Martin 71 said:
so.. the lower the reso is, the more work the cpu does?
Actually, the lower the res the less work the GPU has to do. This makes it able to pump out more fps then at a higher res. So the processor has to be able to keep up with the higher fps or it will bottleneck the GPU.
You should look into a Phenom X6 that just came out, maybe wait for benches. If they're better clock for clock compared to the old Phenom II X4s then you could get the lower end one for $200 and overclock it