At 1280x1024 all of the video cards were above 30FPS with the overclocked XFX GeForce 8800 Ultra XXX Edition video card leading the pack. The battle between the GeForce 8800 GTS 640MB and the ATI Radeon 2900XT was close with just 4.5 frame per second difference between the two cards. The just released Forceware 158.45 and CATALYST 7.5 drivers were both able to render everything correctly. Let's see what happens when we enable 8x AA.
With the resolution still set to 1280 x 1024 we enabled 8x AA on all the cards to see how they do with antialiasing on. In the options menu on NVIDIA G80 series graphics cards you get to pick between Coverage Sampled AA (CSAA) and Quality Antialiasing (QAA). CSAA produces antialiased images that rival the quality of 8x or 16x MSAA, while introducing only a minimal performance hit over standard (typically 4x) MSAA. It works by introducing the concept of a new sample type: a sample that represents coverage. This differs from previous AA techniques where coverage was always inherently tied to another sample type. Basically it allows developers to use fewer Color/Z/Stencil samples than standard MSAA, and as a result the game will run faster at the cost of some quality. We ran the CoH benchmark with the 8Q setting, not the 8x CSAA setting because the 8Q setting is equivalent to ATI’s 8x MSAA in terms of quality. It seems here that having 8x AA enabled on both series cards turned out to reduce performance by 10 FPS across the board.
Let's turn up the resolution...
At 1600 x 1200 we see both the GeForce 8800 GTS 640MB and the Radeon 2900XT drop below 30FPS with no AA enabled. It should be noted that testing was done on an AMD Athlon 64 X2 5600+ processor, which some might think limit the performance levels. On an Intel Core 2 Duo X6800 processor the GeForce 8800 GTS 640MB scored 32.6 FPS, which might imply that Company of Heroes could be shader bound and not CPU bound. This also could explain why the performance increases so much between each GeForce 8 series video card.
With 4x Antialiasing enabled at 1600 x 1200 all the cards take a performance hit, but just slightly. It was enough to make the game not playable on the GeoForce 8800 GTS and Radeon 2900 XT as both averaged in the mid 20's with the lows well into the low single digits
|The Company of Heroes DirectX 10 patch is finally here! The ATI Radeon HD 2900 XT doesn't have enough muscle to beat out the NVIDIA GeForce 8800 GTS 640MB in Company of Heroes when using the latest drivers from both companies.|