PCI-Express 3.0 has been here for a little while now, but it has only been with the launch of the PCI-Express 3.0-capable AMD Radeon HD 7000-series that there has been some proper testing. The world’s first 28nm GPU to support PCI-e 3.0 is here, people! 
PCIe 3.0 increases per-land bandwidth from 500MB/sec to 1GB/sec, this means for an x16 slot, double the bandwidth from 8GB/sec to 16GB/sec. Impressive, but will we see anything close to double the performance? Not now, and not in games. GPU compute tasks do see a difference in performance, however. < Read more…
The card, as you can see in the picture above, is quite long, roughly the same length as AMD’s current Radeon HD 6970. It sports twelve GDDR5 memory chips, which means they use a 384-bit memory bus. It also includes two 8-pin PCI Express power connectors, which should give it up to 375W of power to suck down. T 
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