iBUYPOWER Announces Availability of AMD Radeon HD 6990 Graphics Card in all New Systems by Kristofer Brozio • March 8, 2011 iBUYPOWER is proud to announce the availability of the fastest graphics card ever in all of its gaming systems – AMD Radeon HD 6990. The new card provides iBUYPOWER gamers with multiple viewing options, including the power to support up… Read…