Hi, I use a little utility called Fraps. FRAPS show fps, record video game movies, screen capture software Again its free and it lets you benchmark, record movies of your gameplay and also gives you a running frames per second counter (this appears in the corner of the screen). I'm on 1024x768 and get between 25 at busy moments and 60 to 70 at quiet moments. I have run the game at 1280x1024 without much difference to FPS. Why your getting such low frames per second is weird. Which 8800 do you have? The 320MB version like me or the 640? What settings are you running Crysis at? Do you have AA or AF enabled? I run Crysis with all the settings on high apart from Textures and Object Quality which I keep on medium as you can't really tell the difference anyway (visually). If these settings are set to high then they are real frame rate killers. I do not run any AA or AF either as again I feel they are not needed. I also use Rivatuner 2.06. If you've not heard of this app, it can control the fan speed as well as overclock your card ( I have mine set to 600MHz on the core and 900MHz on the memory). Another handy tool is that you can check your card temperature, which, again if running too hot will cause problems. You can get Rivatuner here:
RivaTuner v2.06 download from Guru3D.com

As for overclocking, I think we have already discovered you PSU might be the cause of the problems. Another cool utility for testing when overclocking (along with memtest,which I told you about earlier) is PRIME95. This is a utility to find prime numbers but it also contains a torture test. This test is used by overclockers to see if the machine is stable after overclocking, get it here
Prime95 Download - Softpedia
it is a really cool utility but don't forget to read the text supplied.
After reading your last post again I would say that its your PSU for sure. All those USB items, big graphics card and a quad core chip is going to suck power like crazy. Also you should easily be getting at least smiliar frame rates as me... Just out of interest what do you score in 3d 06? (with Vista).


Just thought I'd mention.. Have you visited the Crysis forums? Lots of tips on running the game there too (my username is 'burninblade' so say hi if you drop in), you can access it here:
Crysis® - Electronic Arts UK Community

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