Today is the launch of the first graphics card featuring ultra high bandwidth GDDR5 memory, the ATI Radeon HD 4870. The ATI Radeon HD 4870, available immediately with a suggested retail price of USD$299, represents an unprecedented 1.2 teraFLOPS of visual compute power. It features a stock GPU core clock speed of 750 MHz, 512 MB of GDDR5 memory rated at 3.6 gigabits/second, and comes in a dual-slot PCI Express 2.0 configuration with a maximum board power of 160 watts.A dedicated website for ATI...