Fastest in its class, the SAPPHIRE HD 5870 2G TOXIC Edition is factory overclocked to industry leading speeds of 925MHz core and 1225MHz (4.9GHz effective) memory and the larger 2GB frame buffer gives extra advantage in some demanding applications. Fitted with SAPPHIRE’s award winning Vapor-X cooler technology, the TOXIC Edition achieves its world-beating performance whilst working at lower operating temperatures and significantly more quietly than other solutions, and still giving enthusiasts headroom for further performance tuning.