Intel demonstrates a 28-core processor running at 5GHz

Re:Intel demonstrates a 28-core processor running at 5GHz by Synaesthesia on Tuesday June 05, 2018 @08:30AM (#17237004)

Moores law held up pretty well. Frequency scaling did not continue as it did in the old days, I mean we had 3ghz back in the P4 days. But performance has certainly improved thanks to better IPC, more cores etc.

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Re:Intel demonstrates a 28-core processor running at 5GHz by chriswarbo on Tuesday June 05, 2018 @11:15AM (#17238438)

I remember reading about IBM Power chips running at 5GHz years ago (maybe it was https://hardware.slashdot.org/story/07/01/04/1824223/ibms-ne... ).

Presumably they were too expensive (manufacturing, power, cooling, etc.) since they're not ubiquitous. IIRC the "barrier" to going any higher was the speed of light across the chip: running faster than 5GHz would require the output to be causally independent from the input!

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Re:Intel demonstrates a 28-core processor running at 5GHz by Joky on Tuesday June 05, 2018 @10:15AM (#17237760)

The law is about transistors I believe, not about frequency or performance, isn’t it?

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Re:Intel demonstrates a 28-core processor running at 5GHz by leetcrew on Tuesday June 05, 2018 @10:25AM (#17237873)

as originally formulated, yes, but no one really cares about transistor density itself; we care because it correlates well with performance.

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Re:Intel demonstrates a 28-core processor running at 5GHz by newman314 on Tuesday June 05, 2018 @11:55AM (#17238874)

Not quite 5ghz. We have P8 based E880Cs running SAP @ 4.95ghz, iirc.

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