I just bought a AMD 3.6 ghz quad core cpu upgrading from a anthlon x2 64 6000+ i was wondering if this would help me a lot in graphics on BF3 here are my other specs:
Your motherboard will not support AM3+. You are in a tough spot I think if you got to 8 gigabytes that would be the best upgrade you could get with your current setup. However, if you were to upgrade being someone who has been a AMD fanboy back in the day of socket 939 I'd go with sandy bridge or wait for ivy bridge coming up soon.