5 ms·

M2 MacBook Pro Can Hit 108C at Full Throttle

30 points by _hypx 4y ago

smoldesu 4y ago
Do we know the junction temp of these chips? How are they not shutting off at 100c?
- thebruce87m 4y ago
  What is the significance of 100C?
  - smoldesu 4y ago
    Most of the chips I've seen in the past decade tend to shut off on a hardware level at ~95-105c to avoid damaging the components, so I'm surprised that this chip would go beyond that point. It's not significant besides the fact it's the average point I'd expect a chip like that to turn off.
    - thebruce87m 4y ago
      Interesting, the automotive microcontrollers I’ve been involved with did 150C junction temperature but I guess it’s down to testing and yields.
smcleod 4y ago
The guy who originally posted that claims and screenshot has been creating a bunch of clickbait articles for some time, a few people have questioned the validity of his claim or at least wondered if he has a faulty unit. For example here is someone trying to replicate this but ended up seeing the complete opposite results: "Here’s the m2 MacBook Pro 13 rendering 8k canon raw footage for 15 minutes straight with no fans, no high temp, no anything." - https://twitter.com/every_daydad/status/1542534316433068033?s=21&t=GwH_SpimRO-c1tfMvNtj7w https://twitter.com/every_daydad/status/1542534316433068033?...
- sudosysgen 4y ago
  >rendering 8k canon raw footage That's a horrible benchmark for maximum thermal stress, and thus really doesn't mean anything.
- reitzensteinm 4y ago
  Isn't this hardware accelerated on the M2?
- deleted 4y ago
  [deleted]
- smoldesu 4y ago
  Of course the fans aren't turning on, you don't need to cool hardware-accelerated media processing. Both the CPU and GPU are around 0%, this is about equally as impressive as saying that the Machine Learning Engine is running at full-throttle without the fans running, or that the display brightness is maxed-out without the screen getting too hot.
_aavaa_ 4y ago
I see the Twitter thread has already been regurgitated as an article elsewhere. Discussion about the Twitter thread: https://news.ycombinator.com/item?id=31941326 https://news.ycombinator.com/item?id=31941326

30 points by _hypx 4y ago

smoldesu 4y ago

Do we know the junction temp of these chips? How are they not shutting off at 100c?

thebruce87m 4y ago
What is the significance of 100C?
- smoldesu 4y ago
  Most of the chips I've seen in the past decade tend to shut off on a hardware level at ~95-105c to avoid damaging the components, so I'm surprised that this chip would go beyond that point. It's not significant besides the fact it's the average point I'd expect a chip like that to turn off.
  - thebruce87m 4y ago
    Interesting, the automotive microcontrollers I’ve been involved with did 150C junction temperature but I guess it’s down to testing and yields.

smcleod 4y ago

The guy who originally posted that claims and screenshot has been creating a bunch of clickbait articles for some time, a few people have questioned the validity of his claim or at least wondered if he has a faulty unit. For example here is someone trying to replicate this but ended up seeing the complete opposite results: "Here’s the m2 MacBook Pro 13 rendering 8k canon raw footage for 15 minutes straight with no fans, no high temp, no anything." - https://twitter.com/every_daydad/status/1542534316433068033?s=21&t=GwH_SpimRO-c1tfMvNtj7w https://twitter.com/every_daydad/status/1542534316433068033?...

sudosysgen 4y ago
>rendering 8k canon raw footage That's a horrible benchmark for maximum thermal stress, and thus really doesn't mean anything.
reitzensteinm 4y ago
Isn't this hardware accelerated on the M2?
deleted 4y ago
[deleted]
smoldesu 4y ago
Of course the fans aren't turning on, you don't need to cool hardware-accelerated media processing. Both the CPU and GPU are around 0%, this is about equally as impressive as saying that the Machine Learning Engine is running at full-throttle without the fans running, or that the display brightness is maxed-out without the screen getting too hot.

_aavaa_ 4y ago

I see the Twitter thread has already been regurgitated as an article elsewhere. Discussion about the Twitter thread: https://news.ycombinator.com/item?id=31941326 https://news.ycombinator.com/item?id=31941326