We have posted our evaluation of the SAPPHIRE VAPOR-X R9 290X TRI-X OC for your viewing pleasure. If you want the fastest out-of-the-box factory overclocked R9 290X, that still has room for more overclocking, you definitely want to read this 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.