So you've seen the performance of Intel Sandy Bridge and are looking to buy a new P67 motherboard, memory kit, and Sandy Bridge Core i7 or Core i5 processor. Picking the CPU is the easy part as there are a dizzying array of memory kits all at different speeds. Today we're going to take a look at one of the fastest 4GB kits of memory you can get your hands on and see if it improves performance. That memory kit is the HyperX Genesis 2133MHz from Kingston Technology. It was recently certified by Intel for X.M.P. (Extreme Memory Profile) use on all Sandy Bridge CPU's! Remember that Sandy Bridge on P67 chipsets supports a number of memory multipliers by default, the highest of which is 2133MHz. H67 on the other hand only supports up to the official spec of 1333MHz.