Need recommendations

Hello guys i dont understand to much in hardware but can any one tell me on what settings could i run Bf3 with a hd 6750 1gb gddr5 dx11 with a cpu of intel core 2 duo e8400? right now i have a 9500gt so if the other gc isnt really recommended can some one recommend me a better gc with about the same price maybe abit higher or lower, thank you for your time.

The 6750 is pretty good GPU for the $. The 6770 would be the logical upgrade for about $10-20 more, but I don't know if that fits within your budget. I'm not sure what resolution your gaming under, but I'd expect that you should be able to play BF3 with decent settings up to 1680 x 1050 or so. It'll dpend on how much RAM you have too and what resolution your gaming under.

and 1240x800 will do

No idea.... how do i check it. btw will it be fine on 1440x900 too?

i just found out my proccesor isnt good enough for that GPU i think mine is 500w do you have any recommendation for a gpu around the same price maybe abit lower ?

e8400 is a good CPU to have. Not sure why you think it isn't good enough. The GPU's I listed above are all good ones. Did you have some plans change??

500W power supply is more than enough for either hd6770 or GTS 450..

Well, recommended PSU for GTS 450 is 400W, and for HD 6770 its 450W. Of course though, if he has a crap PSU which cannot deliver enough power - it will not run - you are right, it needs to be a quality PSU.

how do i check that lol?

you can run the 6770 unless your psu is really crappy, just check the brand and maybe also the amps on the 12V (s).