Overclocking
Our overclocking experience with the R9 290 Tri-X has been mixed. We found little room to manoeuvre on the memory front, and struggled to get the 4GB frame buffer much beyond 5,500MHz. The core proved more willing though, and was happy enough running at 1,100MHz, whereas 1,200MHz introduced visible on-screen artefacts.
That extra bit of performance is enough to put the R9 290 Tri-X at the top of the pile. Reiterating the same point, this is a sub-Ā£400 card that can mix it up with the very best.