HIS RADEON R9 270X HIS Radeon R9 270x is Pitcairn clocked at 1140Mhz with 2GB GDDR5 clocked at 5600mhz. HIS Radeon R9 270x is 256bit with 1280 shaders with directx 11.2 with TDP of 180. Sapphire Radeon R9 270x is Pitcairn clocked at 1020Mhz with 2GB GDDR5 clocked at 5600Mhz. Sapphire Radeon R9 270x is 256bit with 1280 shaders with support for directx 11.2 with TDP of 180. Benchmark software are Battlefield 3, Bioshock Infinite, Dirt 3, Farcry 3, Hitman Absolution, Max Payne 3, Resident Evil 6 and Tomb Raider 3. CPU is AMD FX 8350 with Gigabyte GA78LMT S2P using Windows 7."