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Written by Olin Coles   
Wednesday, 15 December 2010
Table of Contents: Page Index
PowerColor Radeon HD 6970 Video Card
PowerColor Radeon 6970 Closer Look
Features and Specifications
Video Card Testing Methodology
DX10: 3DMark Vantage
DX10: Crysis Warhead
DX11: Aliens vs Predator
DX11: Battlefield Bad Company 2
DX11: BattleForge
DX11: Lost Planet 2
DX9 SSAO: Mafia II
DX11: Metro 2033
DX11: Unigine Heaven 2.1
Radeon HD 6970 Temperatures
VGA Power Consumption
PowerColor Radeon HD 6970 Conclusion

VGA Power Consumption

For power consumption tests, Benchmark Reviews utilizes an 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 measurement is taken without any video card installed on 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 before taking the idle reading. 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 (system without video card minus measured 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.

As we previously mentioned in the Radeon HD 6970 Temperatures section, the Cayman GPU was originally designed for 32nm but was ultimately constructed at 40nm. This increased the die size, and raised the operating temperature to levels that AMD isn't generally known for. Judging from the chart of results above, it appears that the 40nm Cayman GPU may not have created the power monster we anticipated. The AMD Radeon HD 6970 requires one eight-pin and one six-pin PCI-E power connection for proper operation. Resting at idle with no GPU load, the Radeon HD 6970 consumed only 24W of electricity. Compensating for a small margin of error, this falls roughly in-line with idle power draw from the ATI Radeon HD 5870. The noteworthy idle results were actually 7W less than the competing GeForce GTX 570 video card, but not quite as efficient as the 20W Radeon HD 6870. But what about under full 3D load?

Once 3D-applications begin to demand power from the Cayman GPU, electrical power consumption climbs to 233 watts. Measured at full throttle with FurMark's 3D torture load, these results were 8W lower than the GeForce GTX 570 (241W maximum power draw), and 7W less than the ATI Radeon HD 5870. Overall it seems that the 40nm Cayman GPU is fairly efficient, especially considering the 2.64-billion transistors it feeds. The graphical performance more or less matched the GeForce GTX 570, so it's nice to see the Radeon HD 6970 dropping a few watts from the power consumption.



 

Comments 

 
# RE: PowerColor Radeon HD 6970 Video CardHarry 2010-12-14 21:16
Where is the 3D Mark 11 benchmark?
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# RE: RE: PowerColor Radeon HD 6970 Video CardOlin Coles 2010-12-14 21:23
Many sites aren't using 3DMark11 until after it receives approval from both NVIDIA and AMD. We're not using it until we re-test every single DX11 video card to determine what settings would be best. Just so you know, a GeForce GTX 580 barely produces 30 FPS using the medium test quality at 720p.
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# 3DMark 11 SLIServando Silva 2010-12-14 23:17
Additionally, 3DMark 11 has no support for SLI setups, so I'll wait for it to evolve with a newer patch.
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# RE: PowerColor Radeon HD 6970 Video CardRobert17 2010-12-15 02:38
Good work. Seems like the GPU wars continue to the consumers advantage. Thanks for baring the numbers and eliminating the wait.

I guess AMD will launch all new products when 32nm becomes available. Any insider clue on when that may occur?
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# PoV's client sideresere 2010-12-15 05:33
i'm not working, drinking, family friend for none involved: nV, AMD, BmR.
sometimes i'm pissed of by Coles style: involved, passionate, stubborn.
BUT: the alternative are all kind of high priests, gurus (no, it's not an arrow to g3D) who made definitive verdicts, and then, never come down in the crowd, or patronise everyone.
so, i've made my choise.
I respect Olin Coles and bmr, with goods, bads and uglies. I admit there is room for better, but i agree with the path.

Don't bother answer, just think about. and this is not a sugestion for calm and harmony. i like creative flames. but assumed by everyone.
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# oh, andresere 2010-12-15 05:40
still hate BmR for not including GTX 460 SLI in results. but i'll live with.
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# RE: PowerColor Radeon HD 6970 Video CardChris 2010-12-15 06:25
Olin, do you think that drivers on this GPU are optimized?

It seems that in some games, this GPU outperforms the GTX 470 and in other games, well, this card has really bad performance. I appreciate the work that you've done, but I suspect that a second review may be needed once the public release version comes out.

Otherwise, it seems that little has changed. Nvidia has the very expensive, very high performance single card GPU, and ATI/AMD has a slower card that is less expensive and comparable to Nvidia's second most potent card - kind of like the GTX 275 vs the 4890 situation, where Nvidia had the 285 that was untouchable for any single-card solution.
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# Decisions,....RealNeil 2010-12-15 07:42
I've been waiting for this release to decide on my purchase of two video cards to run in CrossFire or SLI. The HD-6970 doesn't seem to be anything earth shattering when I read the review here. I had already all but decided on a pair of EVGA Superclocked GTX570's for my new build, but was waiting for this much talked about release, just in case ATI/AMD had a 'Rabbit In Their Hat', so to speak.
Although the HD6970 is a truly capable card, the GTX570 is too, and it also has a few capabilities that the ATI/AMD card does not. (CUDA & Phys-X)
So now I can just go ahead and buy my parts.
Thanks for the comprehensive review.
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# I AgreeBunzing 2010-12-16 07:32
RealNeil, I feel totaly the same. The benchmarks for the 570 were verry positive and when you look at the extra features of CUDA and Phys-X this card doesn't hold up one bit. I'm going for nVidia for the first time in years.
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# RE: PowerColor Radeon HD 6970 Video CardBunzing 2010-12-16 07:34
Wow, I just found a Sapphire 5970 for ?400,- (live in the Netherlands). What would you guys do? I'm going for a single-card setup.
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# RE: RE: PowerColor Radeon HD 6970 Video CardOlin Coles 2010-12-16 08:13
What does a GTX 570 cost in the Netherlands?
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# RE: RE: RE: PowerColor Radeon HD 6970 Video CardBunzing 2010-12-24 23:35
The GTX 570 costs 330,- at the moment.
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# RE: PowerColor Radeon HD 6970 Video CardBunzing 2010-12-16 07:52
I mean euro's. The euro symbol doesn't appear as it should.
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# RE: PowerColor Radeon HD 6970 Video CardSteven Iglesias-Hearst 2010-12-16 09:41
novatech have a Radeon 5970 for £414.99 and a GTX 570 for £309.99 and a GTX 580 for £399.95 (all including VAT) I know what I would do...
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# RE: PowerColor Radeon HD 6970 Video Card3DVagabond 2010-12-24 17:41
I love when people look at a review of an AMD card then start spouting PhysX and CUDA. CUDA can be very useful, but give me a break. If you need CUDA you aren't going to waste your time looking at AMD cards. You are just tossing it around like nVidia wants. Say it enough times and people will decide they have to have it. PhsyX? Well, nobody needs PhysX. It's less than useless. It just kills frame rates for little to no benefit.

If you need CUDA, use apps. that take advantage of it, then get an nVidia card and stop thread crapping in AMD reviews.

If you want to play games and you are a fan of the tech then AMD might be your choice. Smaller more efficient designs that take advantage of newer faster RAM and aim to push performance/$, multi-monitor gaming, etc.
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# RE: RE: PowerColor Radeon HD 6970 Video CardOlin Coles 2010-12-24 19:28
I disagree with your rather unsupported claims against PhysX. It sure looks like it adds more the enough to warrant its use here:
benchmarkreviews.com/index.php?option=com_content&task=view&id=582&Itemid=64&limit=1&limitstart=4

As for your last statement, I've got to wonder where you've been. Smaller and more efficient - what product are you talking about here? Newer and faster RAM - both vendors have been using the same GDDR5 for almost a year.
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# Crossfire MasterHenkenator68NL 2011-01-27 18:28
I have checked all results, it would have been nice if the 6970 would have been compared against 2 x 6870 in crossfire.
Ik have this setup and al benchmark results of the 6870 in crosfire are better than the 6970 results. So my advice: buy 2 6870 and put them in crossfire mode!!
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