To test Arma2, we carry out a well-defined movement on a saved game. We used the high graphics setting in the game (visibility at 2400m) and pushed all the advanced options to very high.
ArmA 2 allows you to set the display interface differently to 3D rendering which is then aligned with the display via a filter. We used identical rendering for both.
The antialiasing settings offered for this game aren’t clear and are different between the AMD and NVIDIA cards. 3 modes are offered by AMD: low, normal and high. These correspond to MSAA 2x, 4x and 8x. With NVIDIA things get more complicated:
- low and normal = MSAA 2x
- high and very high = MSAA 4x
- 5 = MSAA 4x + CSAA 8x (called 8x in the NVIDIA drivers)
- 6 = MSAA 8x (called 8xQ in the NVIDIA drivers)
- 7 = MSAA 4x + CSAA 16x (called 16x in the NVIDIA drivers)
- 8 = MSAA 8x + CSAA 16x (called 16xQ in the NVIDIA drivers)
Patch 1.5 was installed.
Strangely, performance actually drops slightly across the Radeon range with the latest drivers. The Radeon HD 6900s don’t do so well here and finish behind the Radeon HD 5870 and 6870.
The GeForces have a small advantage; with their CPU limitation slightly lower.