[Tom's Hardware] AMD EPYC Rome Benched: 64 Cores, 128 Threads Boosting to 2.2 GHz (for now) - Page 3 - Overclock.net - An Overclocking Community

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[Tom's Hardware] AMD EPYC Rome Benched: 64 Cores, 128 Threads Boosting to 2.2 GHz (for now)

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post #21 of 23 (permalink) Old 04-07-2019, 07:03 AM
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Quote: Originally Posted by KyadCK View Post
What I half expect with this 256MB L3 is that half of it will reside on the IO die as a mirror of what is on the CPU so that the chips no longer need 2 hops and to interrupt another core to access another die's L3. Also eventual HBM stacking on the IO die, per previous AMD slides.
That sounds like a great way to improve latency, but also like a hardware security flaw waiting to happen. Any chiplet having access to all other chiplets L3, and ram on a server.

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post #22 of 23 (permalink) Old 05-19-2019, 10:27 AM
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EPYC Rome 32c VS EPYC 7551 in SiSoftware Processor Multi-Media
Benchmark, How they managed to boost IPC >50%?
Scary if it's true.
https://www.tomshardware.com/news/am...ecs,39373.html
https://ranker.sisoftware.co.uk/show...187f4c9f9&l=en
https://ranker.sisoftware.co.uk/show...385f6cbf3&l=en
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post #23 of 23 (permalink) Old 05-19-2019, 10:50 AM
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Quote: Originally Posted by mothergoose729 View Post
Put another way, two EPYC 32 core CPUs are 30% faster than a single one of these 64 cores CPU, assuming linear scaling with clock speed.
I would say that is expected considering power and heat constraints.

While it might be slower, it doesn't matter when you have a system that needs 128/256 cores.


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