So I'm building my first PC, now deciding to go with a GTX 770 (4gb) card, don't know which brand to go with, I kinda like the PNY Card, but they have a OC version and OC2 (which is confusing), so any card recommendation would be appreciated, also an explanation on the difference between OC and OC2 would be nice.
Thanks for your time
Paying extra money for more vram is generally not worth it. For a gtx 770 it isn't. You'd only need 4gb for 4k gaming, and even then 3gb could be enough. But the problem is that a 770 is a little to slow for that kind of stuff. as for the "oc" names is just a marketing thing, telling that their cards are overclocked at higher frequencies compared to the reference gtx 770. Don't worry about that.
If you're gonna get a gtx 770 just get the cheapest one from a well known company like Sapphire, Asus, msi and so on. Pny are of course fine too.