TUL Corporation, a leading manufacturer of AMD graphic cards, today introduces the latest HD7790 series: the PowerColor TurboDuo HD7790 OC and HD7790 OC version. The latest HD7790 series is introduced with advanced power saving controller, SVI2 Green Power Manage Technology. By taking advantage of it, the PowerColor HD7790 series can dynamically adjust voltage power along with GPU loading status, enabled the best power efficiency and graphics performance without any compromise. The PowerColor TurboDuo HD7790 OC clocks at 7.5% overclocking speed on boost engine, packed with dual-fan cooling and S-shape heat pipe direct touch technology, easily took away the heat from GPU. Furthermore, it takes advantage of innovative Aerodynamics Kit design; through the dual cooling vents onboard, the air flow can be enhanced efficiently and dissipated the heat from the TurboDuo cooling solution to deliver the best cooling effect. In the meanwhile, PowerColor announces HD7790 OC version to satisfy different gamers. With 1030MHz boost engine and 6.0Gbps memory clock, it delivers a simple and intelligent overclokcing experience, offered an impressive graphics performance to all gamers.