Will my cpu bottleneck a gtx 660

Solution
Yes, it will bottleneck. LGA775 is quite old now, so depending on what you use your pc for, if you are getting a GTX 660 it might be a better idea to build a new system. If you are using your PC for gaming, minimum I would recommend is a socket 1155 Intel Core i5 processor, and 4gb of ddr3 memory.
Yes, it will bottleneck. LGA775 is quite old now, so depending on what you use your pc for, if you are getting a GTX 660 it might be a better idea to build a new system. If you are using your PC for gaming, minimum I would recommend is a socket 1155 Intel Core i5 processor, and 4gb of ddr3 memory.
 
Solution
You'll see a definite FPS drop in open areas and with lots of people around but should be OK for enclosed spaces. I'd get a cheaper GPU like a 7770 and then save for a new motherboard and either an i3, i5 or an FX 6300.