This may be a noob question but could I oc the gtx 770 to get more fps then a gtx 780? I really don't want to spend the extra $ and I play on a 1080p montior with Crysis 3 on max. So what gpu should I get? I am also considering a 7970 ghz but I never got a amd gpu so I'm not sure.
ALSO, does the asrock extreme z87 6 come with wi-fi and bluetooh? If not, any good z87 mobo's that do?
The GTX 770 and GTX 780 do not use the same chipset. The GTX 770 is a refined GTX 680 (literally). The GTX 780 uses the Titan chipset which is a totally different GPU. Simply overclocking a GTX 770 (even heavily) will not get you 780 performance.
The question is whether the performance gain, and the resolution you play at, is worth $250 more. Especially at 1080p the GTX 780 probably does not make much sense. Not unless you just have $650 you want to throw away.
EDIT: If Crysis 3 is the most important thing then the GTX 780 is the better option. It is way more than you need for just about any other game though!
Even a 780 cannot max out Crysis @1080p with acceptable frame rates, look at SLI or GTX 690!
Off-Topic: I have a GTX 590 OC'ed with 3GB of VRAM and an i7-3770K in my current build, and I get a stable 36-60 (VSync) FPS in Crysis 3 at the highest settings possible in 1080p, except the antialias is a setting lower than the highest possible setting.
But, on-topic, jerreece is probably your best answer.