I don't know what's going on. I USED to be able to run this game on high with great FPS, but I stopped playing for a while, and all of a sudden my FPS is just horrible.
AMD Phenom II 955 x4 @ 3.84 GHz
8 GB RAM
Windows 7 64 Bit
nVidia GTX 560 Ti EVGA Superclocked
750W Corsair Power Supply
BIOSTAR T890FXE Motherboard
I blew out the dust in the system, what I'm suspecting is either the power supply or the Graphics card are just shot. I'm not certain about the best way to go about monitoring performance. I alt-tabbed during BF3 and my processors were all at like 80%. My performance in SWTOR also sucks but I'm pretty sure that's SWTOR being SWTOR. Dota2 runs fine all max, but it's not exactly intensive.
Any advice? Any free benchmarks that will help with my diagnosis? I'm ripping out my hair here, I built this PC around running BF3, and it used to for the first few months. Something must have just gone bad. I was considering sending my Graphics Card in (yay EVGA warranty) but I don't want to be out of commission only to find out I'm an idiot who misdiagnosed the problem.
::EDIT:: I have driver-swept all of the Graphics Card drivers and rolled back to the drivers that were released with BF3 (the ones with which I was stable)
When you turn down settings in BF3, does performance improve? Do you have any background processes running now that you didn't before? Have you tried using Driver Sweeper, then reinstalling drivers? Have you checked your CPU and GPU idle and load temperatures?
Turning down settings: No improvement
Background Processes: No, fewer, actually
Driver Sweeper: Yes, I have done it multiple times with different driver version replacements
GPU Load temperature is at 50C and usage bounces between 65 and 99%
I had a problem with GTA 4 and BF3 pretty similar as yours. I had "enough" PC to run it at medium sentings but i couldnt even run it at the lowest. What was my problem? Patch isues. When the Patch 1.0.7 in GTA4 came out, it fixed my problem, as the lastest patch in BF3.
Maybe you should install a fresh Windows 7, get all newer drivers and update Directx and PhysX. It also helped me getting better performance.