Is x99 chipset a lot better bet then z97. I know its updated haswell-e but the real question for me is I plan to buy more GPUs after some time and prices drop and get at least 2 or 3 total and it would be nice to go x16/x16/x16. The million dollar question is there a big speed difference between x16/x8 than x16/x16. I know that haswell costs more but if you really get more speed then I think it's worth it but if all you really get is 2% then its obviously a waste.