By: Wilco (Wilco.dijkstra.delete@this.ntlworld.com), August 22, 2018 11:38 am
Room: Moderated Discussions
Michael S (already5chosen.delete@this.yahoo.com) on August 21, 2018 5:07 am wrote:
> AM (myname4rwt.delete@this.jee-male.com) on August 18, 2018 1:06 pm wrote:
> > Michael S (already5chosen.delete@this.yahoo.com) on August 18, 2018 12:49 pm wrote:
> > >
> > > It's public knowledge that A15 power efficiency was poor and A57 not much better if at all better.
> > > A72 - just a little better than A57.
> > > A9/A14/A73/A75 line had much better efficiency at comparable performance.
> > > A7/A53/A55 had dramatically better efficiency. Not at comparable performance.
> >
> > Public knowledge contains a lot of misinformation talked about and posted around,
> > not everything by far is true. Do you have true or at least trustible data?
>
>
> Turned out that data (you decide about trustworthiness) was already posted in this thread.
>
> https://www.realworldtech.com/forum/?threadid=179436&curpostid=179456
>
> https://images.anandtech.com/doci/12520/speceff1.png
>
> Since you probably don't know much about various ARM SoCs, I will spell it slowly:
>
> SpecInt power efficiency (Lower is better), Absolute score is givent in parenthesis, higher is better
> 9780 (12.70) - Samsung 10LPP, Exynos 9810 PS, ARM Cortex A55*, ARM-Cambridge,UK
No this is M3 downclocked to 1.7GHz so it runs at its most efficient point.
> 12551 (17.69) - Samsung 10LPP, Snapdragon 845, Cryo-280 (tweaked ARM
> Cortex A73), ARM-Sophia Antipolis,France + Qualcomm [Durham,NC,US ?]
You mean tweaked Cortex-A75.
> 13243 (13.00) - TSMC 10FF+, Kirin 970, ARM Cortex A73, ARM-Sophia Antipolis, France
> 13338 (13.59) - Samsung 10LPE, Snapdragon 835, Cryo-280
> 17733 (13.72) - Samsung 10LPE, Exynos 8895, Samsung M2, [Mountain View,CA,US ?]
> 19861 (21.73) - Samsung 10LPP, Exynos 9810, Samsung M3, [Mountain View,CA,US ?]
> 21492 (13.62) - TSMC 16FFC, Kirin 960, ARM Cortex A73, ARM-Sophia Antipolis,France
> 21844 (11.75) - TSMC 16FF, Kirin 955, ARM Cortex A72, ARM-Austin,TX,US
> 22309 (10.87) - Samsung 14LPP, Snapdragon 820, Cryo, Qualcomm [Durham,NC,US ?]
> 25168 (12.41) - Samsung 14LPP, Exynos 8890, Samsung M1, [Mountain View,CA,US ?]
> -------
> * - probably, not 100% sure
>
> At first glance, A72 does not look too badly. But it's misleading, because Kirin 955 and
> Kirin 960 are not measured at the same performance point. Kirin 960 was 16% faster.
So at the same performance level, process and SoC designer Cortex-A73 has about 16% better power efficiency - as you would expect from a new core designed to improve efficiency. It shows that the claim that Cortex-A72 is somehow very inefficient is obviously false.
These numbers are also proof that process scaling continues unabated despite claims to the contrary. Performance went up by >50% while power efficiency almost doubled between 14nm and 10nm. I bet 7nm will show similar gains again.
Wilco
> AM (myname4rwt.delete@this.jee-male.com) on August 18, 2018 1:06 pm wrote:
> > Michael S (already5chosen.delete@this.yahoo.com) on August 18, 2018 12:49 pm wrote:
> > >
> > > It's public knowledge that A15 power efficiency was poor and A57 not much better if at all better.
> > > A72 - just a little better than A57.
> > > A9/A14/A73/A75 line had much better efficiency at comparable performance.
> > > A7/A53/A55 had dramatically better efficiency. Not at comparable performance.
> >
> > Public knowledge contains a lot of misinformation talked about and posted around,
> > not everything by far is true. Do you have true or at least trustible data?
>
>
> Turned out that data (you decide about trustworthiness) was already posted in this thread.
>
> https://www.realworldtech.com/forum/?threadid=179436&curpostid=179456
>
> https://images.anandtech.com/doci/12520/speceff1.png
>
> Since you probably don't know much about various ARM SoCs, I will spell it slowly:
>
> SpecInt power efficiency (Lower is better), Absolute score is givent in parenthesis, higher is better
> 9780 (12.70) - Samsung 10LPP, Exynos 9810 PS, ARM Cortex A55*, ARM-Cambridge,UK
No this is M3 downclocked to 1.7GHz so it runs at its most efficient point.
> 12551 (17.69) - Samsung 10LPP, Snapdragon 845, Cryo-280 (tweaked ARM
> Cortex A73), ARM-Sophia Antipolis,France + Qualcomm [Durham,NC,US ?]
You mean tweaked Cortex-A75.
> 13243 (13.00) - TSMC 10FF+, Kirin 970, ARM Cortex A73, ARM-Sophia Antipolis, France
> 13338 (13.59) - Samsung 10LPE, Snapdragon 835, Cryo-280
> 17733 (13.72) - Samsung 10LPE, Exynos 8895, Samsung M2, [Mountain View,CA,US ?]
> 19861 (21.73) - Samsung 10LPP, Exynos 9810, Samsung M3, [Mountain View,CA,US ?]
> 21492 (13.62) - TSMC 16FFC, Kirin 960, ARM Cortex A73, ARM-Sophia Antipolis,France
> 21844 (11.75) - TSMC 16FF, Kirin 955, ARM Cortex A72, ARM-Austin,TX,US
> 22309 (10.87) - Samsung 14LPP, Snapdragon 820, Cryo, Qualcomm [Durham,NC,US ?]
> 25168 (12.41) - Samsung 14LPP, Exynos 8890, Samsung M1, [Mountain View,CA,US ?]
> -------
> * - probably, not 100% sure
>
> At first glance, A72 does not look too badly. But it's misleading, because Kirin 955 and
> Kirin 960 are not measured at the same performance point. Kirin 960 was 16% faster.
So at the same performance level, process and SoC designer Cortex-A73 has about 16% better power efficiency - as you would expect from a new core designed to improve efficiency. It shows that the claim that Cortex-A72 is somehow very inefficient is obviously false.
These numbers are also proof that process scaling continues unabated despite claims to the contrary. Performance went up by >50% while power efficiency almost doubled between 14nm and 10nm. I bet 7nm will show similar gains again.
Wilco
Topic | Posted By | Date |
---|---|---|
ARM turns to a god and a hero | AM | 2018/08/16 08:32 AM |
ARM turns to a god and a hero | Maynard Handley | 2018/08/16 08:41 AM |
ARM turns to a god and a hero | Doug S | 2018/08/16 10:11 AM |
ARM turns to a god and a hero | Geoff Langdale | 2018/08/16 10:59 PM |
ARM turns to a god and a hero | dmcq | 2018/08/17 04:12 AM |
ARM is somewhat misleading | Adrian | 2018/08/16 10:56 PM |
It's marketing material | Gabriele Svelto | 2018/08/17 12:00 AM |
It's marketing material | Michael S | 2018/08/17 02:13 AM |
It's marketing material | dmcq | 2018/08/17 04:23 AM |
It's marketing material | Andrei Frumusanu | 2018/08/17 06:25 AM |
It's marketing material | Linus Torvalds | 2018/08/17 10:20 AM |
It's marketing material | Groo | 2018/08/17 12:44 PM |
It's marketing material | Doug S | 2018/08/17 01:14 PM |
promises and deliveries | AM | 2018/08/17 01:32 PM |
promises and deliveries | Passing Through | 2018/08/17 02:02 PM |
Just by way of clarification | Passing Through | 2018/08/17 02:15 PM |
Just by way of clarification | AM | 2018/08/18 11:49 AM |
Just by way of clarification | Passing Through | 2018/08/18 12:34 PM |
This ain't the nineties any longer | Passing Through | 2018/08/18 12:54 PM |
This ain't the nineties any longer | Maynard Handley | 2018/08/18 01:50 PM |
This ain't the nineties any longer | Passing Through | 2018/08/18 02:57 PM |
This ain't the nineties any longer | Passing Through | 2018/09/06 01:42 PM |
This ain't the nineties any longer | Maynard Handley | 2018/09/07 03:10 PM |
This ain't the nineties any longer | Passing Through | 2018/09/07 03:48 PM |
This ain't the nineties any longer | Maynard Handley | 2018/09/07 04:22 PM |
Just by way of clarification | Wilco | 2018/08/18 12:26 PM |
Just by way of clarification | Passing Through | 2018/08/18 12:39 PM |
Just by way of clarification | none | 2018/08/18 09:52 PM |
Just by way of clarification | dmcq | 2018/08/19 07:32 AM |
Just by way of clarification | none | 2018/08/19 07:54 AM |
Just by way of clarification | dmcq | 2018/08/19 10:24 AM |
Just by way of clarification | none | 2018/08/19 10:52 AM |
Just by way of clarification | Gabriele Svelto | 2018/08/19 05:41 AM |
Just by way of clarification | Passing Through | 2018/08/19 08:25 AM |
Whiteboards at Gatwick airport anyone? | Passing Through | 2018/08/20 03:24 AM |
It's marketing material | Michael S | 2018/08/18 10:12 AM |
It's marketing material | Brett | 2018/08/18 04:22 PM |
It's marketing material | Brett | 2018/08/18 04:33 PM |
It's marketing material | Adrian | 2018/08/19 12:21 AM |
A76 | AM | 2018/08/17 01:45 PM |
A76 | Michael S | 2018/08/18 10:20 AM |
A76 | AM | 2018/08/18 11:39 AM |
A76 | Michael S | 2018/08/18 11:49 AM |
A76 | AM | 2018/08/18 12:06 PM |
A76 | Doug S | 2018/08/18 12:43 PM |
A76 | Maynard Handley | 2018/08/18 01:42 PM |
A76 | Maynard Handley | 2018/08/18 03:22 PM |
Why write zeros when one can use metadata? | Paul A. Clayton | 2018/08/18 05:19 PM |
Why write zeros when one can use metadata? | Maynard Handley | 2018/08/19 10:12 AM |
Dictionary compress might apply to memcopy | Paul A. Clayton | 2018/08/19 12:45 PM |
Instructions for zeroing | Konrad Schwarz | 2018/08/30 05:37 AM |
Instructions for zeroing | Maynard Handley | 2018/08/30 07:41 AM |
Instructions for zeroing | Adrian | 2018/08/30 10:37 AM |
dcbz -> dcbzl (was: Instructions for zeroing) | hobold | 2018/08/31 12:50 AM |
dcbz -> dcbzl (was: Instructions for zeroing) | dmcq | 2018/09/01 04:28 AM |
A76 | Travis | 2018/08/19 10:36 AM |
A76 | Maynard Handley | 2018/08/19 11:22 AM |
A76 | Travis | 2018/08/19 01:07 PM |
A76 | Maynard Handley | 2018/08/19 05:24 PM |
Remote atomics | matthew | 2018/08/19 11:51 AM |
Remote atomics | Michael S | 2018/08/19 12:58 PM |
Remote atomics | matthew | 2018/08/19 01:32 PM |
Remote atomics | Michael S | 2018/08/19 01:36 PM |
Remote atomics | matthew | 2018/08/19 01:48 PM |
Remote atomics | Michael S | 2018/08/19 02:16 PM |
Remote atomics | Ricardo B | 2018/08/20 09:05 AM |
Remote atomics | dmcq | 2018/08/19 01:33 PM |
Remote atomics | Travis | 2018/08/19 01:32 PM |
Remote atomics | Michael S | 2018/08/19 01:46 PM |
Remote atomics | Travis | 2018/08/19 04:35 PM |
Remote atomics | Michael S | 2018/08/20 02:29 AM |
Remote atomics | matthew | 2018/08/19 06:58 PM |
Remote atomics | anon | 2018/08/19 11:59 PM |
Remote atomics | Travis | 2018/08/20 09:26 AM |
Remote atomics | Travis | 2018/08/20 08:57 AM |
Remote atomics | Linus Torvalds | 2018/08/20 03:29 PM |
Fitting time slices to execution phases | Paul A. Clayton | 2018/08/21 08:09 AM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 01:34 PM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 02:31 PM |
Fitting time slices to execution phases | Gabriele Svelto | 2018/08/21 02:54 PM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 03:26 PM |
Fitting time slices to execution phases | Travis | 2018/08/21 03:21 PM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 03:39 PM |
Fitting time slices to execution phases | Travis | 2018/08/21 03:59 PM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 04:13 PM |
Fitting time slices to execution phases | anon | 2018/08/21 03:27 PM |
Fitting time slices to execution phases | Linus Torvalds | 2018/08/21 05:02 PM |
Fitting time slices to execution phases | Etienne | 2018/08/22 01:28 AM |
Fitting time slices to execution phases | Gabriele Svelto | 2018/08/22 02:07 PM |
Fitting time slices to execution phases | Travis | 2018/08/22 03:00 PM |
Fitting time slices to execution phases | anon | 2018/08/22 05:52 PM |
Fitting time slices to execution phases | Travis | 2018/08/21 03:37 PM |
Is preventing misuse that complex? | Paul A. Clayton | 2018/08/23 04:42 AM |
Is preventing misuse that complex? | Linus Torvalds | 2018/08/23 11:46 AM |
Is preventing misuse that complex? | Travis | 2018/08/23 12:29 PM |
Is preventing misuse that complex? | Travis | 2018/08/23 12:33 PM |
Is preventing misuse that complex? | Jeff S. | 2018/08/24 06:57 AM |
Is preventing misuse that complex? | Travis | 2018/08/24 07:47 AM |
Is preventing misuse that complex? | Linus Torvalds | 2018/08/23 01:30 PM |
Is preventing misuse that complex? | Travis | 2018/08/23 02:11 PM |
Is preventing misuse that complex? | Linus Torvalds | 2018/08/24 12:00 PM |
Is preventing misuse that complex? | Gabriele Svelto | 2018/08/24 12:25 PM |
Is preventing misuse that complex? | Linus Torvalds | 2018/08/24 12:33 PM |
Fitting time slices to execution phases | Travis | 2018/08/21 02:54 PM |
rseq: holy grail rwlock? | Travis | 2018/08/21 02:18 PM |
rseq: holy grail rwlock? | Linus Torvalds | 2018/08/21 02:59 PM |
rseq: holy grail rwlock? | Travis | 2018/08/21 03:27 PM |
rseq: holy grail rwlock? | Linus Torvalds | 2018/08/21 04:10 PM |
rseq: holy grail rwlock? | Travis | 2018/08/21 05:21 PM |
ARM design houses | Michael S | 2018/08/21 04:07 AM |
ARM design houses | Wilco | 2018/08/22 11:38 AM |
ARM design houses | Michael S | 2018/08/22 01:21 PM |
ARM design houses | Wilco | 2018/08/22 02:23 PM |
ARM design houses | Michael S | 2018/08/29 12:58 AM |
Qualcomm's core naming scheme really, really sucks | Heikki Kultala | 2018/08/29 01:19 AM |
A76 | Maynard Handley | 2018/08/18 01:07 PM |
A76 | Michael S | 2018/08/18 01:32 PM |
A76 | Maynard Handley | 2018/08/18 01:52 PM |
A76 | Michael S | 2018/08/18 02:04 PM |
ARM is somewhat misleading | juanrga | 2018/08/17 12:20 AM |
Surprised?? | Alberto | 2018/08/17 12:52 AM |
Surprised?? | Alberto | 2018/08/17 01:10 AM |
Surprised?? | none | 2018/08/17 01:46 AM |
Garbage talk | Andrei Frumusanu | 2018/08/17 06:30 AM |
Garbage talk | Michael S | 2018/08/17 06:43 AM |
Garbage talk | Andrei Frumusanu | 2018/08/17 08:51 AM |
Garbage talk | Michael S | 2018/08/18 10:29 AM |
Garbage talk | Adrian | 2018/08/17 07:28 AM |
Garbage talk | Alberto | 2018/08/17 08:20 AM |
Garbage talk | Andrei Frumusanu | 2018/08/17 08:48 AM |
Garbage talk | Adrian | 2018/08/17 09:17 AM |
Garbage talk | Andrei Frumusanu | 2018/08/17 09:36 AM |
Garbage talk | Adrian | 2018/08/17 01:53 PM |
Garbage talk | Andrei Frumusanu | 2018/08/17 11:17 PM |
More like a religion he?? ARM has an easy life :) | Alberto | 2018/08/17 08:13 AM |
More like a religion he?? ARM has an easy life :) | Andrei Frumusanu | 2018/08/17 08:34 AM |
More like a religion he?? ARM has an easy life :) | Alberto | 2018/08/17 09:03 AM |
More like a religion he?? ARM has an easy life :) | Andrei Frumusanu | 2018/08/17 09:43 AM |
More like a religion he?? ARM has an easy life :) | Doug S | 2018/08/17 01:17 PM |
15W phone SoCs | AM | 2018/08/17 02:04 PM |
More like a religion he?? ARM has an easy life :) | Maynard Handley | 2018/08/17 11:29 AM |
my future stuff will be better than your old stuff, hey I'm a god at last (NT) | Eric Bron | 2018/08/18 02:34 AM |
my future stuff will be better than your old stuff, hey I'm a god at last | none | 2018/08/18 07:34 AM |