* 4 x DIMM, Max. 32 GB, DDR3 1333/1066 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
* The XMP support (MAX 1333MHz) is subject to the physical characteristics of individual CPUs and the package of DRAM. Please refer to Memory QVL for details.
High End Memory Is Not Worth The Money
The results are obvious: going from one memory speed to the next, e.g. from DDR3-1066 to 1333, does not provide major benefits. Even the replacement of slow DDR3-800 RAM by DDR3-1600 memory will mostly yield disappointing results. While the performance advantage is measurable, it is never noticeable.
Of course this is a little late and the poster has probably found his answers eslewhere. But this does benefit me, as I just learned that I don't have to spend money on 1600 ram and a mobo that supports it.