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by wtallis 4267 days ago
It's not a Haswell vs. Ivy Bridge distinction, it's a consumer vs. server distinction. Consumer CPUs only have dual-channel memory controllers and Intel's DDR3 controllers can't use 16GB UDIMMs or have more than 2 UDIMMs per channel. The server chips (a handful of which get some features cut off and sold under the i7 brand) have 4 memory controllers and also support RDIMMs and LRDIMMs.
1 comments

>Intel's DDR3 controllers can't use 16GB UDIMMs

That is a software not a hardware limitation (in particular, I think it is in Intel's MRC). ASUS has firmware with modified MRC code that can support it.