Source: http://www.csm.ornl.gov/SOS20/documents/Sohmers.pptxData movement now requires over 40x more energy than an actual calculation.
60% is used by the unnecessary on chip cache hierarchy
KNL has 16 GB of in-package MC2 DRAM, but also a 6-channel interface to DDR4. So, I would posit that Knights Mill isn't changing any of this, except perhaps off-package 3D XPoint.Intel also noted that Xeon Phi provides direct access to (up to) 400GB of memory, which is a tangible advantage over the current GPU limitation of 16GB. The current Knight's Landing products feature 16GB of on-package MCDRAM (Multi-Channel DRAM) Micron HBM