Here's a tentative list of Endzone's system requirements.
HDD: 3GB (this will likely increase quite a bit as the beta goes on and we add more stadia, teams and customisation options)
GPU: A GPU that supports Shader Model 3 and has at least 512MB VRAM. Anything on this list, or faster, should provide a playable framerate at least at the minimum resolution.
NVIDIA: 6800 Ultra, 7600 GT, 7800 GS, 8600 GS, 8600 GT (GDDR3), 9500 GT (DDR2)
NVIDIA Mobile: 7800 GTX, 7900 GTX
AMD: X800 XT (& PE), X850 XT (& PE), X1650 XT, X1800 GTO, HD 2600 XT, HD 3650 (DDR3), HD 3670
AMD Mobile: X1900, 3670
AMD Integrated: 6520G, 6530D, 7480D
Intel Integrated: Intel HD Graphics 4000
We'd really appreciate it if you could post your system specifications and how well the game is running for you in this thread.