Reply to post: Re: Shortages

Here's a bit of Intel for you: Neri a day goes by that HPE doesn't feel CPU shortage pinch

Anonymous Coward
Anonymous Coward

Re: Shortages

You are correct - as die size increases the chances of a die being affected by an imperfection. Die sizes have increased by about 20% per additional 2-cores (ignoring hyperthreading):

4 core: 124mm2

6 core: 149mm2

8 core: 174mm2

My estimate for utilisation decreases via larger die sizes was 33% to include the die size increase, imperfections and lower number of dies per wafer.

The 50% figure for the comes from using two chiplets on one package (i.e. Cascade Lake AP) - the scaling is exactly 50% because the number of imperfections remains the same within the existing die yield.

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