I need a new processor and I want one of these two.

Intel Core i5-2500K Sandy Bridge 3.3GHz quad core- $220

AMD Phenom II X4 965 Black Edition Deneb 3.4GHz quad core-$130

If I get the AMD processor I have to replace my motherboard which will be an extra $120 so yeah Im just not sure what I should get.I want to know what preforms better and such. I game primarily but I also do photoediting and make music so theres that.I just want to know what will suit my gaming needs better.

I would appreciate any help.