Multi-socket Nehalems paired with MetaRAM could provide some jaw-dropping numbers. Here's a look at what dual-CPU boards might be able to accomplish:
“Up to 16GB DDR3-1333 modules can be created, allowing up to 96GB RAM per CPU, or 192GB per dual-CPU board. If you go for slower DDR3-1066 and boards with three DIMMs per channel,- nine DIMMs per CPU - we have 144GB per CPU, or 288GB memory per mobo!”
We’re certainly impressed by numbers like those, but we’ll wait until we can actually benchmark such a system’s memory performance before we draw any concrete conclusions.