Asus 780 Reference vs 780 OC vs 780 CU II

[bjkill]

Hi I am in the process of building a water cooled system. I currently have a Asus 780 OC version. And was wondering which Asus 780 to buy so I can SLI with EK water blocks. Since I am going to water cool, so the air cooling unit would not be used.

Questions:
1. Are all three cards exactly the same if I take off the cooling unit?
2. Can all three cards be over clocked to the same level?
3. I can't seem to find places that sells the reference card nor the CUII NON-OC edition. Can someone show me where I can get them thanks.


This would be put on a Asus Formula VI Running 6 monitors when I surfing the net and working and on surround when I play games (mainly BF4 and StarCraft.) Thanks.

 

[Ahmadjon]

For water cooling better to get reference GTX-780, all three cards should have same OC (OC depends on chip quality so it's kind of luck to get good chip)
You also can get any reference GTX-780 and it will work perfectly fine with your SLI setup

Edit: You can get EVGA's "Hydro Copper" GPU with stock water block on it.

http://www.tomshardware.com/forum/id-1831147/gtx780-watercooling.html