NVIDIA ION Linux Performance
The results for Doom 3 were slightly higher, but still not playable at any modest resolution.
While Lightsmark is just a technology demo within the Phoronix Test Suite, its results were better than Doom 3 and ET: Quake Wars. Starting at 800 x 600 the ION put out nearly 60 frames per second but that recessed to about 20 FPS when running at the 1920 x 1200 resolution.