AMD Radeon R9 280X / R9 270X from ASUS and MSI review: R9 in practice
 

Two days ago AMD introduced the new Radeon R9 280X, R9 270X and R7 260X graphics cards (you can find our review here). Granted, the main 'new' thing about the cards were their names, considering the R9 280X is a different version of the Radeon HD 7970, the R9 270X is an updated version of the HD 7870 and the R7 260X is based on the Radeon HD 7790. We tested the ASUS R9280X-DC2T-3GD5, MSI R9 280X Gaming, MSI R9 270X Hawk and MSI R9 270X Gaming 2G.

http://uk.hardware.info/reviews/4892...r9-in-practice