ZOTAC GEFORCE GTX 750 Zotac GeForce GTX 750 is Maxwell clocked at 1033Mhz with 1GB GDDR5 clocked at 5400Mhz. Zotac GeForce GTX 750 has 128Bit memory interface with 640 shaders with directx 11 with TDP of 60. Sapphire Radeon R7 265 is Pitcairn clocked at 900Mhz with 2GB GDDR5 clocked at 5600Mhz. Sapphire Radeon R7 265 has 256Bit memory interface with 1024 shaders with directx 11.2 with TDP of 115. Benchmark software for testing Zotac GeForce GTX 750 and Sapphire Radeon R7 265 is as follows:- Battlefield 3, Bioshock Infinite, Dirt 3, Farcry 3, Hitman Absolution, Max Payne 3, Resident Evil 6 and Tomb Raider 3. AMD FX 8350 CPU with Gigabyte GA78LMT S2P Windows 7."