HIS R9 270X IceQ x2 Turbo Review @ Vortez
 

HIS have five different variants of the R9-270X, each with different factory overclock and heatsink. Some have the ICEQ X cooler while others, such as the item we have for evaluation today, have the ICEQ X2. It has a massive 1100MHz clockspeed as standard which is some 200MHz faster than entry level 270X. With the Tahiti LE at its heart, the HIS R9 270X ICEQ X2 TURBO might just have enough to topple our current favourite mid-range GPU, the NVIDIA GTX760.

http://www.vortez.net/review.php?id=824