I wanted to post up some benchmark numbers for comparison.
Coming directly from This post

Sorry if you don't think this is Cblog material. To be honest though, I've seen worse entries.

You can add your own results, if you want to.
The benchmark file can be found in C:\Program Files\Electronic Arts\Crytek\Crysis SP Demo\Bin32\Benchmark_GPU.bat

The results can be found in C:\Program Files\Electronic Arts\Crytek\Crysis SP Demo\Game\Levels\island\benchmark_gpu.log

Test rig:

ASUS Striker Extreme Nforce 680I
Intel Core 2 Extreme QX6700 Processor - 2.66GHz, 8MB Cache, 1066MHz FSB
Mushkin XP2 PC2-8500 2GB 2X1GB
EVGA E-GEFORCE 8800 GTX 575MHZ 768MB
Western Digital Raptor X 150GB in Raid0
Samsung SyncMaster 226BW 1680x1050 native
Windows Vista Home Premium, (legit) patched to the tits.

Benchmarking anomalies:

I let the test run through twice each time, when the demo starts the average FPS starts at 0 and ramps up from there. At the end of the Demo and into the second loop, there is a whiteout effect that is easy to render(100~fps), altering the Average FPS from the outset of the second test.

Other information:

Tests were all done at native resolution 1680x1050
Directx10 was used for all tests,
Video drivers are the 169.01 beta. There are a couple of earlier results from my testing you can compare the 163.69 drivers against.

Testing results.
(simplified below)

=====================Single Card, Very high, 163.69=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 190.27s, Average FPS: 10.51
Min FPS: 5.55 at frame 138, Max FPS: 13.25 at frame 67
Average Tri/Sec: -4052093, Tri/Frame: -385503
Recorded/Played Tris ratio: -2.38
=====================Single Card, High, 163.69=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 89.07s, Average FPS: 22.45
Min FPS: 14.54 at frame 137, Max FPS: 28.59 at frame 1760
Average Tri/Sec: -16704094, Tri/Frame: -743903
Recorded/Played Tris ratio: -1.23
!TimeDemo Run 1 Finished.
Play Time: 85.26s, Average FPS: 23.46
Min FPS: 13.60 at frame 1945, Max FPS: 28.59 at frame 1760
Average Tri/Sec: -17122150, Tri/Frame: -729936
Recorded/Played Tris ratio: -1.26
=====================Single Card, Very high 169.01=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 128.48s, Average FPS: 15.57
Min FPS: 10.28 at frame 138, Max FPS: 18.61 at frame 868
Average Tri/Sec: -7235383, Tri/Frame: -464808
Recorded/Played Tris ratio: -1.97
!TimeDemo Run 1 Finished.
Play Time: 125.01s, Average FPS: 16.00
Min FPS: 10.28 at frame 138, Max FPS: 19.07 at frame 870
Average Tri/Sec: -7286292, Tri/Frame: -455427
Recorded/Played Tris ratio: -2.01
=====================Double card, Very high 169.01=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 110.43s, Average FPS: 18.11
Min FPS: 9.01 at frame 145, Max FPS: 25.23 at frame 172
Average Tri/Sec: -8137320, Tri/Frame: -449306
Recorded/Played Tris ratio: -2.04
!TimeDemo Run 1 Finished.
Play Time: 98.49s, Average FPS: 20.31
Min FPS: 9.01 at frame 145, Max FPS: 25.55 at frame 87
Average Tri/Sec: -8950239, Tri/Frame: -440760
Recorded/Played Tris ratio: -2.08
=====================Double Card, High, 169.01=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 58.41s, Average FPS: 34.24
Min FPS: 14.98 at frame 143, Max FPS: 46.48 at frame 85
Average Tri/Sec: -26694134, Tri/Frame: -779627
Recorded/Played Tris ratio: -1.18
!TimeDemo Run 1 Finished.
Play Time: 48.77s, Average FPS: 41.01
Min FPS: 14.98 at frame 143, Max FPS: 60.06 at frame 102
Average Tri/Sec: -32065622, Tri/Frame: -781955
Recorded/Played Tris ratio: -1.17
=====================Single Card, High, 169.01=================
TimeDemo Play Started , (Total Frames: 2000, Recorded Time: 111.86s)
!TimeDemo Run 0 Finished.
Play Time: 70.80s, Average FPS: 28.25
Min FPS: 18.51 at frame 155, Max FPS: 35.69 at frame 992
Average Tri/Sec: -28421416, Tri/Frame: -1006156
Recorded/Played Tris ratio: -0.91
!TimeDemo Run 1 Finished.
Play Time: 66.96s, Average FPS: 29.87
Min FPS: 18.51 at frame 155, Max FPS: 37.60 at frame 79
Average Tri/Sec: -29793620, Tri/Frame: -997549
Recorded/Played Tris ratio: -0.92

Simplified

That's a bit hard to look at and gather information from. Posted for the enthusiasts. Below we'll cut the extras out, and what ill focus on is the Average FPS statistic

First, lets have a look at what the difference between 163.69 and 169.01 is.

Single Card, Very high, 163.69
Average FPS: 10.51

Single Card, Very high 169.01
Average FPS: 15.57
Average FPS: 16.00

So a 5 FPS bump.. not bad, but its still sub 30fps , which is abysmal. What happens if we lower all settings to High?

Single Card, High, 163.69
Average FPS: 22.45
Average FPS: 23.46
Single Card, High, 169.01
Average FPS: 28.25
Average FPS: 29.87

Ah, nice. We're getting closer to 30 now and we see the 5 fps increase again. Keep in mind that these results are all from a single card. And im out of numbers for the old drivers. So why dont we investigate what a SLI setup will do in these benchmarks.

Single Card, Very high 169.01
Average FPS: 15.57
Average FPS: 16.00
Double card, Very high 169.01
Average FPS: 18.11
Average FPS: 20.31

Not that impressive to be honest a 16.3% increase on the average FPS on the first run through, and a 26.9% increase the second run. and still Sub 30 , which is again , abysmal. How about we lower the settings down again , like we did in test 2, and see if that helps get us closer to 30 fps.

Single Card, High, 169.01
Average FPS: 28.25
Average FPS: 29.87
Double Card, High, 169.01
Average FPS: 34.24
Average FPS: 41.01

Ah! here's what we've been looking for! 21.2% increase in Average FPS the first run through, and 37.2 increase on the second.

Summary

Takes quite a bit of horsepower to get to this point. Is it worth it? I'd like to think so, we (enthusiast) gamers finally have a game that can put our computers through the paces we designed them for. Maybe 3 or 4 years down the road the average computer user will be able to enjoy this game at 60FPS as well.

Just wanted to toss a couple more numbers in here to contrast the diffrence between the two setups

Single card, very high, 163.69 =10.51
Double card, high, 169.01 =41.01

Thanks for reading, or skipping to the bottom and reading the thanks :)



Bonus Kun presents a quick CPU benchmark! :)

Double card, 169.01
Very high - Average FPS: 17.95
High -Average FPS: 38.89