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Intel is very likely still the IdleM@ster[1][2]. Also, most CPUs spend most of their time idling or very low load, not belching hellfire upon the scorched eart

Intel is very likely still the IdleM@ster[1][2]. Also, most CPUs spend most of their time idling or very low load, not belching hellfire upon the scorched earth. Efficiency at idle/low power is far more significant than efficiency at flame belching if power consumption over time is concerned. [1]: https://news.ycombinator.com/item?id=38823514 https://news.ycombinator.com/item?id=38823514 [2]: https://news.ycombinator.com/item?id=38829531 https://news.ycombinator.com/item?id=38829531

mihalycsaba 3y ago
How big is the difference on a regular setup? And is it a same kind of cpu, with integrated graphics? One of the example you linked says 7 watt, which is impressive, but I think you could achieve similar optimizations on an amd system. Let's say I install windows or some linux desktop and don't do any optimizations, how big is the difference?
- deleted 3y ago
  [deleted]
Retric 3y ago
Idle power consumption is all over the place with AMD taking the lowest and highest spots on this chart: https://www.reddit.com/r/Amd/comments/10evt0z/ryzen_vs_intels_idle_power_consumption_whole/ https://www.reddit.com/r/Amd/comments/10evt0z/ryzen_vs_intel... Who wins depends on both the system and how it’s used.
- magicalhippo 3y ago
  I recall this blog post[1], discussed here[2] at the time, discussing how a SATA chip driver prevented the CPU from going to sleep state C6, instead keeping it at C3, leading to higher power consumption. Switching the SATA card to one with a different chip fixed that. There were other surprising factors which affected power draw. My takeaway was that as in real life, sleeping can be hard. [1]: https://mattgadient.com/7-watts-idle-on-intel-12th-13th-gen-the-foundation-for-building-a-low-power-server-nas/ https://mattgadient.com/7-watts-idle-on-intel-12th-13th-gen-... [2]: https://news.ycombinator.com/item?id=38823514 https://news.ycombinator.com/item?id=38823514
  - Dalewyn 3y ago
    In fact, you linked the exact thing I linked. :P
    - magicalhippo 3y ago
      Oh lol. Opened the links in new tab but didn't read before commenting, classic n00b fail. The "visited" look didn't phase me since I had, as mentioned, read it here before.

mihalycsaba 3y ago

How big is the difference on a regular setup? And is it a same kind of cpu, with integrated graphics? One of the example you linked says 7 watt, which is impressive, but I think you could achieve similar optimizations on an amd system. Let's say I install windows or some linux desktop and don't do any optimizations, how big is the difference?

deleted 3y ago
[deleted]

Retric 3y ago

Idle power consumption is all over the place with AMD taking the lowest and highest spots on this chart: https://www.reddit.com/r/Amd/comments/10evt0z/ryzen_vs_intels_idle_power_consumption_whole/ https://www.reddit.com/r/Amd/comments/10evt0z/ryzen_vs_intel... Who wins depends on both the system and how it’s used.

magicalhippo 3y ago
I recall this blog post[1], discussed here[2] at the time, discussing how a SATA chip driver prevented the CPU from going to sleep state C6, instead keeping it at C3, leading to higher power consumption. Switching the SATA card to one with a different chip fixed that. There were other surprising factors which affected power draw. My takeaway was that as in real life, sleeping can be hard. [1]: https://mattgadient.com/7-watts-idle-on-intel-12th-13th-gen-the-foundation-for-building-a-low-power-server-nas/ https://mattgadient.com/7-watts-idle-on-intel-12th-13th-gen-... [2]: https://news.ycombinator.com/item?id=38823514 https://news.ycombinator.com/item?id=38823514
- Dalewyn 3y ago
  In fact, you linked the exact thing I linked. :P
  - magicalhippo 3y ago
    Oh lol. Opened the links in new tab but didn't read before commenting, classic n00b fail. The "visited" look didn't phase me since I had, as mentioned, read it here before.