I got a little problem going on for a while now. after I got a new GPU, an Inno3D 570 GTX OC 780/1600/2000 (came with OC)
I've been experiencing FPS drops in games like Metro 2033, BF3, Crysis 2, GTA IV etc... games which require a high end to run smooth on high res on HIGH or VHIGH. even after lowering those to low, it have the same FPS drops...
The thing about my GPU is that it's called Gamer pack... and I noticed something wierd that I didn't expect, it has 1x8Pin connector and 1x6pin connector unlike Nvidia's geforce 570 which has 2x6 pins...
and last thing, I saw that the card may need 38A and above on the 12V rail or something like that, which I dont have, my PSU has 18A only.
I dunno if this is the correct forum to ask, forgive me if its not, and I would like to repost it somewhere else if required.
Most likely your ddr3 ram, ddr3 is used for lower resolution's about 800x579, if your thinking of fixing this i suggest getting ddr5 ram it should help you with the lag, ddr5 helps with the higher resolutions in the midrange.
Im starting to see, maybe i have no idea, this is abit over my head, im still in ITT Institute, Im starting to think your graphics card may be over heating, Also this maybe the stuipidest thing to say, but have you updated your drivers? Whats your graphic's card memory, Before i had my new computer i was useing a very old windows xp that seemed like it was in the stone age, it wasent updated, graphics sucked, every thing on it was useless, Any way i had massive fps drops with my windows xp due to either my graphics card, memory of ram, Hell even i couldent run CSS, So i think your gpu is over heating, What games are you haveing issues with?