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03/03/17 10:29 AM

#147956 RE: Unkwn #147955

By the way, Ryzen in my opinion shows just how capable Samsung's 14nm process actually is.




it takes >1.4V to get 4GHz out of this chip. Kaby Lake can do 5GHz at sub-1.4V. Even the 22nm Haswell-E 8 core chips could do 4.6GHz at 1.4V...


Our initial preview of the Core i7-7700K used an older BIOS on the same board and we did manage 5.1GHz using a vcore of 1.44V, however with the latest EFI, temperatures got too toasty above 5GHz, but the voltage required to hit lower frequencies appeared to be lower. Even so, those with premium cooling could expect to run a 4.9GHz or 5GHz 24/7 overclock fairly easily.

The Core i5-7600K was even better. 5.1GHz required just 1.38V, which again was easily tameable by our 120mm all-in-one liquid cooler, with temperatures never topping 90 degrees. 5GHz needed just 1.28V, and 4.8GHz, which is a 1GHz overclock over its base frequency, needed just 1.17V - the same as the default voltage with XMP loaded in the EFI. Here, even modest cooling would be adequate, which is fantastic news.



https://www.bit-tech.net/hardware/2017/01/03/intel-core-i7-7700k-i5-7600k-review/8

and



http://www.anandtech.com/show/8426/the-intel-haswell-e-cpu-review-core-i7-5960x-i7-5930k-i7-5820k-tested/3

I think for high performance CPUs, Intel's 14nm+ is far ahead of Samsung 14LPP.

chipguy

03/03/17 12:07 PM

#147962 RE: Unkwn #147955

By the way, Ryzen in my opinion shows just how capable Samsung's 14nm process actually is.

It is really hard to compare process capabilities on the basis of a
couple of point products. These two new AMD chips could have their
frequency and TDP defined in a way that 90% of good die could meet
them or only the very best 10% with the expectation of collecting and
down SKUing the rest with follow on economy offerings. The latter
scenario makes the process's capability look a lot better. It is also a
lot more credible given AMD's ambitious (for them) pricing.

The specs of the high volume, low price Zen parts AMD will eventually
sell will be a much better indicator how good their foundry's process is.