Apple unveils M1, its first system-on-a-chip for portable Mac computers

Re:Apple unveils M1, its first system-on-a-chip for portable... by semi-extrinsic on Tuesday November 10, 2020 @07:06PM (#25053875)

Well, the latest AMD Epyc has 256 MB L3 cache, so we're getting there.

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Re:Apple unveils M1, its first system-on-a-chip for portable... by gameswithgo on Tuesday November 10, 2020 @07:22PM (#25054014)

but any given core only has access to 16 soon to be 32mb

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Re:Apple unveils M1, its first system-on-a-chip for portable... by fulafel on Wednesday November 11, 2020 @12:05AM (#25055657)

in Zen 1 and Zen 2, cores have direct or indirect access to the shared L3 cache in the same CCX. In the cross-CCX case the neighboring CCX cache can be accessed over the in-package interconnect without going through system DRAM.

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Re:Apple unveils M1, its first system-on-a-chip for portable... by samoa42 on Wednesday November 11, 2020 @08:11AM (#25058035)

this!

when i started with computers, they had a few KB of L2 cache, L3 did not exist. Main Memory was a few MB.

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