Re:Arm unveils 7nm Cortex-A76 CPU
by herogreen on Tuesday June 05, 2018 @02:41AM
(#17235458)
My current laptop is a cheap Dell from 2015. It contains an unimpressive Celeron N2840 @2.16GHz but it is surprisingly usable for Web and office tasks and very low power (I never hear the fan). So I think you should also benchmark it against current Celerons (N3710).
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On paper, your Celeron is specified to run at 6 W max[1], and of course has 4 cores; that's 1.5 W/core.
The AnandTech article says[2] that the new Cortex-A76 can run with a power budget of 750 mW/core, which is exactly half of the Celeron's, then.
[1] https://ark.intel.com/products/91830/Intel-Pentium-Processor...
[2] https://www.anandtech.com/show/12785/arm-cortex-a76-cpu-unve...
How does it translate in terms of performance in day to day tasks. I mean browsing, using productivity apps (etc). Do you think the extra instructions found on x86 can actually compensate the power hungry. Therefore, making x86 a more efficient architecture ?
Those 6w are a lie, the same way a core-m chips having 4.5 tdp, which in reality go as far as 17.5w.
so the TDP is a gross average measure ?
TDP today is a marketing measure. Intel's real datasheets clearly state TDP of 17.5 Watts.
turbos...
Current Celerons would be Gemini Lake (https://ark.intel.com/products/codename/83915/Gemini-Lake), if not the generation after that - after all, A76 is not exactly shipping.
https://browser.geekbench.com/processors/1967
Vs the projected 3900 Score of a76 at 3ghz.