No limit is too high for G.SKILL memory. In just a week after the official release of the new Intel Ivy Bridge-E Core i7 Extreme processors, G.SKILL memory is already testing the extreme limits of the Intel processors and broke the world record for fastest DDR3 yet again. This time a 16GB (4x4GB) G.SKILL TridentX memory kit is overclocked to a blistering DD3 4072MHz - the first instance of a quad-channel DDR3 memory kit to break the 4GHz barrier!
This astounding feat was made possible and achieved on the new Intel i7-4960X CPU and the ASUS Rampage IV Black Edition motherboard under LN2 extreme cooling.
Below is a screenshot of the record validation by CPU-Z. (Source: http://valid.canardpc.com/3bbtga)