Well, if we compare it to Patrick's CPU, it's able to go toe-to-toe with a quad turbo rate of 3.1 GHz while his is running at 3.5 GHz, so there is a moderate performance boost per clock. More significantly though, Patrick's 4690K is running an 88 W TDP whereas the Skylake is running 65 W, sports the much improved HD 530 graphics as well as DDR4 support. Your CPU beats both of them out because it's an i7 with a HyperThreading advantage.
I'm still running my dual Radeon HD 7850 space heaters. The only thing that actually runs awesome with the setup are Battlefield games, everything else either runs on one card or has horrible flickering and geometry issues. It's fantastic for keeping my room warm in the winter though.