The SAPPHIRE R9 290X Tri-X 8GB features the latest GCN (graphics core next) architecture from AMD with 2816 stream processing units and an enhanced engine clock of up to 1020Mhz. It is equipped with 8GB of the latest high performance GDDR5 memory on a 512-bit interface and now clocked at 1375MHz (5.5GHz effective) delivering higher bandwidth than earlier models. Built on a SAPPHIRE original pcb, the layout incorporates a 6-phase VDC power design. Two 8-pin power connectors ensure adequate system power is available (up to 375 Watts total including PCI-Express power).