well a lot of crysis can be corrected using driver level tweaks, that is, atleast for me. I run the sp demo of crysis on my rig: c2d 3.2ghz and x1950xt 670mhz and it took some tweaking but everything runs fine.
c2d e4300 @ 3.19ghz
ati x1950xt @ 670mhz gpu 1.47vGpu 1880mhz mem DX9
2gb DDR2 supertalent 2x1024 @ 900mhz 4-4-4-12
gigabyte ga965-ds3
win xp pro sp2 dx9
I use ati traytools & ati-tool keeping the hotkey poller on. I run the ati overdrive 3 utility function built into the ccc to put the gpu to 676 mhz, this apparently has the greatest effect increasing the fps of the game. I also checked the affinity of my crysis.exe process in taskmgr to be sure it was using both cores. - it really doesn't matter much, but may give u 2 -3 fps more given that crysis.exe is really only using 36 % of 1 core in the first place. I also keep my fan speed on 100% to keep cool the gpu because of the increased vgpu, but stock i only upped it .025 volts from 1.45 to 1.475. it still needs 100% fan speed on the stock cooler, (which i reseated with some AS5 when i bought the card) to keep the load temp under 80 deg celcius.
i put the mem up using ati tray tools and when i game in 3d, i keep the card running on 3d clocks until i quit gaming. 2d mode is 599mhz core.
From within ati tray tools i select direct3d options and put my texture and mipmap to Quality instead of "high quality" because it doesnt make much visual difference to texture quality ingame (even on high qual textures) but saves you 4-5fps avg. i keep the catalyst A.I. on low, i read that it works better on crysis low, but to tell you the truth it maybe gives me .5 a frame better than 'high' setting. using ati-tool i select x1x00 overclocking and enable 3d clocks and also geometry instancing. i have some pictures of the incredible visual quality if anyone would like to see it.
i only play on a 17inch crt, but i like it - its a trinitron. and i run crysis at 1024 by 768 with no AA or AF (duh) i wish i had hardware that could handle it in crysis. I oc'd my gfx card with a voltage increase and my cpu to the point to where its stable within crysis for an unlimited amount of time. It works good. and you can compare your frame rates with mine if you wish.
Oh one more thing. - i used that hack to run the dx10 features of crysis, - the light shining thru the palm leaves from the sun, the real time day - night cycle, and the vector motion blur, and the water reflections. INCLUDING access to all the 'very high' settings in the demo, on my dx9 card from within XP. link -
http://www.ngohq.com/news/1249...igh-settings-hack.html
So feel free to compare your setup with mine, i would like to know how 8800gt's and gts compare to mine with a similar cpu, but from what ive gathered from reading some forums is that its not that much higher in performance levels. (although if i had that card i would have crysis running fast as lightning with a little tweaking).
With the very high dx10 settings i run at about 15-20 fps avg at 1024 res. But the biggest impact to my hardware is shader & postprocessing. i like the postprocessing so i keep it on high.
For comparison purposes, i run everything on 'very high' with shaders & sound on "med'
for the most part it stays around 40-45fps dipping down to as low as 23 at the part where that soldiers body vaporizes in the tree.