Intel's chief architect, Ronan Singhal, has confirmed that Bloomfield, Core i7 CPUs will officially support only DDR3 800 and DDR3 1066MHz memory. At launch there won’t be an official support for DDR3 1333, not to mention any higher memory frequencies.

At the same time, this doesn’t mean that you won’t be able to run your DDR3 memory at higher speeds than DDR3 1066. We learned that DDR3 1600 is also possible, but at this stage this is considered as overclocking and it is not officially supported by Intel.

We also learned that shortly after the launch, Intel might validate DDR3 1333 and maybe even some faster memory, but we didn’t get many details about it.

The launch SKUs will be officially stuck with DDR3 1066, while the faster ones will be considered overclocking. Even the DDR3 2000 should be possible, but this will mainly depend on the board.