Just tried with stock clocks and I see exactly the same, very strange. With my GT on the same rig I dont get this and as you would expect the second and third runs are higher than the first.
Is anyone else seeing this with a 9800GTX?
Cant imagine its a driver issue as the card is pretty much the same as an 8800GTS
05/04/2008 08:17:23 - Vista 64
Beginning Run #1 on Map-island, Demo-benchmark_gpu
DX10 1680x1050, AA=No AA, Vsync=Disabled, 64 bit test, FullScreen
Demo Loops=3, Time Of Day= 9
Global Game Quality: VeryHigh
==============================================================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 112.41s, Average FPS: 17.79
Min FPS: 10.82 at frame 1056, Max FPS: 21.26 at frame 856
Average Tri/Sec: -7941103, Tri/Frame: -446330
Recorded/Played Tris ratio: -2.05
!TimeDemo Run 1 Finished.
Play Time: 117.03s, Average FPS: 17.09
Min FPS: 10.82 at frame 1056, Max FPS: 21.26 at frame 856
Average Tri/Sec: -7398034, Tri/Frame: -432897
Recorded/Played Tris ratio: -2.12
!TimeDemo Run 2 Finished.
Play Time: 116.44s, Average FPS: 17.18
Min FPS: 10.82 at frame 1056, Max FPS: 21.26 at frame 856
Average Tri/Sec: -7468477, Tri/Frame: -434800
Recorded/Played Tris ratio: -2.11
TimeDemo Play Ended, (3 Runs Performed)
==============================================================
Completed All Tests
<><><><><><><><><><><><><>>--SUMMARY--<<><><><><><><><><><><><><>
05/04/2008 08:17:23 - Vista 64
Run #1- DX10 1680x1050 AA=No AA, 64 bit test, Quality: VeryHigh ~~ Overall Average FPS: 17.135