The recommended CPU of a 3770k is more like a 3570k, hyper threading on games doesn't really do anything.
If your wondering: i5 4670k has all SATA 6gb/s ports (good for SSDs) on the intel controller, and also generally runs hotter, however is 10% faster (more in some cases, less in some cases).
The i7 3770k has 2 SATA 6gb/s on the intel controller, generally runs cooler, and has hyper threading: which is optimized for video editors, hardcore photo editors, etc.
Basically:
If you game: go with a 4670k.
Video editing, photoshop, and gaming? 3770k.