Getting 780. Which to choose?

Newtocomputer

Honorable
Jan 3, 2014
4
0
10,510
Hi everyone currently considering getting a 780 and i've been looking at some different ones.

Comp specs are:
16gb ram (4x4gb) 1600 MHz
750w corsair pw suply
asus m5a97 r2.0 motherboard
fx-8350 4 ghz processor (stock cooler tho getting water cooler soon if any help)

the cards i've been looking at is
Gainward GeForce GTX 780 3GB PhysX CUDA
MSI GeForce GTX 780 3GB PhysX CUDA
ZOTAC GeForce GTX 780 3GB AMP

Playing WoW as my primary game and know they are all a bit overkill. Which would give me the best fps while recording at Ultra settings and also which is the best cost effiency?