As it was explained to me by a user here... Who I believe to be reliable...Originally Posted by spicypixel
The chip communicates instead right through the memory, giving it around 160 gb/s to work with as opposed to that crappy old PLX chip. Due to this, it allows the GPU's to share memory and work together much more effectively. More like a dual core CPU than the traditional "dual" graphics card.
This is of course an oversimplification and what have you, but I am not very knowledgeable about the inner workings of cards, just how to OC them
This could be 100% totally wrong, and it is definitely what I would call hearsay at this point. However, again, IMO this info sounds reasonable.
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