From what I've read, the 3820 overclocks really well and will outperform the 3770k.
Well, yes and no. It OCs great but hard to get them to 4.8GHz +
Really a waste because it won't be pushing more FPS unless he gets a QUAD setup.
3770K and 3820 w/ 2x 7970 CFx will bench about the same. Those extra cores aren't used in game rendering and by benchmark programs. Only thing that will help it is the extra cache.
It really is just the chipset for that socket that allows more bandwidth and PCI-E lanes. You can do 4 lanes @ x16 with a x79 chipset. Z77 chip sets don't allow 4 lanes @ x16. They really are almost the same chip except with extra cores. It really just comes down to bandwidth when you SLi/CFx a Tri/Quad setup.
This post was edited on 11/30 at 1:42 pm