Quote Originally Posted by Callsign_Vega View Post
Hmm, interesting. If someone was bored and could do the numbers that would be sweet. I notice on SLI zone it says the SLI interconnect does 1GB/sec. Not much more than crossfire but SLI is paralleled versus crossfire is straight series. Paralleled obviously being the better method in virtually all applications.
Says otherwise here:
http://en.wikipedia.org/wiki/Radeon_R700

According to that the port is full duplex.

Current generation of dual-GPU design also features an interconnect for inter-GPU communications through the implementation of a CrossFire X SidePort on each GPU, giving extra 5 GB/s full-duplex inter-GPU bandwidth.