Intel Xeon Phi "Knights Landing" - MCDRAM

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Intel Xeon Phi "Knights Landing" has also high bandwidth DRAMs (denoted as MCDRAM). Their capacity is 8x2 = 16 GB, and the memory bandwidth about 480 GB/s.

The channels to external DRAMS have the combined bandwidth 120 GB/s only (one quarter of the MCDRAM bandwidth).