The title says it all (Can it cool an i7-4770k at a comfortable temperature when overclocked and gaming even CPU intensive games like Skyrim with 200 mods.)
Yes, I have an i7-4770K and occasionally game on it (Crysis 3 usually), and it works wonders, especially considering how freakin' cheap it is. I have three of these things, on my server and one of my kids' PCs. They are awesome.