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malkyan

macrumors newbie
Original poster
Jan 27, 2025
1
0
Context:
I’ve been running in circles for weeks now, unable to decide on my next MBP.
Currently, I have a 14” M2 MBP and have absolutely no issues with it. I love how silent it operates and the battery life is perfect. Most of the time, I use it plugged in at my desk with two monitors.
I wouldn’t really have a reason to switch from my current machine, but upgrading to the M4 generation makes sense right now due to a couple of coincidences.

My General Use Case:
My day-to-day usage is mostly simple browsing, media consumption, writing, and scripting—often while commuting by train.
I also use Fusion360/FreeCAD to design simple things for 3D printing, and sometimes I model in Blender (mostly low poly)

The Weekend Warrior:
I already have a full plate with my daily job, but from time to time, I might spend some time experimenting with local LLMs (inference), playing around with graphics programming/game dev, or just some 'ol number crunching.
When it is needed, I use my desktop to offload everything to its discrete GPU.

tl;dr
For my regular usage, silent operation is paramount.
When I’m in full-on grind mode, I accept the noise.



The Problem:
My first idea was to get the M4 Pro 14" and gg, however, the possibility of maxing out on the RAM might offer interesting headroom for larger models. A 16" is out of the games.
I really don't want to got here, but I got fomo'ed by the loud crowd of (illiterate) influencers pretending to be tech reviewers.
Filtering out opinions from facts is challenging from comments/reddit.
My concern is the 14" unbinned M4 Max would run hot and loud even for my general use case or would ramp up and throttle at the first non -trivial load.

The Questions:
-> Is the unbinned 14” Max going to be too hot and loud on my general use case?
-> Are there any objective benchmarks/proper reviews out there? I haven’t found any for the 14".

Maybe this is the best I could find
(even though the benchmarks are synthetic and runs only for ~10 mins)
 
Is the unbinned 14” Max going to be too hot and loud on my general use case?
I have maxed the CPU on my M4 Pro, 14”, in excess of 6 minutes. The fans come on but can only be heard if I listen carefully with my ears close to machine. I don’t believe there is any throttling, I have no way to determine, so it is only a guess.
 
I have a 14" non-binned M1 Max MPB, which is known to throttle. I do everything under your General Use Cases, including Fusion 360, (though I rarely use Blender) and it stays completely silent and cool for all those tasks unless I ask Fusion to do something super computational which 7/10 times is me not knowing the right way to accomplish what I want. The fans might spin up in those cases, but the Mac stays cool and doesn't slow down.

I don't have experience in LLM's, but I do a lot of video editing in Resolve Studio and yes, when rendering or exporting a long/complex edit, I can turn the laptop into a jet engine. Outside of that, it's pretty mild mannered.

I should emphasize too, even at it's worst, the M1 Max is never as hot or as loud as an intel i7/i9 MacBook Pro.

The M4 architecture is all around more performant and efficient the M1, so I think you will not have a problem.
 
On my 14” M4 Pro (unbinned), the fans do seem to turn on when the CPU hits around 70C - which happened just now when running a local AI image generation. At 70C, the fans are apparently going at about 2,500RPM. Honestly, I can’t hear them. The fans stop very quickly when the temperature starts going down again.

At 90C, the fans hit 3,000-3,500RPM. In a quiet room, I can hear them. When the temperature lowers, the fans slow down; when it lowers again, they stop.

The fans do get louder as the CPU gets hotter and they run faster. I would say that, for me, it’s not enough to disturb my train of thought but it is sufficient to make me aware that I’m pushing the laptop harder. If you need absolute silence, you probably wouldn’t be happy.

If I’m constantly pushing the laptop and the temperature stays high then, even with the fans, the laptop gets pretty warm. Not intolerably so, but certainly noticeable (especially if it’s on my lap).

When I first got my MBP and didn’t do any LLM/AI work, I didn’t hear the fans at all (but, given that the battery lasted 11+ hours at the time, I don’t expect I was stressing it in the slightest - when doing AI/LLM constantly, I’m lucky if the battery will do 2 hours).

I can’t help with how this compares with the M4 Max in the same body.
 
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