Last month we saw the launch of AMD's 3rd Gen. processors, with a new and improved memory controller allowing manufacturers of DRAM to stretch their legs and develop high speed kits for the masses. Crucial were quick off the mark as today we look at the Crucial Ballistix Elite in the brand new 4000MHz flavour. Their 3600MHz kits of the very same have won plenty of awards as well as the current DDR4 frequency world record at 5758MHz from an off-the-shelf 3600MHz Ballistix Elite kit. Overclocking credentials get a massive tick then.