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Written by Olin Coles   
Tuesday, 11 May 2010
Table of Contents: Page Index
Zotac GeForce GTX-480 Fermi Video Card
Features and Specifications
NVIDIA GF100 GPU Fermi Architecture
Closer Look: Zotac GeForce GTX480
Video Card Testing Methodology
3DMark Vantage GPU Tests
Battlefield: Bad Company 2
BattleForge Performance
Crysis Warhead Tests
Far Cry 2 Benchmark
Resident Evil 5 Tests
Metro 2033 DX11 Performance
Unigine Heaven Benchmark
NVIDIA APEX PhysX Enhancements
NVIDIA 3D-Vision Effects
GeForce GTX480 Temperatures
VGA Power Consumption
Editors Opinion: Fermi GF100
ZOTAC GTX-480 Conclusion

VGA Power Consumption

Life is not as affordable as it used to be, and items such as gasoline, natural gas, and electricity all top the list of resources which have exploded in price over the past few years. Add to this the limit of non-renewable resources compared to current demands, and you can see that the prices are only going to get worse. Planet Earth is needs our help, and needs it badly. With forests becoming barren of vegetation and snow capped poles quickly turning brown, the technology industry has a new attitude towards turning "green". I'll spare you the powerful marketing hype that gets sent from various manufacturers every day, and get right to the point: your computer hasn't been doing much to help save energy... at least up until now.

For power consumption tests, Benchmark Reviews utilizes the 80-PLUS GOLD certified OCZ Z-Series Gold 850W PSU, model OCZZ850. This power supply unit has been tested to provide over 90% typical efficiency by Chroma System Solutions. To measure isolated video card power consumption, Benchmark Reviews uses the Kill-A-Watt EZ (model P4460) power meter made by P3 International.

A baseline test is taken without a video card installed inside our test computer system, which is allowed to boot into Windows-7 and rest idle at the login screen before power consumption is recorded. Once the baseline reading has been taken, the graphics card is installed and the system is again booted into Windows and left idle at the login screen. Our final loaded power consumption reading is taken with the video card running a stress test using FurMark. Below is a chart with the isolated video card power consumption (not system total) displayed in Watts for each specified test product:

Video Card Power Consumption by Benchmark Reviews

VGA Product Description

(sorted by combined total power)

Idle Power

Loaded Power

NVIDIA GeForce GTX 480 SLI Set
82 W
655 W
NVIDIA GeForce GTX 590 Reference Design
53 W
396 W
ATI Radeon HD 4870 X2 Reference Design
100 W
320 W
AMD Radeon HD 6990 Reference Design
46 W
350 W
NVIDIA GeForce GTX 295 Reference Design
74 W
302 W
ASUS GeForce GTX 480 Reference Design
39 W
315 W
ATI Radeon HD 5970 Reference Design
48 W
299 W
NVIDIA GeForce GTX 690 Reference Design
25 W
321 W
ATI Radeon HD 4850 CrossFireX Set
123 W
210 W
ATI Radeon HD 4890 Reference Design
65 W
268 W
AMD Radeon HD 7970 Reference Design
21 W
311 W
NVIDIA GeForce GTX 470 Reference Design
42 W
278 W
NVIDIA GeForce GTX 580 Reference Design
31 W
246 W
NVIDIA GeForce GTX 570 Reference Design
31 W
241 W
ATI Radeon HD 5870 Reference Design
25 W
240 W
ATI Radeon HD 6970 Reference Design
24 W
233 W
NVIDIA GeForce GTX 465 Reference Design
36 W
219 W
NVIDIA GeForce GTX 680 Reference Design
14 W
243 W
Sapphire Radeon HD 4850 X2 11139-00-40R
73 W
180 W
NVIDIA GeForce 9800 GX2 Reference Design
85 W
186 W
NVIDIA GeForce GTX 780 Reference Design
10 W
275 W
NVIDIA GeForce GTX 770 Reference Design
9 W
256 W
NVIDIA GeForce GTX 280 Reference Design
35 W
225 W
NVIDIA GeForce GTX 260 (216) Reference Design
42 W
203 W
ATI Radeon HD 4870 Reference Design
58 W
166 W
NVIDIA GeForce GTX 560 Ti Reference Design
17 W
199 W
NVIDIA GeForce GTX 460 Reference Design
18 W
167 W
AMD Radeon HD 6870 Reference Design
20 W
162 W
NVIDIA GeForce GTX 670 Reference Design
14 W
167 W
ATI Radeon HD 5850 Reference Design
24 W
157 W
NVIDIA GeForce GTX 650 Ti BOOST Reference Design
8 W
164 W
AMD Radeon HD 6850 Reference Design
20 W
139 W
NVIDIA GeForce 8800 GT Reference Design
31 W
133 W
ATI Radeon HD 4770 RV740 GDDR5 Reference Design
37 W
120 W
ATI Radeon HD 5770 Reference Design
16 W
122 W
NVIDIA GeForce GTS 450 Reference Design
22 W
115 W
NVIDIA GeForce GTX 650 Ti Reference Design
12 W
112 W
ATI Radeon HD 4670 Reference Design
9 W
70 W
* Results are accurate to within +/- 5W.

When Benchmark Reviews first tested the NVIDIA GeForce GTX-480 engineering sample, the idle power draw was a thirsty 52 watts of electricity, and perhaps among the highest idle power draw we've measured for DirectX-11 generation graphics cards. This level of consumption is slightly higher than the 48W we measured for the dual-GPU ATI Radeon HD 5970, and more than twice the demand of ATI's Radeon HD5870 and HD5850.

Unlike the dramatic decrease in temperature, the retail firmware didn't massage GPU cores to the same extent, and idle power draw on the Zotac GeForce GTX 480 was 48W... down only 4W. I suppose it's a start in the right direction, but Fermi proves to have a big power appetite when it should be snacking on only a few watts.

Once 3D-applications begin to demand power from the GPU, electrical power consumption really begins to climb. Measured at full 3D load, the NVIDIA GeForce GTX 480 engineering sample set a new maximum power record and consumed 370 watts. With a more mature BIOS controlling the unit, our retail Zotac GeForce GTX 480 slimmed down to 355W... a decrease of 15W.

Although Fermi features a 40nm fabrication process, there's nothing 'Green' about the power demand under load. Sure, the performance-per-watt ratio is higher on the GTX480 than the other cards, but it comes with a cost to consumable energy. Putting things into perspective, the enthusiast PC gamer who can afford the NVIDIA GeForce GTX 480 probably isn't very worried about a few extra dollars on their power bill each month.



 

Comments 

 
# Other TestsFederico La Morgia 2010-05-13 22:57
3 x 480 ?
tests in OC ?
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# Next Zotac 480 coming soonWW_Dagger 2010-05-26 16:44
I've set my heart on the recently announced Zotac FTX 480 AMP. This takes the cake! Faster yet quieter, and looks just awesome.
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# RE: Next Zotac 480 coming soonFederico La Morgia 2010-05-26 22:09
Point my heart, I would like a Fermi limited to 480 SP, but having the full 512-SP.
Not only!, I wish to put in dual-GPU as my current GTX 295 and directly to the liquid cooled heat sink with copper entirely!
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# HD5870Ansuex 2010-09-10 00:32
Is it just me? or is the 5870 losing less fps when resolution is turned higer compared to the GTX480 or?
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