Performance in First-Person 3D Shooters
This game doesn’t support display resolutions of 16:10 format, so we use a resolution of 1920x1440 pixels (4:3 format) instead of 1920x1200 for it.
The Gigabyte cards are considerably slower than ATI’s reference samples, especially the senior GV-RX387512H. However, their performance is satisfactory in every mode, including 1920x1440, due to the rather low system requirements of the game. On the other hand, the RV670-based cards are all inferior to the GeForce 9600 GT. This must be due to their less efficient texture processor architecture.
BioShock doesn’t support FSAA when running in Windows Vista’s DirectX 10 environment. That’s why we benchmarked the cards without FSAA.
The game runs on Unreal Engine 3 using math1ematics-heavy shader effects. That’s just the right environment for ATI’s solutions although at low resolutions the Nvidia GeForce 9600 GT is only overtaken by the overclocked GV-RX387512H. The GV-RX385256H delivers acceptable performance at resolutions up to 1600x1200/1680x1050 inclusive notwithstanding the difference from the reference sample in memory frequency.