News Intel's Sapphire Rapids to Have 64 Gigabytes of HBM2e Memory

JayNor

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May 31, 2019
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Intel also unveiled the 408MB L2 cache for Ponte Vecchio. No big announcement like AMD's V2 cache, but delivering it in the same timeframe.
 

frogr

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Nov 16, 2009
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Technically like the article said the HBM can operate in "cache mode", functioning like a cache of the system. Assuming all 48GB of HBM it can function like an extension of L3 or even L4 cache
AMD claims 10% access time penalty compared to on chip L3 cache. I think HBM access times would be signficantly greater so it could be L4 like cache. Nonetheless, it will be interesting to see how much this can speed up certain applications - blockchain mining anyone? 😣
 
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