Is overclocking of 8800 GTX useful when aim is to play Crysis, UT3, et

Well OC'ng a 8800GTX will make a difference in how much FPS u get, and in some games (it will help u to run the game smoother) but not for all games
for example for Crysis it will help but for UT3 u wont see a noticeable difference because will handle it very well even @ 2048x1536

Completely worth it , Gtx has got at least a good 50mhz core and a 100mhz memory you can push out on stock and before you think about changing voltage.

on my 8800gtx, at the settings i use, crysis climbs from being unplayable to playable when i overclock as much as possible. this equates about a 8 fps increase. also, ive noticed maps/textures load faster when the card is overclocked. make sure you use rivatuner so you can fine tune the frequencies of your shaders in addition to your memory and core clock.

well, 'unplayable to playable' is perhaps too black and white a phrase for me to use, and it is subjective.

But yes, I went from about 24 to 32 fps when everything is fine tuned. And this was benchmark, not entirely accurate. Actual in game performance probably more around 6 fps increase, but at these low framerates, that's pretty significant.

wow systemlord, how did you get your shader clock so high? Some sort of aftermarket cooling i'm guessing?

overclocking your videocard makes for a very noticeable increase in performance especially on games where the videocard struggles to run

the key is to first overclock the GPU until you reach it's max overclock, then overclock the memory until you reach it's max overclock

overclocking the GPU offers more performance improvement than overclocking the memory

but it is good to overclock both

(when you feel that you have reached your max overclock, you will need to go a lot of testing to make sure the card is 100% stable, for that I recommend running games like FEAR (you can get fear combat for free) and second life

second life is a great game for testing videocard stability

the second life game engine is unstable at best.

when I overclocked many different geforce 7 series cards, they showed 100% no distortions of games like crysis beta, elder scrolls oblivion and other games like that, but when running second life, the screen was plagued with distortions like prim objects from someones leg stretching across the screen

and through that, I lowered the overclocks for that I lowered the memory to stock to see if it would stop, and it didn't so i brought the memory speed back to the last overclocked speed then started to lower the gpu clock 1MHz at a time then running second life for 20 minutes to see if it was stable

then after a few hours of testing, I was able to type up a report and and give it back to my friends with their card so they will know which rivatuner settings to use

PS for crysis, the area where you notice the overclock helping the most, is when you are in the alien base in the mountain

those levels is where you really see the difference the overclock made.