The Test

As we don’t have a true reference card our testing methodology has been slightly tweaked. We’ve tested the AMP at both GTX 550 Ti reference clocks and at its factory overclock for all metrics, however power/noise/temperature data is going to significantly vary from manufacturer to manufacturer.

For drivers NVIDIA is pairing ForceWare 267.59 with the card – these drivers are just incremental bugfixes, SLI profiles, and product additions over the earlier Release 265 series drivers and performance is unchanrged for other cards from earlier results.

Meanwhile for the AMD cards we’re using the Catalyst 11.4 preview for the 5770 and 6800 series. While the bulk of the performance improvements in these drivers (in what AMD is now calling Project Mjölnir) are for the new Cayman/VLIW4 architecture, Barts/Evergreen/VLIW5 performance has ticked up a couple percent here and there, further raising the bar that NVIDIA needs to cross.

CPU: Intel Core i7-920 @ 3.33GHz
Motherboard: Asus Rampage II Extreme
Chipset Drivers: Intel 9.1.1.1015 (Intel)
Hard Disk: OCZ Summit (120GB)
Memory: Patriot Viper DDR3-1333 3 x 2GB (7-7-7-20)
Video Cards: AMD Radeon HD 6990
AMD Radeon HD 6970
AMD Radeon HD 6950 2GB
AMD Radeon HD 6870
AMD Radeon HD 6850
AMD Radeon HD 5970
AMD Radeon HD 5870
AMD Radeon HD 5850
AMD Radeon HD 5770
AMD Radeon HD 4870X2
AMD Radeon HD 4870
NVIDIA GeForce GTX 580
NVIDIA GeForce GTX 570
NVIDIA GeForce GTX 560 Ti
NVIDIA GeForce GTX 550 Ti
NVIDIA GeForce GTX 480
NVIDIA GeForce GTX 470
NVIDIA GeForce GTX 460 1GB
NVIDIA GeForce GTX 460 768MB
NVIDIA GeForce GTS 450
NVIDIA GeForce GTX 295
NVIDIA GeForce GTX 285
NVIDIA GeForce GTX 260 Core 216
Video Drivers: NVIDIA ForceWare 262.99
NVIDIA ForceWare 266.56 Beta
NVIDIA ForceWare 266.58
NVIDIA ForceWare 257.59 Beta
AMD Catalyst 10.10e
AMD Catalyst 11.1a Hotfix
AMD Catalyst 11.4 Preview
OS: Windows 7 Ultimate 64-bit
Meet The Zotac GeForce GTX 550 Ti AMP Edition Crysis: Warhead
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  • Ryan Smith - Tuesday, March 15, 2011 - link

    Our experience with desktop Linux articles in the past couple of years is that there's little interest from a readership perspective. The kind of video cards we normally review are for gaming purposes, which is lacking to say the least on Linux. We could certainly try to integrate Linux in to primary GPU reviews, but would it be worth the time and what we would have to give up in return? Probably not. But if you think otherwise I'm all ears.
  • HangFire - Tuesday, March 15, 2011 - link

    All I'm asking for is current and projected CUDA/OpenCL level support, and what OS distro's and revisions are supported.

    You may not realize it, but all this GPGPU stuff is really used in science, government and defense work. Developers often get the latest and greatest gaming card and when it is time for deployment, middle end cards (like this one) are purchased en masse.

    Nividia and AMD have been crowing about CUDA and OpenCL, and then deliver spotty driver coverage for new and previous generation cards. If they are going to market it heavily, they should cough up the support information with each card release, we shouldn't have to call the corporate rep and harangue them each and every time.
  • Belard - Wednesday, March 16, 2011 - link

    Someone who already has a GF450 would be a sucker to spend $150 for a "small-boost" upgraded card.

    When upgrading, a person should get a 50% or better video card. A phrase that never applies to a video card is "invest" since they ALL devalue to almost nothing. Todays $400~500 cards are tomorrows $150 cards and next weeks $50.

    So a current GF450 owner should look at a GF570 or ATI 6900 series cards for a good noticeable bump.
  • mapesdhs - Wednesday, March 16, 2011 - link


    Or, as I've posted before, a 2nd card for SLI/CF, assuming their mbd
    and the card supports it. Whether or not this is worthwhile and the
    issues which affect the outcome is what I've been researching in recent
    weeks. Sorry I can't post links due to forum policy, but see my earlier
    longer post for refs.

    Ian.
  • HangFire - Friday, March 18, 2011 - link

    I wasn't really suggesting such an upgrade (sidegrade). I was just saying that each generation card at a price point and naming convention (450->550) should have at least a little better performance than card it replaces.
  • Calabros - Tuesday, March 15, 2011 - link

    tell me a reason to NOT prefer 6850 over this
  • 7Enigma - Tuesday, March 15, 2011 - link

    So basically this is my 4870 in a slightly lower power envelope with DX11 features. I'm shocked the performance is so low honestly. Thanks for including the older cards in the review because it's always nice to see I'm still chugging along just fine at my gaming resolution (1280X1024) 19".
  • 7Enigma - Tuesday, March 15, 2011 - link

    Forgot to add, which I bought in Jan 2009 for $180 (Sapphire Toxic 512meg VaporX, so not reference design)
  • mapesdhs - Tuesday, March 15, 2011 - link


    You're the target audience for the work I've been doing, comparing cards at
    that kind of resolution, old vs. new, and especially where one is playing older
    games, etc. Google for, "Ian PC Benchmarks", click the 1st result, then select,
    "PC Benchmarks, Advice and Information". I hope to be able to obtain a couple
    of 4870s or 4890s soon, though there's already a lot of 4890 results included.

    Ian.
  • morphologia - Tuesday, March 15, 2011 - link

    Why in the name of all that's graphical would you use this Noah's Ark menagerie of cards but leave out the 4890? It doesn't make sense. If you're going to include 4000 series cards, you must include the top-of-the-line single-GPU card. It's proven to be quite competitive even now, against the lower-level new cards.

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