The main difference between these two laptop processors is the i7 2760qm runs at a max of 3.5ghz under turbo, and the 2670 runs at 3.1ghz under turbo, so 400mhz difference. Also, the 2760qm natively supports DDR-1600mhz where the 2670 only supports DDR3-1333mhz. The differences are pretty small though, and you would not likely notice.