dual r9 280x toxic

Knock

Honorable
Mar 2, 2014
131
0
10,680
If I wanted to install another toxic r9 280x do I just put it in and connect them will I have to get more coolers or more fans? It would be in a corsair 540 with m5a99fxpro with h100i would this work and how much of a boosf in gameplay would I get ? I also hqve a 22inch medion 1000x1600 qm I missing out in visual effects with this should I upgrade?