Infiniti

Link or it didn't happen....

I got this amazing game two days ago, but I noticed that my FPS rate is a little low.... Even on lowest settings, my FPS is near 15 when I go through cities or large forests. I was wondering what parts would be the cheapest and easiest to upgrade on my computer to help improve my FPS rate (if you have any suggestions on what to get specifically that would be great). All I know about my computer is that I have a Intel Core2 Quad CPU Q6600 @ 2.40 GHz processor with 2 gigs of RAM, and an NVIDIA GeForce 8800 GTS display card. My DxDiag log is attached to this post. DxDiag.txt

I'm running Windows 7 Bitch, please, I'm running Windows 7 64-Bit, and Windows 8 is shit, so I am not looking into upgrading. But yeah, I was definitely thinking atleast an i5 processor with 8gb of RAM. Thanks everyone!