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Power In SLI/CrossFire And Watts Per Frame

Nvidia GeForce GTX 590 3 GB Review: Firing Back With 1024 CUDA Cores
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One chart that was missing from the Radeon HD 6990 story, and subsequently requested, was a power consumption chart comparing the dual-Cayman board to CrossFire’d and SLI’d configurations. “Fair enough,” I thought. “We’re telling folks to skip the 6990 entirely and buy 6970s or GTX 570s—it’s reasonable to want to know how those setups size up with regards to power use.” So, here’s that graph:

In addition to the 6990, 6970s, and 570s, I’ve also added the 590 and a pair of 580s in SLI.

Clearly, two GeForce GTX 580s ratchet up power use in a way that no other setup comes close to rivaling. The other solutions are much more evenly matched, though.


Average Power Consumption (Metro 2033, Three Runs)
Nvidia GeForce GTX 590
437.27 W
Nvidia GeForce GTX 580 SLI
559.85 W
Nvidia GeForce GTX 570 SLI
420.35 W
AMD Radeon HD 6990
402.30 W
AMD Radeon HD 6970 CrossFire
442.18 W


On average, the GTX 580s impose a 559 W system power figure running Metro 2033. Two Radeon HD 6970s in CrossFire are the next most power-hungry, averaging 442 W system power. The GeForce GTX 590-based system is just five watts behind, while two GTX 570s turn in an average power figure of 420 W. AMD’s Radeon HD 6990 (running at its stock clocks) winds up being the most power-friendly option, registering 402 W average system power.

Here’s the average frame rate each configuration achieved while we logged those power numbers.

A couple of folks looking to deflect criticism of the 6990’s value asked for a chart depicting watts per frame. There you go, gentlemen. The Radeon HD 6990 uses less power per frame per second than two Radeon HD 6970s, and both AMD-based configurations consume less system power per frame than all three Nvidia-based setups. Now, flip back to the previous page, replay the 6990 video, and think about all of the conversations you can enjoy not hearing!

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Top Comments
  • 15 Hide
    Scoregie , March 24, 2011 12:40 PM
    MMMM... HD 6990.... OR GTX 590... HMMM I'll go with a HD 5770 CF setup because im cheap.
  • 13 Hide
    nforce4max , March 24, 2011 12:18 PM
    Nvidia like ATI should have gone full copper for their coolers instead of using aluminum for the fins. :/ 
Other Comments
  • 13 Hide
    nforce4max , March 24, 2011 12:18 PM
    Nvidia like ATI should have gone full copper for their coolers instead of using aluminum for the fins. :/ 
  • 5 Hide
    The_King , March 24, 2011 12:20 PM
    The clock speeds are a bit of a disappointment as well the high power draw and the performance is not that better than a 6990. Bleh !
  • 5 Hide
    stryk55 , March 24, 2011 12:21 PM
    Very comprehensive article! Nice job!
  • 6 Hide
    LegendaryFrog , March 24, 2011 12:23 PM
    I'm impressed, good to see Nvida has started to care about the "livable experience" of their high end products.
  • 2 Hide
    plznote , March 24, 2011 12:24 PM
    Great card. But low clocks.
    GREAT for overclocking!
  • 1 Hide
    darkchazz , March 24, 2011 12:27 PM
    Wow @ low noise
  • 7 Hide
    rolli59 , March 24, 2011 12:27 PM
    Draw! Win some loose some. What is the fastest card? Some will say GTX590 others HD6990 and they are both right.
  • 15 Hide
    Scoregie , March 24, 2011 12:40 PM
    MMMM... HD 6990.... OR GTX 590... HMMM I'll go with a HD 5770 CF setup because im cheap.
  • 3 Hide
    Sabiancym , March 24, 2011 12:42 PM
    You can't say Nvidia wins based on the sound level of the cards. That's just flat out favoritism.

    I'll be buying a 6990 and water cooling it. Nothing will beat it.
  • 6 Hide
    Darkerson , March 24, 2011 12:44 PM
    rolli59Draw! Win some loose some. What is the fastest card? Some will say GTX590 others HD6990 and they are both right.

    Thats more or less how I feel. They both trade blows depending on the game.
  • 5 Hide
    shark195 , March 24, 2011 12:47 PM
    I think both cards are faster in their own niches, for example in acoustics 590 wins, but in power which is the main issue to tackle as days go by, your bill will certainly go high, but you don't pay anything for the noise, so in that case AMD STILL has the fastest single graphic card on the planet.
    AMD is still the winner, whichever you look at it though
  • 0 Hide
    trandoanhung1991 , March 24, 2011 12:53 PM
    SabiancymYou can't say Nvidia wins based on the sound level of the cards. That's just flat out favoritism. I'll be buying a 6990 and water cooling it. Nothing will beat it.

    I think 2 GTX 580 will beat it. And costs about the same too, if you look hard enough.

    shark195I think both cards are faster in their own niches, for example in acoustics 590 wins, but in power which is the main issue to tackle as days go by, your bill will certainly go high, but you don't pay anything for the noise, so in that case AMD STILL has the fastest single graphic card on the planet. AMD is still the winner, whichever you look at it though


    The 590 uses less than 10W more compared to 6990 in AUSUM. Compare that to 430W, and it's small change, really.
  • 1 Hide
    ledpellet , March 24, 2011 12:56 PM
    Well, at the moment 590s are not available to buy, so it does not exist beyond benchmarks and reviews...It is not a competition till we see real world pricing. Let the battle begin! btw 5870 price is hard to beat right now.
  • -1 Hide
    vaughn2k , March 24, 2011 12:57 PM
    "Nevertheless, in a comparison between GeForce GTX 590 versus Radeon HD 6990, Nvidia wins."
    "Not hearing it is a requisite"

    Done a survey? How many says it's a requisite?

    Also at performance preset, the GTX590 leads, wondering why there's no benchmark for extreme preset?
  • 4 Hide
    Yuka , March 24, 2011 12:57 PM
    This is no nVidia victory, I'm sure of it, but it's such a small margin it sucks. That 1.5GB per GPU hurts the card where you'll be using it most: high res. It's like a tech KO by AMD, not a flat out punch-KO though.

    Cheers!
  • 5 Hide
    hardcore_gamer , March 24, 2011 12:58 PM
    The card blew up during testing at tech power up.Power limiting system does not work reliably :o  :pfff: 
  • -1 Hide
    nukemaster , March 24, 2011 12:58 PM
    i wonder how long until AMD board partners use a fan instead of blower(blowers win on air flow, but they can be louder), i have seen several such coolers on other amd and nvidia cards.

    Either way, the lower noise is impressive.
  • 4 Hide
    pelov , March 24, 2011 1:00 PM
    Does anyone else think that the 1680 benchmarks shouldn't be used in cards like this?

    Paying >$600 for a GPU almost certainly means you have multiple monitor setups and/or high res monitor(s). Otherwise why not buy a better monitor and a lower costing card to use its full potential?
  • 6 Hide
    Rosanjin , March 24, 2011 1:05 PM
    Thank you for posting the audio samples of both dual GPU cards. Getting to hear each one really made the difference telling. I'll be sticking with single gpu card arrangements, thank you very much. ^ ^ b
  • 0 Hide
    Anonymous , March 24, 2011 1:05 PM
    Very good article, one of the better ones to come from Toms in a long time, thanks was a great read.

    In terms of Nvidia releasing a chart topper, I think they created a equal here, tables a rebalanced at the top, Its been a long time since that was the case!

    With regards to saying Nvidia wins down to noise output, that is just your opinion! I believe the 480 was a damn fast card noise irrelevant, now refined in the 580!

    Personally, at 1920x1080 I still see no need in replacing my 5850 just yet, I spent my money on a 50"3d TV instead, and still 5850 runs on that great which is by far a better size to play on then 3x1920x1080 imo.
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