pierre; right now top end DDR3 is going to be faster than early DDR4 because; Timings. right now this is only going to adopt power savings, and I've actually been curious personally why hasen't an OEM tried to do an X99/DDR3 board; much like the old days where you could get those boards that supported DDR1 and DDR2 on the same board, or simply supporting the older standard during this early phase. It's probably going to be late next year or even early 2016 before we see DDR4's bandwidth advantages outstripping Hot, O.C.'d DDR3 with Tight, sexy Timings. i wouldn't mind a budget X99-SLI board with only 4 DDR3 slots (2 on each side?) supporting up to 32GB of DDR3-3200(OC) to throw a 5820k on. it WOULD be kinda interesting to see what a 3 PCIe x9 (v3.0) slots would look like with a single PCIe 1x, hehe.