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Old 2015-06-14, 10:00   #67
fivemack
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I do have an energy meter - but it's in an outbuilding and I don't have a webcam rigged up to point at the energy meter yet, so I've got point measurements and couldn't very easily record energy use at each core count.

A little further up the thread I mentioned that I was seeing 30W at idle and about 83W flat-out.

For the aid of anyone else reading this: 'efficiency 73% on 5 CPUs' means that the dimensions-per-hour figure for five CPUs is 73% of five times the figure on one CPU.

Last fiddled with by fivemack on 2015-06-14 at 10:01
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Old 2015-06-14, 10:04   #68
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Quote:
Originally Posted by fivemack View Post

For the aid of anyone else reading this: 'efficiency 73% on 5 CPUs' means that the dimensions-per-hour figure for five CPUs is 73% of five times the figure on one CPU.
I was updating my post while you were answering because I did understand how you calculated your "efficiency".

Last fiddled with by pinhodecarlos on 2015-06-14 at 10:05
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Old 2015-06-18, 00:51   #69
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I'm considering this build:

http://pcpartpicker.com/p/JW3Z3C

I already have the PSU and RAM from previous combo purchases. Anyone here have experience with AMD's AM1 line?

Last fiddled with by masser on 2015-06-18 at 00:51
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Old 2015-06-27, 14:46   #70
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Anandtech reviewed a Xeon-D on a SuperMicro board and got an idle power reading of 31W, very close to that of fivemack. http://www.anandtech.com/show/9185/i...r-soc-champion
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Old 2015-06-30, 11:50   #71
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AnandTech tested the Samsung Exynos 7240 (including detailed power consumption). Produced on Samsung 14nm FinFet it needs less power to operate at a higher frequency than the Samsung Exynos E5433 (on 20nm planar).
5433: 4x A57 cores @1.9GHz => 7.39W
7240: 4x A57 cores @1.9GHz => 4.12W
7240: 4x A57 cores @2.1GHz => 5.49W

See also attached images and anandtech article:
http://www.anandtech.com/show/9330/e...20-deep-dive/5

I hope Hardkernel is going to use it in a new Odroid board :P .
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Old 2015-06-30, 13:39   #72
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Quote:
Originally Posted by VictordeHolland View Post
(...) Samsung Exynos 7240 (...)

I hope Hardkernel is going to use it in a new Odroid board :P .
Not this year it seems
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Old 2015-07-04, 11:34   #73
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Quote:
Originally Posted by ldesnogu View Post
Not this year it seems
I'm not really suprised, it would seem Samsung is reserving the 14nm high-end production capabilities for it's own products (and maybe Apple).

It are interesting times with Samsung, Qualcomm and Intel battling it out on the high-end low power mobile market. At the moment Samsung seems to have the best smartphone SOC, but that could change when Qualcomm releases their own ARM core implementation. Or maybe Intel have an ace up their sleeve...

Last fiddled with by VictordeHolland on 2015-07-04 at 11:37
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Old 2015-07-14, 13:51   #74
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Some interesting computing equipment based on 64-bit ARM SoCs is supposed to become available for both rental (e.g. http://www.design-reuse.com/news/378...processor.html) and purchase (e.g. http://www.cavium.com/newsevents-GIG...rocessors.html) this quarter.
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Old 2015-07-21, 07:43   #75
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Cavium ThunderX seems to be gaining traction even in HPC in the form of CPU + NVIDIA Tesla: http://insidehpc.com/2015/07/e4-comp...arm-with-gpus/
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Old 2015-08-25, 00:49   #76
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http://arstechnica.com/gadgets/2015/...or-yet-the-55/
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Old 2015-09-02, 14:33   #77
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http://arstechnica.com/gadgets/2015/...arting-at-180/
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