Lightning Fast, and CPU Bound

The high performance of cards like the Radeon X850 XT Platinum Edition dictate that, even on today's fastest CPUs, they will be CPU bound at resolutions lower than 1600 x 1200. To prove this we've taken three GPU limited benchmarks, Half Life 2, Doom 3 and Far Cry, and showed their performance scaling vs. resolution using the X850 XT PE on an Athlon 64 4000+:

So what does this tell us? It tells us that these high end cards are CPU bound up until 1280 x 1024. It is only at 1280 x 1024 that the X850 XT PE becomes GPU limited and even more so at 1600 x 1200. It's for this reason that we conducted all of our performance tests today at 1600 x 1200.

ASUS nForce4 A8N-SLI Deluxe Motherboard
AMD Athlon 64 4000+
1GB Corsair DDR400

NVIDIA ForceWare 67.02 Drivers
ATI Beta Catalyst Drivers 8.08-041111a-019256E (no Catalyst version has been assigned to this package yet)
Windows XP Service Pack 2 with DirectX 9.0c

All performance tests were run at 1600 x 1200, some benchmarks were also run at 1600 x 1200 with 4X AA and 8X AF enabled.

To continue our recent trend of looking at head to head comparisons between GPUs first and then looking at the broad spectrum of performance we begin by evaluating the impact of each one of ATI's new GPUs individually starting with the flagship, the Radeon X850 XT Platinum Edition.

The New ATI Lineup ATI's Radeon X850 XT Platinum Edition
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  • IdahoB - Wednesday, December 1, 2004 - link

    I just hope that the large increase in the variety of cards means that a couple of them which actually be available to buy. It seems that they have more model numbers than physical stock these days. I would have loved a X800 of some description but couldn't find one anywhere in the UK so settled for the still slightly unreliable 6800GT.
  • Araemo - Wednesday, December 1, 2004 - link

    #7: At least it's less confusing than intel's new numbering system. yeesh.
  • StrangerGuy - Wednesday, December 1, 2004 - link

    X800SE,
    X800,
    X800 Pro,
    X800 XL,
    X800 XT,
    X800 XT PE,
    X850 Pro,
    X850 XT
    and X850 XT PE

    9 models of high-end ATI cards? Oh man that is really confusing even for enthusiasts and geeks...
  • Araemo - Wednesday, December 1, 2004 - link

    #4 The 'video processing unit' isn't for playback, it's for encode, and as far as I'm aware, ATI's non-AIW cards don't have hardware encode either.
  • Araemo - Wednesday, December 1, 2004 - link

    I guess my 9700 Pro is safe for another 8-12 months...


    hopefully.
  • LoneWolf15 - Wednesday, December 1, 2004 - link

    No-one is mentioning the one thing ATI almost certainly has in its favor: video playback. The GeForce 68xx's "video processing unit" still does not have drivers that take advantage of it, whyever the case may be. ATI has always had a strong tradition of video playback performance. I'd really like to see Anandtech bench CPU usage with these cards with 1080 HD .WMV files, as well as with MPEG-2/MPEG-4. This would be truly useful for enthusiasts and help round out our buying decisions.
  • gibhunter - Wednesday, December 1, 2004 - link

    Ati is looking desperate with this release. Their fastest part is what, 3% faster then their previous champ. On top of that, you still can't find these fastest cards. If they were trying to confuse the customer, they might as well consider it mission accomplished.

    Personally, I'd just stick with 6800GT and have an upgrade path with an SLI Nforce4 board and another 6800GT in the future.
  • segagenesis - Wednesday, December 1, 2004 - link

    The X850 Pro is somewhat disappointing vs. its competition, does nVidia even have refresh parts planned for winter? I was looking at the $400 price range myself :(
  • Cat - Wednesday, December 1, 2004 - link

    If it means more cards are available for less cost, than I'm all for this. It's still kinda disappointing, though.

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