The 6800GT core is proving a great little pixel pusher.
In fact, here is something to think about, the RADEON X850 XT runs at 520MHz with 16 pixel pipelines, which gives it 8.3 gigapixels per second of fillrate. The MSI NX6800GT runs at 350MHz with 16 pipelines, which gives it 5.6 gigapixels per second of fillrate. Yet the MSI NX6800GT matches the RADEON X850 XT in DOOM 3 and Chronicles of Riddick. Just goes to show it is indeed not always about clock speeds, pipelines, and fillrate. The architecture of a GPU can make a huge difference in games.
[The review]