SAPPHIRE VAPOR-X R9 290X TRI-X OC Video Card Review
 

We take a look at the SAPPHIRE Vapor-X R9 290X TRI-X OC video card which has the highest factory overclock we've ever encountered on any AMD R9 290X video card. This video card is feature rich and very fast. We'll overclock it to the highest GPU clocks we've seen yet on R9 290X and compare it to the competition.

http://www.hardocp.com/article/2014/...o_card_review/