Can I SLI MSI gtx 680 2gb with EVGA gtx 680 4gb?????

Chase12345

Honorable
Sep 14, 2013
2
0
10,510
Hey guys I currently have a 2 month old EVGA ftw 4gb gtx 680 and was wondering, am I able to go buy my brothers MSI twin frozr 3 2gb gtx 680 to SLI? or would it not work cause they have didnt vram? im new to SLI and would my power supply be enough? I have a 750w cooler master 80+ bronze..

If it doesnt work, I do have my old MSI twin frozr 660 ti which is 3gb I could run in it, just not SLI but for my off monitors, I usually run 2-3 monitors. And again would 750w be enough?
Thanks in advance!!
 

Chase12345

Honorable
Sep 14, 2013
2
0
10,510
Sorry, not sure if it helps but my whole rig is,
Gtx 680 evga 4gb ftw
750w coolermaster 80 bronze
Asus republic of gamers cross-formulad-z motherboard am3+
amd fx 8350 processor
16gb 1600mhz g.skill ripjaws

thanks