it will increase the performance a bit, but whynot get a amd 8core instead?
cheaper, if u got intel gonna have to get new mobo.cpu.
i see u got sli, but not a tru sli capable motherboard as the second pci-express port is running at 4x and u need 8x minimum to have quality sli.
so ill suggest this instead.http://us.ncix.com/products/?sku=76932&vpn=FD8350FRHKBOX&manufacture=AMD&promoid=1338
8core fx series. overclocked can rival an i5 in gaming. and highly cpu intensive programs.