Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Looks like some of us are not getting anywhere near the cool temperatures people like MaxTech are getting on YouTube. He had 51C during his cinebench r23 multicore test:


Updated to 12.0.1, installed TG Pro (Trial), grabbed Cinebench from App Store.

14" M1 MAX, 64 GB, 2TB

Single core:

  • 68C (max)
  • Fans Off (never turned on, according to TG Pro, but if I put my ear up on the vents at top of keyboard I can hear a faint whir.
Multi Core:
  • Went to 100C within 3-5 seconds
  • Fans showed 2400 RPM pretty quickly (at 90C)
  • Turned it off within 10 seconds or so without letting it complete.
Is something wrong with our Macs, how are reviewers getting such colder temps?
  • Friend's 16" pro exhibiting this also, his goes to 90C with fans showing no RPM.
  • Seems like some of us, fan curves are messed up.
  • MaxTech had fans spinning (1400RPM) and holding only 51C multi-core, not on my 14", burst to 100C immediately.
Are you running on battery or with external power? MaxTech was only battery, possibly resulting in lower power/temps.
 
Just throwing it out there, but if the CPU hits 100˚C in 5 seconds, that doesn't mean anything on it's own. If it throttles heavily or the case heats up extensively, then it's possible that there's a problem with your cooling solution.

If you aren't getting those symptoms, there's likely nothing to worry about, and it could likely be software compatibility issues. Otherwise, the way I understand it, the M1 chip is only limited by thermals, which does suggest that if others are reporting low temperatures when doing a burn test like Cinebench, it's likely software incompatibility on their side.

Are your Cinebench results similar to those of other people?
 
Last test and I'm done cause I'm obsessing about It lol
With this settings max temp was 82C on multicore, connected to power and the fans didn't go past 85%
I'm quite happy about it.
 

Attachments

  • Screen Shot 2021-10-28 at 10.27.53 PM.png
    Screen Shot 2021-10-28 at 10.27.53 PM.png
    2 MB · Views: 384
  • Like
Reactions: elmalloc
My M1 Max 16" plugged into AC power with 4K external monitor connected (running both internal and external display) in a 73F room, CPUs cores were around 80C, reaching to 89-91C near the middle to end of the multicore run. CPU fan ramped up to 1536 RPM as soon as cores hit 90C and kept temps 88-90C thereafter. Fans can barely be heard, case is only slightly warm to the touch, which seems interesting with core temps at 90C. Anyone know what the TjMax value is for an M1? (update: numerical value, I don't need a definition).

Anyhow, core temps not so different from M1 MBA and M1 13" Pro for Cinebench R23. My 16" 2019 Intel i9 MacBook Pro hits 99C and throttles in R23 in comparison, while scoring much, much lower. In the plugged in + 4K display scenario, the semi-idle M1 Max 16" sits at 50-55C (with zero rpm fans) with Safari running along with a few other lightweight programs. My 16" 2019 Core i9 Mac runs at 55-60C with both fans running audibly in the same scenario. Definitely a radical improvement.

More data, this time the 14" M1 Pro base model:
90-92C when 66% through the Cinebench R23 multicore test, at which point the fans come on and stay on at 2400 rpm to maintain 89-90C for the duration of the test. Room ambient temp 70F. I'll share all this and more when I post my reviews on our channel in the coming days.
 
Last edited:
Try Blender instead of Cinebench. Have never felt my MBA M1 palm rest so warm before running Blender using iGPU.
 
Sorry, I don’t understand. Do you get lower than expected performance? Other issues? If performance is fine, why do you even care about CPU temperature?
 
Sorry, I don’t understand. Do you get lower than expected performance? Other issues? If performance is fine, why do you even care about CPU temperature?
Because some YouTuber posted a video with a ridiculous result?
 
So why exactly is this better than intel?

Because it has significantly lower heat output. Heat and temperature are two different things. Anyway, temperature in the outside of the chassis is much more important than the temperature on the inside of the chassis. The first impacts usability, the latter doesn’t mean anything.
 
Three pages and no one has asked what the ambient temperature is? You can be in the middle of a dessert and it'll be 100 degrees with the laptop off.

Or maybe Maxtech was in a room blasting AC?
 
Last edited:
  • Like
Reactions: AdiQue
I don't recall if it was MaxTech or Everyday dad on youtube, but one of them mentioned that MBP 16 has +100 grams to weight if choosing Max CPU version. While 14 MBP has the same weight with Pro and Max chips. Which led to conclusion that the chips are the same weight (well that was obvious, there is no 100 gram difference in CPU size) but the CO is heavier on MBP 16 Max CPU.
In conclusion, how did you expect that your MBP 14 inch with smaller body and weaker CO will not get to 100C?
 
In conclusion, how did you expect that your MBP 14 inch with smaller body and weaker CO will not get to 100C?
But it does not reach 100C with the fans running at max speed. The extra cooling in the 16" makes the 'high power mode' possible.
 
BOY.
If these M1 Chips get that HOT 95C! and they are already as small as 5nm, going to 4nm or 3nm is looking REAL REAL SCARY to keep them from burning up and burning OUT!

I think I'll Stick with Intel. Getting something rendered a few minutes faster is no big deal if you can't keep your CPU from burning up.
 
But it does not reach 100C with the fans running at max speed.
Fans running at max speed was never the case with Apple - they are known to care about customer psychology, so late activation of fans was a reasonable expectation.

@Freeangel1, well M1 CPUs are truly decent. Today i was at zoom meeting with bunch of Safari tabs, yet it still allowed me to capture the screen, edit video in DaVinci and paste that video as a background in Zoom while being on a call. I am only limited by the 8GB ram sometimes.
 
  • Like
Reactions: elmalloc
Sorry, I don’t understand. Do you get lower than expected performance? Other issues? If performance is fine, why do you even care about CPU temperature?

Because that MaxTech youtuber posted 53C on multicore cinebench which is a ridiculously low number, if you watched the video in my first post. 53C and 97C are quite a bit different, so I was curious if my laptop is functioning as expected. My laptop idles near 50C just holding safari open lol. I don't know when the CPU is going to throttle.

If you watch his video, he compares it directly with intel mac version which "oh my gosh it goes to 98C, throttles back!"

Coming from a waterblock world (been living in ryzen and nvidia 3000 series), achieving cold and quiet is always a goal. As the above poster noted, Apple is likely conscious of their typical consumer and want to hold off ramping fans until "late". 95C to ramp the fans to 2500RPM (from 0) is curious/unusual/new to me.

I'm not saying it's not expected, but I didn't watch any review that mentioned this - did you guys?

Three pages and no one has asked what the ambient temperature is? You can be in the middle of a dessert and it'll be 100 degrees with the laptop off.

Or maybe Maxtech was in a room blasting AC?

Ambient temperature is 73C. I'm from the desktop world, getting 53c multicore is not easy, we should have known lol.

I don't recall if it was MaxTech or Everyday dad on youtube, but one of them mentioned that MBP 16 has +100 grams to weight if choosing Max CPU version. While 14 MBP has the same weight with Pro and Max chips. Which led to conclusion that the chips are the same weight (well that was obvious, there is no 100 gram difference in CPU size) but the CO is heavier on MBP 16 Max CPU.
In conclusion, how did you expect that your MBP 14 inch with smaller body and weaker CO will not get to 100C?

MaxTech confused many of us. I didn't try 2.60 TGP. He's not the only reviewer to comment how cold the laptop is though, and coming from the (AMD) PC world 97C is pretty hot for multi core. It can be expected that a smaller laptop would get hotter, sure, but reviewers are not very clear about this (and Apple is probably happy about that). TGP does report the keyboard deck temperatures which I think are probably more accurate than all the heatgun videos (like seems pretty amateurish to use a heatgun to report how the CPU is doing lol). The TGP reported keyboard deck temperatures seem "low" (IIRC, 30-40C) which is good, but I didn't do an extended multicore run, just for 10 minutes.

Also MaxTech was using 16 Pro (not max). It's not logical to think 53C on 16" and 97C on 14". I do have a max though, still, that's an incredibly large difference lol.

I'm not from the apple world, still new, this is my first apple laptop.

I'd like to see Gamers Nexus go at this thing and see his thoughts.
 
Last edited:
Sorry, I don’t understand. Do you get lower than expected performance? Other issues? If performance is fine, why do you even care about CPU temperature?
There are laws of thermo-dynamics that you have to respect.
All this "this machine is super cool" claims seem to exaggerated to a degree.
On basic settings it does pump a lot of heat. If you use it a lot and your live hood depends on it or you're planning to keep it for years, getting yourself acquainted with proper cooling methods can save you a headache or two.
 
Maximum Junction Temperature of a Semiconductor.
Yes, I know what the definition is (I review laptops and other tech for a living). I mean what is the value in C? What is max allowed temp before throttling for this chip? With Intel it's easy to find out, they post that spec. Apple not so much.
 
  • Like
Reactions: elmalloc
Yes, I know what the definition is (I review laptops and other tech for a living). I mean what is the value in C? What is max allowed temp before throttling for this chip? With Intel it's easy to find out, they post that spec. Apple not so much.

Ops, sorry. I don't think Apple will post that spec...
 
  • Like
Reactions: lisag and elmalloc
Three pages and no one has asked what the ambient temperature is? You can be in the middle of a dessert and it'll be 100 degrees with the laptop off.

Or maybe Maxtech was in a room blasting AC?
Ambient temperature probably won't make that much difference. The desert thing is a not really an issue. The 100° is 100°C not F—as in the boiling point of water.
 
Yes, I know what the definition is (I review laptops and other tech for a living). I mean what is the value in C? What is max allowed temp before throttling for this chip? With Intel it's easy to find out, they post that spec. Apple not so much.
I don't think it is published but on my M1 Air, it starts to throttle at just about exactly 100°C.
 
  • Like
Reactions: elmalloc
So why exactly is this better than intel?
Because it comes with a sticker /s ;)
isheep-300x223.jpg

Right, 53C multicore (1500 RPM) sounds impossible. But you can see it in MaxTech's video (16 m1 pro):

So either a few of our laptops are dudded, TG Pro is reporting incorrectly (for either his or ours), or this is expected out of the new m1 chips.
Just pointing out the obvious, that's a 16" witch a much better cooling system, even if TG Pro is reporting incorrectly, the 16" should run cooler unless the 14" throttles.
Sorry, I don’t understand. Do you get lower than expected performance? Other issues? If performance is fine, why do you even care about CPU temperature?
Because many people want the M1 experience, fanless or very low temperatures. But the 14"/16" is more powerful, so it comes down to simple physics, more power = higher temperature.
I would not sweat over it, seems normal.
I think I'll Stick with Intel. Getting something rendered a few minutes faster is no big deal if you can't keep your CPU from burning up.
Sure, stick with Intel. Nothing wrong there. These temperatures are fine though. You can run them that hot, they're made for that.
 
  • Haha
Reactions: matrix07
There are laws of thermo-dynamics that you have to respect.

I'm really not sure why you mean with this. The machine obviously generates heat and this heat has to be extracted. So much to thermodynamics. Why does it have to do with the CPU temperature?

All this "this machine is super cool" claims seem to exaggerated to a degree.

The "super cool" refers to the fact that it generates less heat doing mundane tasks, and can in general do more work per unit of heat than other hardware on the market.

On basic settings it does pump a lot of heat.

There is no doubt that it will pump out a lot of heat und full load, this is powerful hardware after all. But I am still not sure what this trivial observation has to do with the original post or my question.

If you use it a lot and your live hood depends on it or you're planning to keep it for years, getting yourself acquainted with proper cooling methods can save you a headache or two.

"Proper cooling methods" is letting the built in fans do their job. Again, what are you tying to say?
 
Because many people want the M1 experience, fanless or very low temperatures. But the 14"/16" is more powerful, so it comes down to simple physics, more power = higher temperature.
I would not sweat over it, seems normal.

I am sure the experience will be very similar to M1. It will get warm when you push it to full load, cool and inaudible under regular operation. The 14" will probably will be whisper quiet up to 30 watts power draw, the 16" up to 50W. And with how power efficient these things are it means that you could be running it on 100% CPU and still don't notice anything.

My M1 MBP was practically inaudible when compiling code using all CPU cores. Given the much better cooling capacity of these new machines the same would apply to them.
 
I'm really not sure why you mean with this. The machine obviously generates heat and this heat has to be extracted. So much to thermodynamics. Why does it have to do with the CPU temperature?

The "super cool" refers to the fact that it generates less heat doing mundane tasks, and can in general do more work per unit of heat than other hardware on the market.

There is no doubt that it will pump out a lot of heat und full load, this is powerful hardware after all. But I am still not sure what this trivial observation has to do with the original post or my question.

"Proper cooling methods" is letting the built in fans do their job. Again, what are you tying to say?

What you mean what it has to do with CPU temperatures? Everything lol.
I just showed that by using simple custom fan settings I was able to lover temps by approx 18 degrees C in 100% usage multicore stress test. That's almost 20% drop. Deliding CPUs doesn't even bring that kind of gains.
Without it, default fan settings allow the temperature to reach very high numbers.. Do you know what happens to objects that are exposed to temperatures like this for prolonged periods of time? And it's not just the die. Everything around it as well.

I don't know M1 PRO's throttle limit but i DO KNOW that thx to my solution I'm never going to reach it thus have access to full CPU power whenever I need it. This right here is everything I need to know.

Every computer can do mundane tasks within 50C. My Intel 16" did and my 3700X with 3080 is under 45 so what's the point you are trying to make?

And this "trivial observation" is the key to understanding how chip + energy + fans + temperature affect each other.
If you can manage to keep it in check at 100% output, you win.
 
Last edited:
  • Like
Reactions: spoonie1972
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.