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The Truth About Graphics Power Requirements V2
mark84 
25/1/06 10:36:35 PM
Overlord

First up I'd like to thank michael999 for starting the original thread, here http://www.atomicmpc.com.au/forums.asp?s=2&c=7&t=6309.

Alright, below is largely what michael999 had in his thread but with updated Wattages and cards, plus any other info I can find along the way.

*** Please, if you find any info related to this thread or more accurate wattage readings for cards please post the link in here so that I can update the list. ***

Right, on with the show!

--------------------------------------------------------------------------------------
The Truth About Graphics Power Requirements V2
--------------------------------------------------------------------------------------

Ok. There is much confusion as to how much power you actually need to run the new uber card, the answer is not as simple as first thought. It turns out many older cards use more power than the new ones. And the myth that NVIDIA suck more juice is a just that, a myth.

It seems that the main factors behind power consumption are:
- Core/Mem clock speeds - Higher clocks equal higher power consumption. (eg look at the difference between the 7900 GTX & GT, both the same GPU and memory but the core and memory are clocked differently, producing a 36W difference. Similar story with the X1900XT/XTX)
- Die size/fabrication process (110nm/90nm etc) - Smaller process equals a smaller die, thus less power needed. For example look at the 7900 GTX, it's a 196 mm² die size while the X1900XTX is 352 mm², both are 90nm, and clocked almost exactly the same but the 7900 GTX draws 36W less.
- Amount and type of onboard RAM - Greater amounts of onboard RAM capacity mean greater power consumption. Also newer GDDR draws less power GDDR > GDDR2 > GDDR3 > GDDR4. (eg look at the difference between the X1900XT & X1900XT 256MB model, same in every way except capacity and GDDR3 vs GDDR4 respectively, which results in a 10W drop)

--------------------------------------------------
GFX Card Comparison Table
--------------------------------------------------

This table shows GFX cards power consumption, not what the recommended PSU requirements are, but rather the actual draw of the card. The graphs show max 3D power draw as well as idle and max 2D power draw where possible.

All readings have been found on the web, you can find where I got the details from by looking in the "source links" legend below the graphs. I'v provided a simple legend to help you find where it came from. (eg look for an *, ², ^ etc after each reading)

The measurments displayed after each bar on the graph are displayed as min power draw - max 2d power draw - max 3d power draw . If there's only two readings it's likely just min-max 3D, and if there's just the one reading it'll be the max 3d reading.

Last thing of note. I've tried to normalise all the readings found at the various websites against cards that have been properly tested for power draw (eg what xbitlabs mostly does), not just a generic total system score. This should hopefully provide more accurate results for cards with readings that are otherwise of not much use.

For nice and pretty picture versions check these out (kept up to date):
Charts sorted by peak 3D - http://mark.zoomcities.com/images/gfx/GFXpowerchartby3d.png
Charts sorted by idle - http://mark.zoomcities.com/images/gfx/GFXpowerchartbyidle.png


Graph Legend
-------------------
' = 1 Watt
| = 2 Watts
} = 4 Watts
# = 8 Watts
¦) = 8 Watts (min draw mark)
¦] = 8 Watts (max 2D draw mark)


ATI Multicard
----------------------------

HD4870X2 CF__________###################¦)###########################################}| 158W-510W !
HD4870X2 + HD4870 CF_###################¦)############################### 159W-408W ! (HD4870 512MB)
HD4870 CF____________###############¦)###############}|' 128W-255W !
HD4870 + HD4850 CF __###########¦)###############}' 96W-221W §
HD4850 CF____________#########¦)##############}|' 78W-199W ^

HD3870 X2 CF_________###########¦)#######################}|' 95W-307W ^
HD3870X2 + HD3870 CF_##########¦)################' 82W-225W ^
HD3870 CF____________####¦)###############|' 40W-163W !
HD3850 CF____________####¦)############|' 40W-139W !

HD2900 XT CF_________#############¦)########################| 105W-306W ! (2x 1GB GDDR4)
HD2900 XT CF_________###############¦)#########################|' 121W-331W ! (2x 512MB GDDR3)

X1950 XTX CF_________####¦)#####################|' 37W-211W !
X1900 XTX CF_________#####¦)#####################' 43W-217W !
X1900 XT CF__________###¦)###################}' 27W-189W !
X1950 Pro CF_________##¦)##########}| 24W-110W !
X1900 GT CF _________################|' 123W
X1800 XT CF__________######¦)##############|' 52W-171W !
X1800 XL CF__________#######¦)##########}' 62W-149W !
X1650 XT CF__________###¦)########}|' 25W-101W !
X1600 XT CF__________#########}| 78W
X1600 PRO CF________########' 67W
X1300 PRO CF________#######} 60W

X850 XT CF___________##############|' 115W
X800 XL CF___________##########' 81W


ATI Single Card
----------------------------

HD4870 X2____________##########¦)#####################}| 88W-262W !
HD4870 ______________########¦)¦]######| 65W-80W-130W ²
HD4850 X2____________############################}| 230W %
HD4850 OC____________#######¦)########}' 64W-133W § (800/1250)
HD4850 ______________#####¦)#¦]#####}| 41W-61W-110W ²
HD4670 ______________#¦)######}| 10W-70W %
HD4650 ______________#¦)######## 10W-80W %
HD4470 ______________#¦)####| 10W-50W %
HD4450 ______________#¦)#}| 10W-30W %

HD3870 X2____________#######¦)¦]#############|' 58W-66W-171W ²
HD3870 ______________##¦)¦]######' 19W-25W-81W ²
HD3850 X3____________###################} 156W §
HD3850 X2____________######¦)###########' 54W-145W §
HD3850 ______________#¦)¦]####}|' 14W-20W-63W ²
HD3690 ______________##¦)###}' 21W-51W §
HD3650 ______________#¦)###| 12W-42W ² (512MB)
HD3650 ______________##¦)###}' 19W-53W § (256MB)
HD3470 ______________#### 32W
HD3450 ______________##¦)#} 18W-36W §

HD2900 XTX___________#################################}| 270W % (OEM 12.4")
HD2900 XTX___________############################## 240W % (Retail 9.5")
HD2900 XT____________#######¦)##########}| 65W-150W ! (1GB GDDR4)
HD2900 XT____________########¦)¦]##########' 72W-76W-161W ² (512MB GDDR3)
HD2900 Pro___________########¦)¦]######}' 71W-76W-133W ²
HD2900 XL____________######################} 180W %
HD2600 XT____________##¦)¦]##' 21W-28W-49W ²
HD2600 Pro___________#¦)¦]}|' 16W-22W-31W ²
HD2400 XT____________¦)¦]|' 7W-15W-19W ²
HD2400 Pro___________¦)}|' 9W-15W &
HD2400 LE ___________###' <25W +

X1950 XTX____________####¦)#¦]########}' 33W-54W-125W ²
X1900 XTX____________###¦)##¦]########' 29W-50W-121W ²
X1950 XT_____________############ 96W
X1900 XT_____________###¦)#¦]#######}' 28W-46W-109W ²
X1900 XT_____________###¦)########} 26W-100W ^ (R580+ 256MB model)
X1950 Pro____________##¦)#¦]###| 24W-36W-66W ²
X1950 GT ____________###¦)###' 30W-57W &
X1900 GT ____________###¦)#¦]###|' 25W-45W-75W ²
X1800 XT OC _________###¦)#¦]######## 26W-48W-110W ² (XT OC version, 700/1600)
X1800 XT_____________###¦)##¦]#####}|' 30W-52W-103W ²
X1800 XL_____________###¦)#¦]#' 27W-42W-57W ²
X1800 GTO___________###¦)¦]# 25W-35W-48W ²
X1650 XT_____________##¦)##¦]}|' 23W-42W-55W ²
X1650 Pro____________#¦)###} 23W-44W &
X1600 XT_____________##¦)#¦]| 24W-38W-42W ²
X1600 Pro____________##¦)¦]#' 24W-30W-41W ²
X1550 _______________###|' 27W
X1300 XT_____________##}| 22W
X1300 Pro____________##¦)}|' 18W-26W-31W ²
X1050 _______________### 24W

X850 XT PE___________########|' 67W
X850 XT______________###¦)#¦]##}' 27W-45W-69W ²
X800 XT PE___________##¦)####}|' 18W-63W ²
X800 XT ______________######}| 54W
X800 Pro _____________#¦)#### 15W-48W ²
X800 XL ______________##¦)#¦]#' 18W-36W-49W ²
X800 GTO ____________##¦)¦]##' 19W-31W-49W ²
X800 GT______________##¦)¦]# 21W-31W-40W ²
X800_________________###}| 30W
X700 XT______________#¦)##}| 12W-38W !
X700 PRO ____________#¦)#¦]' 16W-30W-33W ²
X700_________________#¦)###} 15W-44W ^
X600 XT______________#¦)#' 11W-25W !
X600 Pro_____________#¦)##} 12W-36W ^
X300_________________¦)###} 8W-36W !
X300 SE______________¦)##}| 7W-30W ^

9800 XT______________####¦)##} 38W-60W ²
9800 Pro_____________###¦)#}|' 31W-47W ²
9700/9800____________####| 34W
9600 XT______________#¦)}| 9W-22W ²
9600 Pro_____________#¦)| 9W-18W ²
9500/9600____________#} 12W
9000-9200____________###} 28W

7x00-8500____________##}|' 23W
<=32MB AGP/PCI _____#}|' <15w

FireGL range
GL V8600____________###########¦)#######}|' 95W-159W ²
GL V7600____________########¦)######}|' 65W-127W ²
GL V7350____________####¦)########}|' 33W-111W §
GL V7300____________############' 97W
GL V7100____________###########|' 91W
GL V5600____________#¦)#########' 15W-89W ²
GL V5200____________####|' 35W
GL V3600____________¦)########' 7W-73W ²
GL V3200____________#####}| 46W

GL X3-256____________#######' 57W
GL X1-256____________####}' 37W


nVidia Multicard
----------------------------

GTX280 3x SLI ________################################################################# 520W §
GTX280 SLI___________##########¦)################################' 88W-345W ^
GTX260 3x SLI ________################¦)###############################}' 130W-389W !
GTX260 SLI___________###########¦)###################### 95W-272W !

9800 GX2 SLI_________#################¦)######################}' 144W-325W ^ ("Quad SLI")
9800 GTX 3x SLI ______#################¦)###########|' 142W-234W !
9800 GTX+ SLI________############¦)#############}|' 102W-215W ^
9800 GTX SLI_________###########¦)################} 92W-228W ^
9600 GT SLI__________#########¦)#######' 79W-137W ! (2x 512MB)

8800 Ultra 3x SLI______##############################¦)############################### 247W-496W ^
8800 Ultra SLI ________####################¦)##################' 168W-313W ^
8800 GTX SLI_________#################¦)##########}|' 142W-231W !
8800 GTS SLI_________############¦)##############' 103W-217W § (2x 512MB)
8800 GT SLI__________#########¦)#########}' 79W-157W ^ (2x 512MB)
8800 GTS SLI_________#############¦)########' 112W-177W ! (2x 640MB)
8800 GTS SLI_________#####################' 169W (2x 320MB)
8600 GTS SLI_________#########}|' 79W

7950 GX2 SLI_________###########¦)#########' 89W-169W ! ("Quad SLI")
7950 GT SLI__________######¦)#######}' 49W-117W !
7900 GX2 SLI_________#########################}' 205W ("Quad SLI")
7900 GTX SLI_________#######¦)############# 62W-168W !
7900 GT SLI__________#####¦)######| 41W-98W !
7900 GS SLI__________#####¦)######}' 41W-101W !
7800 GTX 512 SLI _____#######¦)################' 64W-193W !
7800 GTX SLI_________######¦)#############' 56W-161W !
7800 GT SLI__________####¦)########## 35W-120W !
7600 GT SLI__________##¦)#####}' 24W-69W !
7600 GS SLI__________#####}|' 47W
7300 GS SLI__________###}' 29W

6800 Ultra SLI_________###############| 122W
6800 GT SLI __________###########}| 94W
6800 GS SLI__________####¦)#########|' 39W-115W !
6600 GT SLI __________####¦)######| 33W-90W !


nVidia Single Cards
---------------------------------

GTX 280______________######¦)##¦]############| 50W-79W-178W ²
GTX 260______________#####¦)##¦]######## 44W-65W-136W ²

9800 GX2_____________########¦)#¦]##########}| 69W-83W-182W ²
9800 GTX+____________######¦)#######}' 52W-117W !
9800 GTX OC__________########¦)#¦]###########}|' 68W-82W-183W ² (875/1100 1.528v)
9800 GTX_____________#####¦)¦]######} 45W-54W-108W ²
9800 GT______________####¦)#########} 35W-116W ~
9600 GT______________###¦)¦]##}' 27W-34W-61W ² (512MB)
9600 GT______________###¦)###|' 26W-59W § (256MB)
9600 GSO ____________#####}| 46W
9500 GT______________##¦)#|' 19W-35W § (256MB)

8800 Ultra____________##########¦)#########' 85W-161W *
8800 GTX ____________########¦)#¦]#####} 70W-83W-132W ² (768MB)
8800 GTS ____________####¦)##¦]####|' 38W-58W-99W ² (512MB G92)
8800 GT OC __________####¦)¦]####}' 36W-41-86W ² (512MB 700/1025)
8800 GT _____________####¦)####}| 35W-39W-78W ² (512MB)
8800 GT _____________###¦)##| 31W-50W ^ (256MB)
8800 GTS OC_________#######¦)#¦]####}' 60W-78W-117W ² (640MB 576/1350)
8800 GTS ____________######¦)#¦]####| 58W-71W-106W ² (640MB)
8800 GTS ____________######¦)#¦]###}|' 56W-69W-103W ² (320MB)
8800 GS _____________###¦)###|' 27W-59W §
8600 GTS ____________##¦)¦]#}|' 21W-31W-47W ²
8600 GT _____________###¦)##} 26W-52W ^
8500 GT _____________#¦)¦]|' 14W-19W-27W ²
8400 GS _____________###}| 30W
8300 GS _____________##| 18W

7950 GX2 ____________######¦)######}| 50W ^-110W ²
7900 GX2 ____________#############}' 109W
7900 GTX ____________###¦)##¦]###} 31W-52W-84W ²
7900 GTO ____________###¦)#######} 27W-92W &
7950 GT _____________###¦)¦]##}' 26W-37W-61W ²
7900 GT _____________##¦)¦]## 23W-32W-48W ²
7900 GS _____________##¦)¦]#}' 19W-28W-45W ²
7800 GTX 512_________###¦)##¦]####}' 29W-53W-95W ²
7800 GTX ____________###¦)##¦]###' 29W-52W-81W ²
7800 GT _____________##¦)#¦]##' 20W-39W-57W ²
7800 GS _____________#####} 44W
7600 GT _____________#¦)¦]#} 15W-23W-36W ²
7600 GS _____________#¦)¦]|' 14W-20W-27W ² (underclocked GT)
7300 GT _____________#¦)#}' 13W-29W &
7300 GS _____________#¦) 9W-10W-16W ²
7300 LE______________#| 10W

6800 Ultra____________###¦)##### 29W-72W ²
6800 GT _____________##¦)####' 23W-55W ²
6800 GS_____________##¦)##¦]}|' 20W-41W-55W ²
6800 ________________#¦)#¦]}|' 15W-31W-39W ²
6600 GT _____________##¦)#¦]# 19W-39W-48W ²
6600 ________________#¦)¦]|' 12W-24W-27W ² (GDDR2 model)
6200 ________________#¦)#| 11W-26W !

FX 5950 Ultra_________##¦)######' 20W-73W ²
FX 5900 Ultra_________###¦)###|' 27W-59W ²
FX 5900 XT___________##¦)#|' 24W-35W !
FX 5800 _____________#####} 44W
FX 5700 Ultra_________##¦)##}| 24W-46W ²
FX 5700 _____________#¦)# 10W-24W ²
FX 5600 _____________####}' 37W
FX 5200 _____________###|' 27W

GF4 Ti ______________##### 40W
GF4 MX _____________##}| 22W
GF3 Ti ______________####|' 35W
<=32MB AGP/PCI_____#}|' <15w

Quadro range

FX 5600______________#################| 138W
FX 5500______________#########} 76W
FX 4500______________########### 88W
FX 4400______________#######' 57W
FX 4000 PCI-E ________########}|' 71W
FX 4000 AGP _________######### 72W
FX 3700______________#¦)#######|' 14W-75W ²
FX 3450______________########}| 70W
FX 3400______________######}| 54W
FX 1700______________¦)######}' 7W-61W ²
FX 1400______________##¦)######|' 17W-75W §
FX 1300______________######|' 51W
FX 570_______________¦)######' 7W-57W ²
FX 540_______________###}' 29W
FX 330_______________###}| 30W


S3 Multicard
-----------------------------
MultiChrome S27 ______###¦)##' 25W-49W !


S3 Single Cards
-----------------------------

Chrome 430 GT________#¦)## 13W-32W ~
Chrome S25___________## 16W
Chrome S27___________#¦)¦] 14W-21W-24W ²


Intel Single Cards
-----------------------------
'Larrabee'______________#####################################} 300W %
GMA 900______________¦)#|' 2W-19W ^


Ageia Single Cards
-----------------------------
PhysX PPU____________###} 28W




EDIT: Gotta love ASCII art :P
 
Source Links
------------
NB: Some of these links might not be the only source of info in calculating the ratings

none = Obtained from http://www.extreme.outervision.com/psucalculator.jsp
- Likely to be above actual wattage needed but are still quite accurate
? = Rating yet to be obtained. Just a placeholder for the card.
% = The official "peak power consumption" from the manufacturer
² = Found at xbitlabs:
- http://www.xbitlabs.com/articles/video/display/ati-powercons.html
- http://www.xbitlabs.com/articles/video/display/ati-vs-nv-power.html
- http://www.xbitlabs.com/articles/video/display/gpu-consumption2006.html
- http://www.xbitlabs.com/articles/video/display/powercolor-x1800gto.html
- http://www.xbitlabs.com/articles/video/display/power-noise.html
- http://www.xbitlabs.com/articles/video/display/ati-x1950xtx_7.html
- http://www.xbitlabs.com/articles/video/display/x1950pro-gf7900gs_6.html
- http://www.xbitlabs.com/articles/video/display/geforce7950gt_3.html
- http://www.xbitlabs.com/articles/video/display/radeon-x1650xt_4.html
- http://www.xbitlabs.com/articles/video/display/msi8800gts-640_6.html
- http://www.xbitlabs.com/articles/video/display/geforce8600gts_7.html
- http://www.xbitlabs.com/articles/video/display/r600-architecture_14.html
- http://www.xbitlabs.com/articles/video/display/powercolor-hd2600pro_4.html
- http://www.xbitlabs.com/articles/video/display/radeon-hd2900pro_4.html
- http://www.xbitlabs.com/articles/video/display/gainward-bliss-8800gt_5.html
- http://www.xbitlabs.com/articles/video/display/radeon-hd3870-hd3850_13.html
- http://www.xbitlabs.com/articles/video/display/gainward-bliss9600gt-512gs_7.html
- http://www.xbitlabs.com/articles/video/display/gainward-bliss-8800gt_5.html
- http://www.xbitlabs.com/articles/video/display/geforce9800gtx_7.html
- http://www.xbitlabs.com/articles/video/display/msi-hd3650_4.html
- http://www.xbitlabs.com/articles/video/display/firegl-quadrofx_18.html
- http://www.xbitlabs.com/articles/video/display/ati-radeon-hd4850_14.html
- http://www.xbitlabs.com/articles/video/display/geforce-gtx200-theory_12.html
- http://www.xbitlabs.com/articles/video/display/geforce9800gtx-voltmodding_2.html
³ = Found at tomshardware:
- http://www.tomshardware.com/2008/04/01/nvidia_geforce_9800gtx_review/page12.html
^ = Found at www.anandtech.com
- http://www.anandtech.com/video/showdoc.aspx?i=2238&p=4
- http://www.anandtech.com/video/showdoc.aspx?i=2821&p=13
- http://www.anandtech.com/video/showdoc.aspx?i=3151&p=11
- http://www.anandtech.com/video/showdoc.aspx?i=3175&p=7
- http://www.anandtech.com/video/showdoc.aspx?i=3183&p=5
- http://www.anandtech.com/video/showdoc.aspx?i=3209&p=12
- http://www.anandtech.com/video/showdoc.aspx?i=3232&p=4
- http://www.anandtech.com/video/showdoc.aspx?i=3275&p=7
- http://www.anandtech.com/video/showdoc.aspx?i=3334&p=9
- http://www.anandtech.com/video/showdoc.aspx?i=3338&p=5
- http://www.anandtech.com/video/showdoc.aspx?i=3341&p=22
+ = Found at www.dailytech.com
- http://www.dailytech.com/article.aspx?newsid=7117
~ = Found at www.tweaktown.com
- http://www.tweaktown.com/news/7193/amd_roadmap_update_on_r600_details_confirmed/index.html
- http://www.tweaktown.com/reviews/1172/14/page_14_power_consumption_tests/index.html
- http://www.tweaktown.com/articles/1331/18/page_18_power_consumption_tests/index.html
- http://www.tweaktown.com/articles/1414/10/page_10_power_consumption_tests/index.html
- http://www.tweaktown.com/reviews/1523/17/palit_geforce_9800_gt_sonic_512mb/index.html
* = Found at www.hexus.net
- http://www.hexus.net/content/item.php?item=8687&page=10
& = Found at www.techpowerup.com
- http://www.techpowerup.com/reviews/ATI/HD_2600_XT/17
- http://www.techpowerup.com/reviews/VVIKOO/GeForce_8800_GT_Max_1GB/21.html
! = Found at techreport.com
- http://techreport.com/articles.x/12956/10
- http://techreport.com/articles.x/13967/10
- http://techreport.com/articles.x/9898/6
- http://techreport.com/articles.x/10615/9
- http://techreport.com/articles.x/10758/9
- http://techreport.com/articles.x/10779/9
- http://techreport.com/articles.x/11131/9
- http://techreport.com/articles.x/11686/14
- http://techreport.com/articles.x/9529/13
- http://techreport.com/articles.x/9138/13
- http://techreport.com/articles.x/7356/26
- http://techreport.com/articles.x/7447/14
- http://techreport.com/articles.x/14168/9
- http://techreport.com/articles.x/14967/10
- http://techreport.com/articles.x/14990/15
- http://techreport.com/articles.x/15293/10
§ = Other random websites
- http://en.hardspell.com/doc/showcont.asp?news_id=2365&pageid=2337
- http://www.sudhian.com/index.php?/articles/show/750/4
- http://www.legitreviews.com/article/652/13/
- http://www.bit-tech.net/hardware/2008/03/18/xfx_geforce_9800_gx2_600m_1gb_graphics_card/16
- http://en.expreview.com/2008/03/28/reviewgeforce-9600gt-256mb/4/
- http://www.pcpro.co.uk/reviews/185898
- http://www.neoseeker.com/Articles/Hardware/Reviews/asushd3850x2/12.html
- http://www.guru3d.com/article/geforce-gtx-280-sli-triple-review-test/3
- http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/9159-ati-hd4870-hd4850-crossfire-pe
- http://www.legitreviews.com/article/760/13/
- http://people.overclockers.ru/CoHE/record8

I may refer to these links though out the rest of this article by their symbol key.


Analysis
-------------------
The figures here show that the newer cards like the X1?00 & 7?00 range aren’t really using any more than the previous X?00 and 6?00 series which were used in many shuttle and low power systems. For example, if you ran a 5900 Ultra fine on your 350w PSU, then you will be fine running a 6800gt/7800GT/X800/X1800XL. The main reason is die shrinkage or more efficient architectures. In ATI's case you can see clearly that between the 9?00/X?00/X1?00 series cards there are marked drops in power consumption. This is due to a new core design and shrink from 150nm to 130nm to 110nm to 90nm. In nVidias case they've gone from 130nm with the FX series to 110nm with the 6?00 & 7800 series. That's why there's not a huge drop from 6?00 to 7800 series cards, they're both made on the same manufacturing process but with a newer presumably more efficient architecture.

Getting power to them cards!
--------------------------------------------------
The PCI-Express 1.0 standard allows between 60W and 75w to a graphics card through the PCI-E slot itself, without the need for an additional power connector. But with more and more graphics cards coming out that require either a Molex or 6-pin PCI-E power adapter, this is a dead give away that a PCI-E card needs more than 75W to operate stably (7800GT for example). Each 6-pin PCI-E connector can provide another 75W . So a PCI-E GFX card with a 6-pin power connector attached can draw up to 150W max, with a dual card setup they can draw up to 300W max between them both.

PCI-Express 2.0 offers a doubling of power to discrete cards, up to 150W though the motherboard.

The new 8-pin PCI-E power connector that's come out is in line with the PCI-E 2.0 standard. This means it'll provide 225W to the card with the PCI-E 1.0 slot to provide the remaining 75W for a total of 300W. This new connector is not to be confused with the EPS 8-pin motherboard power connectors already shipping with most power supplies, it's keyed differently and the polarity is reversed, so you really don't want to try and force the wrong connector in. The extra two pins are to be two extra grounding connections, but one is believed to be eventually replaced with a +12v sensor.
http://www.jonnyguru.com/forums/showthread.php?t=171&page=2

The AGP 3.0 standard (AGP 8x) can only deliver a maximum of 41.8 W (6A from 3.3V, 2A from 5V, 1A from 12V = 41.8W and an additional 1.24W could come from the 3.3V auxiliary at 0.375A). AGP cards that need an extra power input will have a molex power connector (9800 Pro for example). By adding the four-pin Molex connections, manufacturers extended the life of AGP cards as each supplied 6.5A or 110.5W from these right angle connections (12V + 5V or 17V x 6.5A = 110.5W). Which makes a total of 151.8W available to AGP cards with a single molex connector.
Info found here http://www.tomshardware.com/2006/07/24/graphics_beginners/page5.html

For PCI, according to the PCI Local Bus rev 2.3, sections 4.3.4.1 and 4.4.1, "requires that an add-in card must limit its total power consumption to 25 watts (from all power rails)."
"Power Supply Rail Tolerances:
Power Rail Add-in Cards (Short and Long)
3.3 V ±0.3 V 7.6 A max. (system dependent)
5 V ± 5 % 5 A max. (system dependent)
12 V ±5% 500 mA max.
-12 V ±10% 100 mA max."
Info found here http://www.opencores.com/forums.cgi/pci/2006/02/000435

Overclocking
--------------------------
Many of you must be wondering how much power is drawn once overclocked. Power consumption does not change a great deal when overclocking (as seen on page 6 of the first ² link), a rough guide is to say the power consumption increases at a slightly greater rate than the overclock. So a 10% overclock will cause a ~11% increase in power and so on. In the case of volt modding the GPU, power draw raises fairly linearly with the overclock (see page 6 of the first ² link). But use this only as a rough guide, and do not count on it if you are in a small power situation such as a small form factor or very small PSU. Plus this may vary with newer architectures, but should remain fairly consistent. On the X800 Pro from the ^ article, increasing the core clock by 20MHz caused an extra 1W draw on power. With most of the other cards from that review being similar.

Multicard configurations
------------------------------------------
Due to the recent introduction of SLI and Crossfire graphics solutions I think it is time to talk a little about the power requirements of using dual video cards. By SLI/CF's very nature it would appear that the requirements on power will be doubled, as you can see by the graphs (in particular the 7800 GTX 512, X1900XT CF and X1800XT CF which I actually have raw data for) that's probably right. The X1800XT CF and GTX 512 requires slightly over double, but the newer X1900XTX CF configuration doesn't draw full (double) power. This is probably due to the fact that the XTX is coupled with an XT master card and thus gets underclocked to XT speeds. So when looking for a power supply to power these configurations make sure they can cater for a bit more (40W at least) than DOUBLE the single cards requirements (plus other PC components), this will ensure stability and allow for some overclocking head room (which I'm sure you'll be doing with these setups ;D)

Something that I've recently found regarding PSUs and the latest in top of the line mutli GFX card systems http://www.extremetech.com/article2/0,1697,1932958,00.asp A must read if your going to build a new, top end SLI/CF PC.

Recommendations
---------------------------------
If you'd like to find out how much power (in watts) your current (pun!) PC uses at full load, the eXtreme PSU Calculator found here http://www.extreme.outervision.com/psucalculator.jsp is a good tool to help you find that out.

So now for the recommended PSU specs. For starters its recomended that you get a quality power supply, yum-cha brands often don't perform to their rated wattage. 300W PSUs may only be able to actually reliably output 250W. Antec, Silverstone, Enermax and OCZ are generally quite reliable PSU's. But there are many other brands that will do the job. There are instances of people using a 6800 Ultra with a 250w PSU. But they know what they are doing and have taken special care in the choice of hardware and monitoring, so it is not recommended. For cards drawing over 80w I suggest a 400w PSU or more, and for cards using over 100w to invest in a 480W+ PSU (while also using CPUs from around the same generation). But in SLI/CF mode with any card from the 6800/7800/X1800/X1900 series it is recommended that you power it with no less than a good quality 550w PSU. And for cards in the 6600 series it is recommended a 480w psu be used. Of course all this depends on your CPU and other components which have to share the available power, which is another section on it's own!

These recommendations take into account the usual configuration that a modern computer uses, such as multiple hard drives, dvd burners, fans, and many expansion cards and other ad-ons. So with these recommendations do not be afraid to have multiple devices.

See here http://www.slizone.com/object/slizone_build_psu.html and here http://ati.amd.com/technology/crossfire/buildyourown2.html for what PSUs nVidia and ATI certify for use with their multicard configurations. Generally something with 34 amps on the 12 volt rails. And here http://ati.amd.com/products/certified/powersupplies.html for ATI single card PSU recommendations.


Edited by mark84: 16/8/2008 7:52:54 PM

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A64 4400+ @ FX-60 | XFX 7800GT 256MB | DFI LP UT Expert | Audigy2 ZS | 411S@811S | DVR-109@A09XL | 4x80GB RAID0 | 1GB OCZ Value VX | Gigabyte 3D Galaxy | Blue Xaser III case |

morgoth 
25/1/06 10:49:04 PM
Hero
Titan


Wow, You PM'd a mod yet?

if it goes though, welcome to people that have sticky threads :P

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Founder of **Atomic Hardcore Techno-Metal Club**
Abit NF7-S (BLACK-MANTARAY D26XT 2T L12), Mobile IQYHA Barton 2500+@11.5x225, 2x512 Team Xtreem UTT BH5@225Mhz 2-2-2-11 ~3.3v (DDR Booster), Enermax 535W SLi PSU

mark84 
25/1/06 10:59:13 PM
Overlord




Edited by mark84: 11/7/2008 09:19:29 PM

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A64 4400+ @ FX-60 | XFX 7800GT 256MB | DFI LP UT Expert | Audigy2 ZS | 411S@811S | DVR-109@A09XL | 4x80GB RAID0 | 1GB OCZ Value VX | Gigabyte 3D Galaxy | Blue Xaser III case |

Shplade 
25/1/06 11:54:01 PM
Titan

Michael has returned recently, I'm sure he'll post here at some stage.

Good work btw.

+1 sticky

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AthlonXP 1700+ @ 2310MHz (210x11) 1.7v | 1GB Corsair TwinX-3200C2 | Leadtek A400 TDH (16x1,6vp) @ 435/870MHz | Audigy 2 ZS

<3 Radley Johnson

The_Salty_Peanut 
26/1/06 12:54:05 AM
Mod
Hero

Titan


Nice work !

There is no point having a sticky not being up to date and relavant, so i'll perform a little ceremony and hopefully this thread'll become sticky. Now.. bare with me, these instructions are a little hard to read since Moz had a go at them...


















Woo! It worked! :P


Peanut.

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Support our boys in the bunker !

http://www.australiangamer.com

Well... I dunno where the bunker bit came from... But meh.

michael999 
26/1/06 10:57:26 AM
Guru

Great work mate, i just got directed here by shplade :)

Yah im not here enough to keep mine up to date, im glad to see your taking over with flying colours :)

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1800+ @210x11=2.33Ghz 1.78v (JIUHB DLT3C)w/Zalman 7000alcu, AN7, 6800@365/805, 1gb ddr400, 320gb, Audigy, Antec TB 480w, 812s@832s, CM Centurion 5, Lansing 251s, Logi mx duo w/everglide ricochet.

Adelaide
michaellane999(at)hotmail.com

mark84 
26/1/06 3:51:16 PM
Overlord

W00T! stickification! Thanks Salty.

micheal999 - Thanks, I waited a few days for a reply but nothing came back so I thought I'd go ahead with it anyway :}

Ok I'll get to work fixing up the graphs and updating the bottom half of the information.


Edited by mark84: 26/1/2006 4:57:52 PM

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A64 4400+ @ FX-60 | XFX 7800GT 256MB | DFI LP UT Expert | Audigy2 ZS | 411S@811S | DVR-109@A09XL | 4x80GB RAID0 | 1GB OCZ Value VX | Gigabyte 3D Galaxy | Blue Xaser III case |

mark84 
27/1/06 5:20:49 PM
Overlord

Ok all done! I've redone the graphs to get over the aparent word string length of the V2.5 forums, got them looking nice n in proportion (not easy!)

Also did a complete remake of micheal999s original information section. Divided it into categories and added what ever I could think of.

Tell me what you think!
Does the large info/text blocks need to be broken up for easier reading? Anything else to add?

And please, post links for associated material!

Would people also like a breif section on other component power requirements? ie CPUs, HDDs, fans, lights etc?


Edited by mark84: 27/1/2006 5:21:56 PM

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A64 4400+ @ FX-60 | XFX 7800GT 256MB | DFI LP UT Expert | Audigy2 ZS | 411S@811S | DVR-109@A09XL | 4x80GB RAID0 | 1GB OCZ Value VX | Gigabyte 3D Galaxy | Blue Xaser III case |

mark84 
3/2/06 12:42:57 AM
Overlord

Updated wattages and added the X1800XT OC, X850XT, X800 GTO, X800 GT, X700 PRO and Chrome S27 cards.

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | DVR-109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

Mantai 
13/2/06 11:05:59 AM
Guru

geez im running a 9700 pro with a 330W PSU and soem new cards are allready doing 220W heh... i was looking in scorptech and saw some nvidia card coming with a spare power supply for intense gaming,

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No soup for you, come back one year! *soupnazi*

mark84 
3/3/06 12:44:18 AM
Champion

Updated some of the wattages as http://www.extreme.outervision.com/index.jsp seems to have updated their ratings and the types of cards available, also added the Chrome S25

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

mark84 
6/3/06 9:50:27 PM
Champion

Yay a whole thread for myself to spam up :P
j/k

Added in the X850XT CF, X1300 Pro CF and X1600XT CF wattages.
Adjusted and updated the wording here and there.
Added an interesting article http://www.extremetech.com/article2/0,1697,1932958,00.asp I read, about the latest multicard configs and PSUs, a must read.


Edited by mark84: 6/3/2006 9:51:19 PM

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

mark84 
9/3/06 11:28:57 PM
Champion

Added 7900 GTX and GT "peak" consumption wattages.

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

mark84 
17/3/06 6:45:24 PM
Champion

Found something interesting. The new 7900 GX2 quad SLI setup will use an incredible amount of power, the whole quad SLI system shown at CBIT 06 consumes 650W! http://www.dailytech.com/article.aspx?newsid=1281

Going off that you could speculate that the GFX power consumption alone would be in the 400W range!!

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

mark84 
23/3/06 10:22:02 PM
Champion

Added:

- 7600 GS
- 7600 GT
found from http://www.dailytech.com/article.aspx?newsid=1373
- 7600 GT SLI
- 7900 GT SLI
- 7900 GTX SLI
- X1800XL CF

Trying to dig up 7300 GS and LE plus X1800 GTO ratings ATM but can't seem to find any, please tell me if you find some.


Edited by mark84: 23/3/2006 11:57:09 PM

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

sora3 
16/4/06 9:43:10 PM
Titan

mark, I would also comment that the Crossfire/SLI would need a PSU that can handle 34amps on the combined 12V lines. This way, it can stably run. That's how my PSU died. Too much stress from the 12V lines :(

-----
The days of the XP are over...
http://www.atomicmpc.com.au/forums.asp?s=2&c=6&t=9902

Current comp: Athlon 64 3000+ (socket 754 Venice!) @ 2.4Ghz / X800Pro
My own comp: Athlon 64 X2 / X1800XT <- currently in repairs :(

mark84 
19/4/06 3:55:15 PM
Champion

Mmm yeah that's where I'm kinda suss about those requirements. 34A*12V=408W. No SLI/CF setup ATM needs that much on it's own, but I wonder if that's meant for the whole system? ~200W for SLI/CF setup, 208W for the rest of the PC.

What's your setup that caused the PSU to die? What capacity was the PSU?

I'll add something about this next time I update the post.

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

sora3 
19/4/06 4:54:11 PM
Titan

Well, the PSU was a Tagan 480watt PSU.

Setup was:
Athlon 64 X2 3800+
2GB PQI DDR400 Turbo RAM
DFI RDX200 CF-DR
Gecube X1800XT
HIS X1800 Crossfire Master Card
200GB Segate SATA HDD
Pioneer DVR-111D
LG DVD ROM

Probably the Crossfire setup killed it :( But luckily it was still under warrenty so I sent it back and Nintek told me that there are no more PSUs of that kind so they sent me the 580watt PSU. Hopefully, this one would be more stable than the last one.

-----
The days of the XP are over...
http://www.atomicmpc.com.au/forums.asp?s=2&c=6&t=9902

Family comp: Athlon 64 3000+ (socket 754 Venice!) @ 2.45Ghz / X800Pro
My own comp: Athlon 64 X2 / X1800XT

tangovski 
19/4/06 5:12:35 PM
Overlord

[bump]

Oops, this new version slipped under my eyes abit. Anyway great effort there and thanks ALOT for keeping this endlessly good topic afloat.

+1 thanks Salty for sticky-bitsy

(^o^)


Edited by tangovski: 19/4/2006 5:14:13 PM

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SPEC:
Athlon Barton 3200+@2.365GHz
GA-7N400-L
2GB DDR400 Hynix@430MHz
Leadtek 6600GT 128MB @576/1100
2x WD Caviar 80Gb 7200rpm 8Mb
SB Audigy2,DX9c,F/ware 84.21,WinXP PRO SP1
400VA/240W UPS
LG 17" Flatron F700B
S'su

mark84 
28/4/06 12:14:48 PM
Champion

Ok post updated

Added:
-7950 GX2
-7950 GX2 quad SLI
-7300 GS
-7300 LE
-Quadro range
-FireGL range
-Websites with multicard certified PSU listings

sora3 - Yeah I would've been a bit skittish about using a 480W with that setup. 550W minimum.

tangovski - Thanks for the support, glad to help :P

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4400+ @ 2.6GHz | HIS X1900XT | DFI Expert | Mushkin 991483 | Audigy2 ZS | 411S@811S | 109@A09XL | 4x80GB RAID0 |Gigabyte 3D Galaxy | Xaser III 1000D | ST60F |

The Truth About Graphics Power Requirements V2
http://tinyurl.com/cj3pw

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