Re: Looking for a new processor.
I would recommend getting an graphics card first. The games might put too much work on the CPU since it has to do processing, and graphics at the same time. Graphics card has its own processor, so it takes work off of the CPU.
When I switched from onboard to graphics card, I was able to play games on med/high settings as to when I could only go on the lowest with onboard. Its highly recommended to get a graphics card if you plan to use your computer for gaming.
Desktop -Cooler Master NV690/AMD Phenom II X4 965 BE/MSI 880G-E45 Motherboard/2 x 2GB DDR3 G.Skill Ripjaws X/Sapphire HD 5870 1GB GDDR5/CORSAIR CMPSU-550VX/Seagate 7200.12 500GB (OS), Samsung F3 1TB (Storage)/Sony DVD Burner/Windows 7 Professional 64-bit