Guru3d:

For those of you who lived under a rock and do not know what the X2 actually stands for it’s as simple as it sounds. X2 is times two .. these products are based on multiple GPUs per graphics card. In essence you take a large PCB printed circuit board position two 4850 or 4870 processors with an interconnect bridge-chip grab a handful of memory chips and then a pinch of resistors and mosfets. You put it in the pan stir it and voilla ... your serving is ready. Wanna see how fast the fastest performing graphics card in the worls is of course you do ..