SAPPHIRE RADEON HD 7790 - "Sapphire Radeon HD 7790 is Bonaire clocked at 1000Mhz with 1GB GDDR5 clocked at 6000mhz. Sapphire Radeon HD 7790 has a memory interface of 128bits with 896 shader processors with support for directx 11.1. MSI GeForce GTX 650 is GK107 clocked at 1058Mhz with 1GB GDDR5 clocked at 5000Mhz. MSI GeForce GTX 650 has a memory interface of 128bits with 384 shader processors with support for directx 11.1. benchmark software we are using for testing Sapphire Radeon HD 7790 and MSI GeForce GTX 650 is as follows:- Battlefield 3, Dirt Showdown, Farcry 3, Metro 2033, Sleeping Dogs and Tomb Raider 3. CPU is AMD FX 8350 Vishera with Gigabyte GA78LMT S2P using Windows 7."