32-bit vs. 64-bit 4xAA/8xAF Training

Far Cry – Direct3D

Notes

Even under 4xAA/8xAF, the same trends we saw with the NVIDIA GPUs continue to hold true. The GeForce 6800 and 6600 cards run slightly faster in 32-bit Windows XP than in Windows x64, although at higher resolutions the performance in either environment is the same regardless of the setup tested.

ATI cards on the other hand show nice performance improvements when migrating over to Windows x64. The X800 XL and X850 PRO’s performance improves by 8% at 1024x768, while the X800 and X700 PRO’s performance improves by a whopping 10% at the same resolution. We also see gains for the X850 XT PE, although it’s a little bit slimmer at 7%.

The training demo is an outdoor level however, which saw slimmer gains when shader models 2.0b and 3.0 were added to Far Cry 1.3 than indoor levels such as volcano. With that in mind, let’s see what happens when we go indoors.