stop making crap up.
HBM is Dram, Slow clocked Dram at that!
caches do one of two things,
reduce latency
amplify bandwidth.
HBM acting as a cache will provide no latency benefit , infact misses to memory will probably be worse then if its acting as a scratch pad because extra latency on HBM cache miss.
What HBM will do is massively increase bandwidth which is why intel has shown bandwidth bound benchmarks so far.
This is no different then the previous knights family.
This publication is part of a developer guide focusing on the new features in 2nd generation Intel® Xeon Phi™ processors code-named Knights Landing (KNL). In this document we discuss the…
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