The SAPPHIRE HD 6950 TOXIC Edition ships with clock speeds of 880MHz for the core and 1300 MHz (5.2 Gb/sec effective) for the memory, making it the fastest production HD 6950 on the market. This has been achieved by building the card on a high specification PCB with digital VRMs for excellent power regulation and 8 + 6 pin power connectors. It has a high performance cooler featuring a Vapor Chamber, blower fan and a new perforated backplate to increase airflow out of the system case.