As with previous versions, the Haswell Intel Xeon E3-1200 V3 series still utilizes unbuffered memory. It can accept either ECC or non-ECC memory. Larger capacity DIMM types such as Registered DIMMs or LRDIMMs will not work with the Haswell based Intel Xeon E3-1200 V3 series processors. As with previous generations, the Intel Xeon E3-1200 V3 series is a dual-channel memory configuration and can therefore address up to four DDR3 DIMM slots. Memory speeds are the same as with the Ivy Bridge generations at a maximum of 1600MHz DDR3 memory. Each DIMM can be up to 8GB in size yielding a 4x 8GB = 32GB maximum memory amount for the Intel Xeon E3-1200 V3 series.
For those interested, it appears as the new Haswell chips can support 32GB at 1600MHz in its maximum memory configuration. Either single or dual ranked DDR3 UDIMMs can be used. In terms of board layouts, from what we have seen thus far, the Haswell based processors. More to come on the Haswell chips this week but suffice to say, users hoping for a boost to at least 64GB will either need to look at the Intel Core i7 (LGA2011 based), Intel Xeon E5 series or an AMD Opteron solution. In the meantime, we have already produced benchmarks of a retail Intel Core i7-4770 Haswell part.