Just to further illustrate Intel's dominance. PCIE 3.0 has been recently disabled on the 680 drivers for the SB-E x79 platform. (besides the one that came with the device, like 300.86) This is because when the x79 came out and SB-E chips came out, there were no devices to test them out on. If you look at the 2011 CPUs, they will say PCIE 2.0, with the ability to have 8GT/s. Since they could not validate the PCIE 3 compatability. So NVIDIA disabled PCIE 3 on their latest drivers for the 680, since Intel says nothing is "Validated".

Now, NVIDIA is having to certify motherboards that work with PCIE 3.0, even though they worked when they first came out. People have done registry edits, and then showed using GPUz that PCIE 3.0 is indeed working.

It's all because of Intel saying that everything needs to be certified and validated.

Of course though their motherboards (x79) show the ability to have PCIE 3.0, yet their chips say 8GT/s. All "stupid" semantics as far as I'm concerned.

AMD 7000 series are of course showing PCIE 3 on their GPUs on x79, but this is because they probably don't have to listen, nor care about Intel as much IMHO.