M3 MacBook Air Peak CPU Temperature Can Reach 114 Degrees Celcius, 33% Slower
wccftech.com
wccftech.com
Modders would work around this by putting thermal pads in between the heatsink and the back cover to transfer the heat to the aluminum under-chassis increasing the surface area and thermal mass and getting "free" performance capable of reaching the more expensive Pro models during extensive workloads like rendering.
Provided of course you never want to have the laptop on your lap ever again after that, but if you're someone like me who always uses their laptop on fixed surfaces like beds and tables and never on body parts, and you really really need that extra bit of performance, then it should be fine.
x86 CPUs and GPUs usually have a recommended load temperature of ~85°C and start throttling heavily past ~100°C, with emergency shut-off at ~120°C
I know Apple has always preferred running MacBooks hot and silent instead of cool and loud, but are they using a different solder or PCB for the M-series?
> During the game, the surface temperatures of the laptop certainly got warmer, though never uncomfortably hot. Many gaming laptops I’ve reviewed get much hotter (and louder, of course) during games. Looking at you, Razer Blade.
https://www.digitaltrends.com/computing/macbook-air-m3-gamin...
I guess if they've determined it's not detrimental it's fine, but on a MacBook Air with no fan, I can't imagine you've left much performance on the table by heat-soaking those extra ~20 degrees. The way these chips heat up that's gotta be just a few more seconds at full speed.
This is because the Internal Heat Spreader for 7000 series was made primarily with cooler height compatibility in mind. It’s compatible with all previous (aftermarket) AMD coolers, but because the chips are lower height they had to make the IHS thicker which lowers the velocity of heat transfer.
Before doing that I tried lowering the max temp instead but I think 100+ watts is just too much for the cooler I have and I couldn't tolerate the noise. I'm sure I've lost some performance but I can't tell the difference.
Granted, the chip may be designed for these temperatures, but I would assume that apple does what other manufacturers do and just assume the cases of users where high heat is not intermittent and causes premature failure will be rare enough to be inconsequential.
AMD does likewise, though their CPUs' thermal limit is 95C from what I know; I assume they have a similar warranty period to Intel.
Apple also seems fit to operate their CPUs like that.
Given all that, I'm going to presume that advances in fabbing tech mean CPUs today tolerate high temperatures better than ones from yesteryear.
Edit: midrange being midrange web and productivity, not midrange gaming, midrange CAD, midrange 3D modelling or midrange video production. (but you could always do those for at bit.. or in bursts)
You buy it if you want to get something in the ecosystem, but don't need much, and that is okay. Not everything has to be maximum all the time.
But the MacBook Air with 16g of ram and 500gig hdd costs like 1500$, but is apparently still only „meant“ for light browsing, lacks ports, only comes with a mirror (glossy) screen, and the OS is missing a bunch of basic functionality.
The MacBook seems expensive and full of compromises.
I have been researching this lately. At the 24GB config it is looking like the M3 air puts down about the same real world CPU performance as my 2019 16” i9 MacBook Pro. For light docker and development use cases these look really compelling to me.
The amazing thing is that with this iteration, you're really leaving practically all Intels behind (at least Alder Lake and earlier) as you're either just as productive, or more productive, but without the heat, power draw or constant charging.
Where do you get that idea? The M1 Air was already more than enough for all my web dev needs. I have lots of docker containers running all the time and I don't notice anything.
To pre-empt people who want to qualify "much" as something else, I even included an edit so you don't get people with a different idea on what "much" might mean in this specific context (as it has for over 10 years, none of this is really new). It appears that did not reach you in time.
You specifically probably don't want something in the ecosystem, and you do need much. As such, you should probably not buy this. Other people do exist, and they might buy it if it fits them. It doesn't matter if the numbers on paper tickle you the wrong way.
So which one is it? Is it a device with great performance, or not? It’slike people say „these things have great performance“, then somebody comes along to run some test saying „these machines throttle like crazy if you tax them, they have poor performance“, and then the the first group comes along saying „you expect too much“.
I guess they have great performance, as long as you don’t need it?
This is also why a lot of 'tests' doen't really tell you much on the actual use of the machine. Even if we can profile all users, and bucket their tasks in terms of system load you don't get a perfect testing system to compare machines.
How 'good' something is, is almost a quality factor where the only real thing you can describe is "to what degree did the device do what you expected it to do". Good quality would be "meets expectation", bad quality would be "did not do what was expected" (and you can extrapolate from there). This is also where consumer satisfaction is generally measured, people get satisfied with their stuff if they can do what they wanted to do, not because of numbers on paper or tests on a website. Ironically, this is also where building your own PC with some cool GPU, Ryzen, and a bunch of M.2 SSDs tends to be satisfying, not because those component's numbers enabled your day to be better, but because you built something and you can use it, you feel ownership and accomplishment, and that's a quality you can be satisfied about.
For an Air, the best you could probably do is describe what a user wants ("I would like to create some content, consume some media, play the odd game here and there, do some software engineering, some 2D work") and then after a while ask them how close the machine performed to their expectation. And even that will simply vary from user to user.
Even work fleets have this problem, IT departments love to standardise, but unless the work all employees perform is specified to the degree where it could be completely automated you won't be able to construct a homogeneous fleet that covers everyone's needs. So you'll always end up with cases where it's an expensive solution, a cheap solution, a bad fit, a good fit, and that just gets averaged out on a quarterly report so we can call it 'good enough'.
In neither configuration are they particularly cheap, but you’re also holistically paying for a first-party supported Unix OS with great third party support, a bandwidth level 2-4x greater than x86 laptops currently deliver (with unified memory and a good gpu for the power), very good screens/keyboards/trackpads and an aluminum chassis, a huge amount of thunderbolt with all ports at full spec, incredible battery life, etc. No, apple doesn’t compete dollar for dollar with an atom based Chromebook with a plastic body or whatever, but you also do get a much nicer machine.
This should go without saying (but seldom does) but different people have different value judgements, and different products exist for these different people. If you want to min/max your life with a $300 chromebook that's fine. Other people prefer to look at it in the "I spend 16 waking hours staring at Screens every day, I want it to be a good one". And if you are otherwise in the market for a well-specced x86 laptop, the apple stuff is not that bad, and while it does have its downsides and weaknesses it also has strengths and unique points over x86 too. You're not going to go run a LLM on that 6840U or 12700H. Have fun getting sleep to work right/waking up to a cooked laptop in your bag. Remember bluetooth problems? Me neither, they disappeared when I got issued a macbook (i9 even but the apple silicon models are better).
You see the same thing in GPUs a lot too. People fucking obsess about some numbers that largely come down to 10-15% one way or another, and you know what? If you want the NVIDIA features or (perceived or real) driver stability/herd immunity, it's fine. If you want the AMD VRAM and perf/$ advantage it's fine. It ultimately doesn't really matter all that much.
People get super wrapped into "but this one is 15% better perf/$!!! that's like half a segment!!!" but that means we might be talking about a whole $50 at the register, and if it doesn't do what you want it to, if it's going to nag and chafe at you, then just spend the money. And for some people, especially with larger purchases, there is also the psychology of "I'm spending $2500 on this Thinkpad anyway, I'm keeping it for years, I don't mind spending a little more to check boxes". Especially for what amounts to craftsmen choosing tools - we are going to stare at these machines for a long time, right?
Anyway like, there's zero question in my mind that the apple stuff smokes the latitudes or thinkpads you'd otherwise get. They're great.
Whereas most compelling reason I've seen so far for M3 over M2 is Ars Technica's review yesterday--get the M3 for the extra 2 years of supported macOS updates. Well, except that shouldn't be a compelling reason.
Build a Linux box, put it in a closet, ssh into a dev container. It’s way easier than you think.
If I ever get new hardware in my rack, this is absolutely the path I’ll take. I love the battery life and lightness of the Air, and honestly its performance is nearly always adequate for me. If it isn’t, a U worth of Epyc would solve that nicely.
Some people choose laptops over building linux boxes in closets for a reason. I can't take my closet PC with me on a train or a coffee shop.
Then there's the issue with space. If you live in a small European apartment like I do, then I have no closet, so no extra space just for a separate PC out of sight.
Then I would still need a laptop for SSH into it anyway, that closet PC won't replace it.
Except... isn't 114 C a bit much for something that sits in your lap? How about on bed sheets? Could it melt some plastic-y table cover?
These types of safety considerations are normally bread and butter considerations to any electronics manufacturer - there are plenty of guidelines and standards for them to reference and test to.
That said, the safety limits are that - safety limits. They are not necessarily comfortable. I think the safety limits for continuously held metal parts (so a MBA laptop) is like 55C. I think the rough guideline on "comfortable" is usually considered sub 40C.
Here's a review that tested sustained gaming workloads on the M3 Air.
> During the game, the surface temperatures of the laptop certainly got warmer, though never uncomfortably hot. Many gaming laptops I’ve reviewed get much hotter (and louder, of course) during games. Looking at you, Razer Blade.
https://www.digitaltrends.com/computing/macbook-air-m3-gamin...
Well, that's like "never uncomfortably loud" for video card fans. In the eye of the beholder.
Tom's Guide broke out the thermal gun and said the hot spot on the bottom of the 13 inch model was about four degrees F above normal body temps while running Cinebench on a loop. The 15 inch one got about 9 degrees F above body temp.
You certainly wouldn't need to worry about melting your table.
It's a dumb feature, though. The only benefit is fashion. There is absolutely a market for people wanting a reasonably-priced machine with reasonable (16G+) memory and reasonable performance (which requires a fan) for typical workaday jobs. That's right in the middle of the "boring windows enterprise" segment, and it sells a ton of hardware.
But Apple won't serve that market for segmentation reasons, leading to this weirdly crippled Air[1] that for a lot of geeks is sort of the worst of all worlds. Really you might as well just buy a Chromebook for half the price
[1] Whose only real selling point vs. the putative 16G+fan device we all actually want is that it's so thin you can mount it on a pole as a halberd blade for 1d10 damage.
The best part is I can do all of that shit all day long on the battery and the laptop is super easy to move/carry around.
With no modifications or extra effort any thermal throttling I've ever encountered hasn't been noticeable.
When the M1 Air first came out there were the breathless articles about thermal throttling. It's only something that will come up with extended periods of high CPU usage.
I've tried to get my Air to thermally throttle and have only been able to do so doing 3D renders or running local LLMs for long periods (over an hour in my testing). Even long compiles don't really stress the CPU so much it throttles noticeably.
The simple solution in that case was a $20 laptop stand with a fan off Amazon.
If your use case is 100% CPU usage all the time either don't get an Air or get a cheap laptop stand with a built-in fan. If your Air isn't your CI/CD build machine or part of a render farm it'll be just fine.
The devices that are sold in this market are as expensive as MacBooks or sometimes even more expensive. So I don't think this is an issue.
Also if the MacBook Air ran Windows it would be the perfect device for most workloads in this market. Because the workload common there is running a Browser, Outlook, Word, Excel and SAP (or any other ERP and CRM of your choice).
Really need to make sure you do not keep that thing on your lap or the cost of fertily treatments from your baked testicles will greatly exceed the cost of a laptop stand or even a Pro.
The reviews certainly don't say so.
> The M1 and M2 generally performed the same for light and medium-sized tasks whether they had active cooling fans on them or not, and the M3 acts the same way.
Compared to the M1, a fully enabled M3 with eight CPU cores and 10 GPU cores running some typical benchmarks has roughly 25 to 30 percent faster single-core CPU performance, 35 to 40 percent faster multi-core performance, and between 45 and 65 percent better graphics performance, depending on the test.
The numbers speak for themselves, though—however fast it throttles, a passively cooled M3 runs faster than an M1 or M2, and it stands up well against modern actively cooled laptops with Intel and AMD CPUs inside. But if you regularly stress the CPU and GPU, you're probably leaving a bit of the M3's performance on the table relative to the same chip in the $1,599 MacBook Pro.
https://arstechnica.com/gadgets/2024/03/review-apples-effici...
But if you don't spend even $200 more on the Macbook Pro to get 16GB, you are leaving a bit of the M3's performance on the table due to swapping. So, $1799. Or step up to the M3 Pro with 18GB at $1999.
And on the Air you could drop that same improvement in. So, $1,299.
Which says to me that from $1000 to $2000 there are a variety of ways to get satisfactory performance out of a long-battery M3 Macbook.
A corollary is that there is no way to get everything (unlimited multitasking, unthrottled renders, no swapping, no IO constraints) you could want out of a $999 Macbook Air M2/8GB/256GB.
Linked article is literally a review that says so.
Hacker News's title length limitation makes the title here incredibly misleading, the full title says "33% Slower Than MacBook Pro".
"M2 to M3 Air isn't as significant as it should be" might still be true though. How did you arrive at this conclusion? What benchmarks are you basing your opinion on? What is the actual improvement from M2 to M3 according to the metrics you care about, and what do you think the improvement should have been?
Without scientific data I only guess that overwhelming amount of users will not give a damn loosing out on tons of performance in an ultraportable consumer device having thousands of tons of performance already much below the peak performance lost, unused.
Of course, most want to buy a cheaper model when they are unable to use the performance of supercomputers decades ago in browsing or text editing, or just reading. Which is true for decades concerning products aimed at everyday people. The fallacy of performance and other specification battle is meaningless for lots of consumers and chased by specialty users mostly, apart from the attention seeking marketing folks.
It might’ve changed since then but the difference was pretty pronounced with Google Meet a few years ago. In Chrome it roasted laps but in Safari it barely moved the needle.
I highly doubt M3 macs are any worse.
I don’t know who thought shoving an i9 into a laptop designed to be sleek and quiet was a good idea, but they were mistaken.
Oh, also, my base (8 GB RAM, 256 GB SSD) M1 Air destroyed the i9 in actual workloads.
So yours are probably MBPros not Airs. Those have a fan.
People who buy air are not supposed to run heavy applications; they are mostly folks in suits running spreadsheets or presentations; at least, that's my observation.
I've been buying MBAs since they first came out because I want my portable computer to be portable and am willing to give up a certain amount in furtherance of that goal.
At home/office you can plug it into a full-sized monitor and keyboard (if you want) without losing the portability factor when you're on the road.
C'mon guys, you sized the M3 Pro down and everything, I know it'll fit. Yeah, it'll throttle under heavy load but that's what MBAs do. The 15" chassis is overkill for the M3 base-tier and it'll be fine, and that's the buy-in for multiple displays. M3 is a great tablet/ultraportable but it's still ultimately not an ultrabook chip.
Personally I happened to have ultrawide already so it was not the end of the world using a MBA for a while with my single external screen... but it's a bad limitation and there's no real solution except either putting the 2nd display controller on M3 (probably not going to happen for cost reasons) or putting the M3 Pro in the 15" chassis.
Even if you think it's part of some strategy to price-ladder you into the MBP... surely having another rung on the ladder is part of the game too? ;)
Hopefully we see it with the N3E variants that should be releasing sometime this year...
Let's just say it's been retired while my 2012 is still going strong (my not-so-technically-inclined partner uses it for basic browsing).
I now have a 15" M2 MacBook Air and I have to say: this machine is the laptop of my dreams. It could be one of the best computers I've ever owned.
Now I'm just holding out for a 27" or larger iMac. I have a 24" M1 iMac and while I have gotten used to the screen being smaller, I still really could use the extra real-estate.
I am a web developer and media producer. These machines handle Premiere Pro and Blender just fine for my purposes. I have zero interest in getting the Studio.
I balked at spending over $700 to replace the screen. It definitely was leaps and bounds more performant than my 2012. I also hated the lack of MagSafe.
I usually baby my computers, but I did accidentally step on my 2012 MacBook Air when I was in college (I had placed it on stairs while doing a photo shoot with some classmates). It was fine.
My 2012 can't receive macOS and Adobe upgrades, but my partner is happily using it for basic browsing and photo editing.
I don’t think that’s going to happen, unfortunately. It was a great machine with great price/performance ratio. You could even upgrade its RAM without an engineering degree. But Apple seems to think the solution is Studio + external display, for this decade.
Hell, add in multiple intensive browser tabs, a few large Excel sheets, and VSCode open to a large Rust project with rust-analyzer running and still, the processor will hardly even get hot. I’ve done all of this on an M2 with zero problem whatsoever.
To be fair, I felt compelled to spend hundreds of dollars extra on 24GB and 1TB to address the swapping and IO constraints that exist at the 8G/256GB price point.
Oh now I see you edited your post. Do you have any reference that this is affecting the pro series? I just got an M3 Max-based MBP for work and everything seems to work great so far.
Care to give any examples? My work M1 Pro gets moderately hot only when IntelliJ starts indexing multimillion line codebase.
For example, putting a metal plate below it while working, would that increase the peak performance noticeably?
Edit: the article refers to adding thermal pads as in https://wccftech.com/m2-macbook-air-overheating-problems-sol...
Still open to other suggestions :)
The HN title should be changed to reflect the fact that it's 33% slower than the MacBook Pro.
Waste of bytes
This is such clickbait it's no wonder why there are people that have a seething hate for Apple. Nothing has competed with Apple laptops since the M1 dropped.
That's not remotely true.
But having a super thin laptop that does 4K Video editing and has an really good battery life doing it, is amazing.
What they can do with 30W from the wall is simply amazing. Not even talking about the Pro/Max Chips that can decode and encode several ProRes Streams at once.
But again, some people don't just edit hi res video.
I want completely silent laptop that doesn’t get dust inside of it.
And please note the original quote that I responded to. They referenced all Apple laptops with the M1 and later chips.