I'm looking into getting a 1156 based mobo and noticed some 'quirks' concerning SATA 6.0. It seems all the motherboards except ASUS's P7P55D-E Pro cut the PCIe 16x slot down to 8x if using SATA 6.0 or USB 3.0.
Like many, I want my next system to be somewhat 'future proof' with SATA 6.0 and USB 3.0. I don't plan on SLI'ing, so my question is, will I notice any performance drop with a nVidia 460 card running at 8x vs 16x? If so, I'll have to go with the ASUS P7P55D-E Pro. If not, I can save myself some $$$.
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In a single card setup... it is about a 8% difference, which does make a gaming difference... IMO
In a dual card setup... it is about a 4% difference, which doesn't make much of a difference... IMO