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All Sandy Bridge designs also incorporate a dual-channel DDR3 controller, suggesting that the triple-channel system used by the LGA 1366 platform is being sidelined.
“We’ve found a very high percentage of clients will only tolerate two memory channels,” explained Opher Kahn, senior principal engineer for Sandy Bridge. “OEMs wanting to build for three channels need to use chips that aren’t based on this design. It’s a small market that we’re not going to separate out of this chip design.”
Portanto, é uma arquitetura dual channel e você deve obter um melhor desempenho com dois módulos de RAM.