Gainward HD 4870 X2 is the latest graphics solution equipped with two powerful RV770 GPUs which is designed to take advantage of the power that GDDR5 memory delivers. GDDR5 has twice the available memory bandwidth compared to GDDR3 and GDDR4; thanks to its quad data rate. The Gainward HD 4870 X2 comes with 2048MB of GDDR5 memory at an effective memory speed of 3,600MHz (900MHz quad data rate) connected to two RV770 graphics processors with each 256bits bus per GPU. The two graphics processors, which are clocked at a massive 750MHz, are combined to 800 stream processors for a big performance boost. It supports the latest ATI CrossFire X technology to smoothly fulfill HD gaming experience at highest details settings even with the most demanding games. The card supports a PCI Express 2.0 interface to ensure maximum bandwidth availability.