Compute Performance

For our look at compute performance this is going to be a brief look. Our OpenGL AES and DirectCompute Fluid Simulation benchmarks simply don’t scale with multiple GPUs, so we’ll skip though (though the data is still available in Bench).

Our first compute benchmark comes from Civilization V, which uses DirectCompute to decompress textures on the fly. Civ V includes a sub-benchmark that exclusively tests the speed of their texture decompression algorithm by repeatedly decompressing the textures required for one of the game’s leader scenes. Note that this is a DX11 DirectCompute benchmark.

Given the nature of the benchmark, it’s not surprising that we see a performance regression here with some setups. The nature of this benchmark is that it doesn’t split across multiple GPUs well, though that doesn’t stop AMD and NVIDIA from tying. This doesn’t impact real game performance as we’ve seen, but it’s a good reminder of the potential pitfalls of multi-GPU configurations. Though AMD does deserve some credit here for gaining on their single GPU performance, pushing their lead even higher.

Our other compute benchmark is SmallLuxGPU, the GPU ray tracing branch of the open source LuxRender renderer. We’re now using a development build from the version 2.0 branch, and we’ve moved on to a more complex scene that hopefully will provide a greater challenge to our GPUs.

Unlike the Civ V compute benchmark, SLG scales very well with multiple GPUs, nearly doubling in performance. Unfortunately for NVIDIA GK104 shows its colors here as a compute-weak GPU, and even with two of them we’re nowhere close to one 7970, let alone the monster that is two. If you’re looking at doing serious GPGPU compute work, you should be looking at Fermi, Tahiti, or the future Big Kepler.

Civilization V Power, Temperature, & Noise
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  • Makaveli - Thursday, May 03, 2012 - link

    Some of us don't buy 16:9 monitors or TN panels!

    I want results at 1920x1200 and other 16:10 resolution you can shut up with your amd bias which you have no proof of other than your flawed logic.

    Reply
  • CeriseCogburn - Thursday, May 03, 2012 - link

    Then you don't buy much. 1920x1200 is a very rare monitor. Reply
  • Parhel - Thursday, May 03, 2012 - link

    1920x1200 was very common for several years. Until a few years ago, they were much more common than 1920x1080. I even have an old laptop that's 1920x1200. Looking at what's available to buy new, today, doesn't tell the whole story. Because people don't replace their monitors every day.

    Anandtech has always recommended spending up and getting a quality monitor. You see it in nearly every review. So, I think the readers here are more likely than the average guy on the street to own less common screens. I've had the same 2560x1600 monitor through 3 computers now, and I spent more on it than I've ever spent on any computer.
    Reply
  • CeriseCogburn - Saturday, May 05, 2012 - link

    Yes, you're all super premium monitor buyers, and moments ago you were hollering the videocards are way too expensive and you cannot possibly afford them unless you are an idiot with too much money.
    I love this place, the people are so wonderfully honest.
    Reply
  • Makaveli - Thursday, May 03, 2012 - link

    1920x1200 is only rare now. i've gone thru enough monitor to know what I like and cheap 16:9 TN panels are not if its that good enough for you then enjoy.

    As for your other comment about v-sync and 4xAA Guess what some of us don't care to have 8x AA and 16XAF running all the time.

    I would rather play at 1200p at high settings with AA and AF off if it means playable fps and a enjoyable experience. This isn't [H] i'm not gonna spend $1000 on a Gpu so I can meet your approved settings for playing games dude. Get a clue!
    Reply
  • CeriseCogburn - Saturday, May 05, 2012 - link

    But you'll spend well over $400 for 11% more monitor pixels because "you'd rather".. "all of a sudden".
    LOL
    Way to go, thanks for helping me.
    Reply
  • anirudhs - Thursday, May 03, 2012 - link

    No...I couldn't afford one but I very much wanted to buy one. It is much prettier than 16:9 for workstation purposes. New ones are being released all the time. You just have to pay more, but its worth it. Reply
  • CeriseCogburn - Saturday, May 05, 2012 - link

    Oh, so someone who almost wants to be honest.
    So isn't it absolutely true a $500 videocard is much easier to buy when your monitor doesn't cost half that much let alone twice that much or $2,000 plus ?
    You don't need to answer. We all know the truth.
    Everyone in this thread would take a single videocard 680 or 7970 and a 1080P panel for under $200 before they'd buy a $450 1200P monitor and forfeit the 680 or 7970 for a $200 videocard instead.
    It's absolutely clear, no matter the protestations.
    In fact if they did otherwise, they would be so dumb, they would fit right in. Oh look at that, why maybe they are that foolish.
    Reply
  • InsaneScientist - Saturday, May 05, 2012 - link

    Oh? A little over a year ago, I had some money for an upgrade and I wanted to upgrade either my monitor or my video card.
    Now, I have (and play) Crysis, which can only now, just barely, be handled by a single card, so obviously I could have used the GPU upgrade (still can, for that matter). I also had a decent (though not great) 22" 1920x1200 monitor.

    However, despite that, I chose to buy a new monitor, and bought a used 3008WFP (30" 2560x1600). I have not regretted that decision one bit, and that was a lot more money than your $200-300 upsell for 1920x1200
    Now, admittedly, there were other factors that were a consideration, but even without those, I would have made the same decision. Putting money into a good monitor which I'll use ALL the time I'm on the computer vs. putting money into a good video card that I'll use some of the time is a no-brainer for me.
    If all of my electronics were taken and I were starting from scratch, I'd get another 2560x1600 monitor before I even bought a video card. I'd suffer through the integrated IGP as long as I needed.

    Now, that's my choice, and everyone's needs are different, so I wouldn't demand that you make the same decision I did, but, by the same token, you shouldn't be expecting everyone to be following the same needs that you have. ;)
    Reply
  • CeriseCogburn - Sunday, May 06, 2012 - link

    You've jumped from 1920 to 2560 so who cares, not even close.
    In your case you got no video card. ROFL - further proving my point, and disproving everyone elses who screamed if you get this card you have another two grand for monitors as well - which everyone here knows isn't true.

    I never demanded anyone follow any needs, let alone mine which are unknown to you despite your imaginary lifestyle readings, and obverse to the sudden flooding of monitor fanboys and the accompanying lies.
    Reply

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