Looking to optimize graphics performance on my PC

if you can cough up another $40, i'd recommend a Radeon 5xxx series with DirectX 11 support, entry level models are available for $140, like this Radeon HD 5750 with 1GB GDDR5 memory:

thats REAL easy to say "JUST BUY A NEW ONE" But the man asked to beef up his current one. For this card EVGA percision turner will OVERCLOCK your GPU;Shaders;and memory on the card. USING this software you can EASLY give your card the SAME clock speeds as these others cards that are covited so much.. EXAMPLE i have a 8200m G IGP for my laptop. Stock speeds 400 gpu 800 shader 667 ddr2 memory. i have it clocked to 580 GPU 1.3 Ghz shader and 800 mhz ram on the INTERNAL card. JUST like a more expensive card. SO i have 40-60 fps instead of 20-30 fps. IF you don't have any money LIKE ME. then this can be a solution for you.