3DMark05: CPU Test
It may not be an actual game, but 3DMark05's built-in CPU test is a DirectX-based game engine metric that's useful for comparing relative performance among similarly equipped systems. This test consists of two different 3D scenes that are generated with a software renderer, which is very much dependant on the host CPU's performance. This means that the processing loads normally reserved for your 3D accelerator are instead sent to the host processor. The number of frames generated per second in each test are used to determine the final score.
3DMark05's CPU performance module is yet another multi-threaded benchmark that benefits from the capabilities of a multi-core or HyperThreading enabled CPU, hence the strong performance of the Pentium Extreme Edition 840 and the Athlon 64 X2 4800+. If you look past those results though, you'll see that the Athlon 64 FX-57 outpaced all of the other single core processors by margins ranging from 1.6% to 19.5%.