I chose four DX10 games to test our three cards, Crysis, Call of Juarez, PT Boats: Knights of the Sea, and Company of Heroes-Opposing Forces.
Crysis-the long awaited FPS, successor to Far Cry, is a really demanding game on a system.requiring a modern processor, stable memory, and a strong video card for any kind of playability. It plays well on 2 gigs of system memory, but prefers 4 gigs. It will usually BSOD a system with the least instability, and it is one of the main stability tests I use when overclocking. I used the Crysis Benchmark written by MadBoris Veriga. Settings were: Medium, GPU Benchmark, DX10, no AA, 1280 x 1024 resolution.
The X2 performed well here, with a 73% FPS increase over the regular 3850. We'll see how the X2 performs with AA a little later, I decided to do antialiasing testing in a separate section, since the regular Radeon HD 3850 really doesn't perform in an AA environment.
Call of Juarez is a DX10 FPS in an "old west" setting. It really has some amazing detailed graphics, making use of the latest processes and physics, and DX10. I used the standalone demo benchmark, settings were: Balanced, no AA, 1280 x 1024.
I don't know why the X2 did so poorly on this game, or at least I'd consider it poorly, as it did no better than the HD 3850.
PT Boats: Knights of the Sea is a water-based game with some really great graphics. There are constant camera angle changes, and a weaker card really suffers there with a lot of momentary FPS events. Here I also used the standalone demo benchmark, and settings were: High, AA x 2, 1280 x 1024. I did use AA here, the game looks so much better with it.
Once again, the X2 didn't do that great, though it did perform better than the HD 3850. Trying again with no AA did increase the spread.showing that the X2 probably will suffer when using antialiasing.
Company of Heroes: Opposing Fronts is the second version of a really great RTS. It wasn't originally released with DX10, but was added in a patch. Though not as hard on a system as the other DX10 selections, and easily playable with midrange cards, it does look awesome with a high performance rig. I used the in-game performance test, settings were: High, no AA, 1280 x 1024.
Finally, more predictable results. The X2 performed nearly as well as the 9800GTX. As I expected, gaming results were similar to the artificial benchmarks. Now for some older games.