The Sapphire HD 7770 Vapor-X OC Edition is the first card in this generation to use the Sapphire exclusive implementation of Vapor chamber cooling technology. Previous products with Vapor-X have received world wide acclaim for delivering very efficient cooling that allows the card to run at higher speeds but with very low noise levels. Based on the GPU technology from AMD, the Sapphire HD 7770 Vapor-X OC Edition has 1 GB of the DDR5 memory, & is factory overclocked with core clocks of 1100 MHz & memory clocks of 1300 MHz to deliver excellent performance.