The SAPPHIRE R7 250X Vapor-X OC edition uses 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 latest GPU technology from AMD, the SAPPHIRE R7 250X Vapor-X OC edition has 1GB of the latest DDR5 memory, & is factory overclocked with core clocks of 1100 M Hz & memory clocks of 1300 M Hz (5.2 GB/s effective) to deliver excellent performance.