PowerColor Unveils The Fastest Radeon HD 4890Powercolor’s PCS+ HD4890 feature card’s overclocking ability Taipei, Taiwan – April 24, 2009 – TUL Corporation, a leading manufacturer of AMD graphics cards, today announced a powerful addition to the PowerColor HD4890 series: PCS+ HD4890. PowerColor’s Professional Cooling System PLUS or PCS+, delivers the ultimate overclocking ability with GDDR5 onboard memory, 950MHz core speed and 1100MHz effective memory speed with memory data transmission rates up to