AMD Radeon R9 290X Retail Performance Variance Review
 

The AMD Radeon R9 290X arrived recently with a high level of performance, and a high level of controversy. There have been reports of performance variance between Radeon R9 290X video cards. We have two purchased retail cards today with stock cooling that we will test and see if performance variances exist.

http://www.hardocp.com/article/2014/...ance_rev iew/