Isn't the PC component an upper limit on performance of a DIMM? PC3200 means 3200MB/s. While a single DDR3 1600 PC12800 DIMM would max at a theoretical 12.8GB/s.

Expand the tables here: http://www.crucial.com/usa/en/support-memory-speeds-compatab...

Err I made a mistake, you are right. PCx means a limit of "x" per channel. My brain read PC3200 as "DDR-3200" ie. 3200 MT/s.

High-end server CPUs such as Intel Broadwell support quad-channel DDR4-2400 PC19200 which is 76.8 GB/s, a lot more bandwidth than the Octane.