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bill-p

macrumors 68030
Original poster
Jul 23, 2011
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So now I have a MacBook Air M1 with me as well and I have tested the device for a day.

People kept complaining about battery life and heat on the 14" due to all of these Youtube videos showing benchmarks and such, but I would like to share my personal experience:

1. There is ZERO difference in battery run time between the MacBook Air and the 14" M1 Pro with 10 cores. I have tried everything. They basically get the same battery run time with the exact same tasks, whether it is light computing or heavy computing (playing games, modeling in Fusion 360, photo editing in Capture One Pro). Both get about 10-12 hours under light use, and worst case about 2-3 hours when CPU + GPU are stressed to their absolute limits.
2. The 14" M1 Pro is still a lot faster than Air M1 even in Low Power Mode.
3. In Low Power Mode, the Air is... not bad but it's very very slow in comparison to the 14".
4. In Low Power Mode, both still get the exact same battery life with light use. That means the Air and the 14" get the exact same run time to me when both are in Low Power Mode.
5. In Low Power Mode, the fan in the 14" NEVER goes above 2300RPM no matter what I tried. Even Cinebench on loop for a whole 2 hours on top of a blanket did not get the fan beyond 2300RPM. It seems Low Power Mode is just Apple limiting the 14" to a certain power draw package? Need more confirmation on this, but I honestly could not get it to beyond 25-30W. Also, 2300RPM with the 14" is SILENT. My office's ambient noise level is 26dB and I can clearly hear any slight buzzing. Even putting my phone over the 14" vents did not detect any noise above ambient here. Practically, the 14" in Low Power Mode is as silent as the MacBook Air.
6. Without Low Power Mode, then yeah, the 14" will blast the fan when the CPU is stressed a lot and power consumption of the SoC goes beyond 35W. Even then, it's not maxing out the fan and it's more of a low whir. But without Low Power Mode, the 14" is over twice as fast as the MacBook Air at literally everything... from opening apps to running tasks.
6. The Air's max brightness is about 13.5 to 14 out of the 16 steps of brightness on the 14". Obviously the screen on the 14" is much nicer and much sharper.
7. The Pro's speakers are far better than the Air. I think that goes without saying.
8. The Pro charges up much faster than the Air. The Air takes about 3 hours to fully charge from 5% to 100%. The Pro takes 2 hours with a 100W charger. If that sounds like a lot, it took almost an hour for the Air to reach 50% but the Pro took only about 25 minutes or so. By the 1-hour mark, the Pro was already around 75 - 80%. This was with me still pushing the machine all that time.

So my conclusion: the Air is a good entry level machine, but... honestly, if I wanted the same configuration (16GB RAM and 1TB SSD) as my 14", I'd have to spend $1599 (or $1649 if I wanted that extra GPU core). At that point, it's pretty close to the base 14" Pro. I'd totally want to spend the extra $1000 for:

1. Twice the performance at all of my tasks, even in Low Power Mode
2. More ports
3. 4x bigger Touch ID button (matters a lot if you end up using Touch ID a lot) + 2x bigger Esc key
4. Better speakers
5. Better screen, and brighter outdoors
6. Faster charging
7. Slightly bigger trackpad
8. More screen real estate
9. Better webcam (relevant since I also do Zoom quite a lot)

Also I had the M1 13" Pro (just sold it recently) and the only thing I could say about the 13" Pro was... it might have lasted slightly longer under light computing tasks? And that's it.

Overall, from my point of view, the 14" is totally a worthy upgrade over the Air if anyone can afford it. But with that said, I got this Air for $849 on a recent deal. And at that price point, honestly... this is probably the best value for anyone's money. If I didn't need the extra performance of the 14" and I was on a tight budget, I'd totally go for this Air. It is plenty fast for random office tasks and Youtube. Plus it is absolutely silent and there's not much of a reason to go with Low Power Mode on it since it's not going to gain anything (but it loses quite a bit of performance). Oh, and also: no notch!
 

jabbr

macrumors 6502
Apr 15, 2012
384
293
I have both of these computers and I seem to be able to get an extra hour or so out of the MBA… not a big deal

I haven’t tested the low power mode tho!

Why do you think Apple seems to have given a conservative 11 hours web rating to the 14”?
 
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bill-p

macrumors 68030
Original poster
Jul 23, 2011
2,929
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I get about 19 hours per charge on my MBA. Not sure where you are getting the tiny 12 hours from.

12 hours of screen-on time. I don't just leave the computer idle or turn the display off or close it to let it sleep and claim that's "battery life".

For me, it's continuous screen-on time that matters.

Also, in case you are wondering, I constantly push my computers at about 50% brightness (60% for the MacBook Air since it's less bright) because my office is quite bright.
 
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bill-p

macrumors 68030
Original poster
Jul 23, 2011
2,929
1,589
I have both of these computers and I seem to be able to get an extra hour or so out of the MBA… not a big deal

I haven’t tested the low power mode tho!

Why do you think Apple seems to have given a conservative 11 hours web rating to the 14”?

If HDR movies are played back on the 14" continuously, then it actually gets only... 5-6 hours on battery! The problem is that the screen can get very bright and suck a lot of battery. I'm guessing they took that into account during their battery test.
 
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dogslobber

macrumors 601
Oct 19, 2014
4,670
7,809
Apple Campus, Cupertino CA
12 hours of screen-on time. I don't just leave the computer idle or turn the display off or close it to let it sleep and claim that's "battery life".

For me, it's continuous screen-on time that matters.

Also, in case you are wondering, I constantly push my computers at about 50% brightness (60% for the MacBook Air since it's less bright) because my office is quite bright.
It sounds like your MBA isn't functioning as expected on battery. I use mine all day, every day on battery, with screen on at about 40% full brightness. Sounds like your system more than anything else.
 

bill-p

macrumors 68030
Original poster
Jul 23, 2011
2,929
1,589
It sounds like your MBA isn't functioning as expected on battery. I use mine all day, every day on battery, with screen on at about 40% full brightness. Sounds like your system more than anything else.

Well, maybe my light usage is much more intensive than I thought. I don't know. Let's just say that's what I'm seeing with the screen on continuously at 60% brightness.

Also, I am not alone:
https://www.reddit.com/r/macbook/comments/lewlc4
And in case you're thinking I'm just making all of this up...

IMG_4555.jpg


We got the MacBook Air for my sister-in-law. I'm helping her set it up before sending it out.
 
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dmr727

macrumors G4
Dec 29, 2007
10,669
5,770
NYC
I travel a lot, so I ended up with the Air simply because I found the 14" MBP to be a bit bigger and heavier than I wanted. But from a pure price/performance/features standpoint I agree that a base MBP probably makes more sense than a fully decked out Air.
 
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dogslobber

macrumors 601
Oct 19, 2014
4,670
7,809
Apple Campus, Cupertino CA
Well, maybe my light usage is much more intensive than I thought. I don't know. Let's just say that's what I'm seeing with the screen on continuously at 60% brightness.

Also, I am not alone:

And in case you're thinking I'm just making all of this up...
[...]
We got the MacBook Air for my sister-in-law. I'm helping her set it up before sending it out.
I get that's what you're seeing and I don't mean to imply you're faking it. My M1 MBA has had 18-20 hour battery life for my workflow which is web work, VNC client to VMs and such. I don't generally allow this machine to have any type of CPU load as I know that is a killer to battery life. I use macOS Stats app to track so keep an eye out to see if anything is causing your machine to have high CPU load.
 

anonymous888

macrumors member
Nov 24, 2018
81
56
India
It sounds like your MBA isn't functioning as expected on battery. I use mine all day, every day on battery, with screen on at about 40% full brightness. Sounds like your system more than anything else.
Brightness is the most important factor. I keep mine at 100%. Can not stand low brightness. I have never gotten more than 6-6.5 hours SOT.
I also use Brave not Safari.
 

anonymous888

macrumors member
Nov 24, 2018
81
56
India
100%? That’s like looking at a bright torch to my eyes. Brave is Chrome based which is pretty efficient nowadays.
MBA is only 400Nits. I know your eyes get used to it but I swear I just can not stand low brightness. Haha
I get annoyed when people show me pictures on their phones and their brightness is turned all the way down. :p
 

0128672

Cancelled
Apr 16, 2020
5,962
4,783
Heh! Maybe it has to do with the lighting we're used to having in the room - I can't stand having my Air's brightness up beyond 50%, and usually it's around 30%. :)
Same here and I also use Reduce White Point accessibility feature all the time.
 
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bill-p

macrumors 68030
Original poster
Jul 23, 2011
2,929
1,589
I get that's what you're seeing and I don't mean to imply you're faking it. My M1 MBA has had 18-20 hour battery life for my workflow which is web work, VNC client to VMs and such. I don't generally allow this machine to have any type of CPU load as I know that is a killer to battery life. I use macOS Stats app to track so keep an eye out to see if anything is causing your machine to have high CPU load.

Honestly, I think you're kind of going out of your way to not use the MacBook Air for computing.

Personally, I push my computers pretty hard in actual use, and I don't want to have to bother with screen brightness or otherwise. These are supposed to be tools, not... cruising devices.

I think that's where our use case differs, and precisely why the 14" is the better fit for me: I wanted a faster device than the M1. Battery life is nice, but I honestly don't mind it too much as long as it lasts long enough. Faster performance while still staying relatively cool and quiet is much more important to me.
 

bobcomer

macrumors 601
May 18, 2015
4,949
3,699
with screen on at about 40% full brightness.
That probably explains it more than anything. I don't have good enough eyes to see 40% brightness, even in dim light, and I don't like dim light! I'm close to full brightness on my MBA.
 

andrewstirling

macrumors 6502a
May 19, 2015
715
425
MBA is only 400Nits. I know your eyes get used to it but I swear I just can not stand low brightness. Haha
I get annoyed when people show me pictures on their phones and their brightness is turned all the way down. :p

High brightness causes lots and lots of missing detail in the picture. Do you do the same with your tv?
 
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Love-hate 🍏 relationship

macrumors 68040
Sep 19, 2021
3,057
3,235
Actually for HDR movies the runtime is 4h according to notebook check :)) .as for editing HDR videos idk,since only one part of the screen will be in HDR while the other may still be SDR (perhaps am i wrong however.in any case the edition part of the screen won't be that bright so...)
Oh and hey,it's you my man,hadn't noticed !
If HDR movies are played back on the 14" continuously, then it actually gets only... 5-6 hours on battery! The problem is that the screen can get very bright and suck a lot of battery. I'm guessing they took that into account during their battery test.
 

Love-hate 🍏 relationship

macrumors 68040
Sep 19, 2021
3,057
3,235
So now I have a MacBook Air M1 with me as well and I have tested the device for a day.

People kept complaining about battery life and heat on the 14" due to all of these Youtube videos showing benchmarks and such, but I would like to share my personal experience:

1. There is ZERO difference in battery run time between the MacBook Air and the 14" M1 Pro with 10 cores. I have tried everything. They basically get the same battery run time with the exact same tasks, whether it is light computing or heavy computing (playing games, modeling in Fusion 360, photo editing in Capture One Pro). Both get about 10-12 hours under light use, and worst case about 2-3 hours when CPU + GPU are stressed to their absolute limits.
2. The 14" M1 Pro is still a lot faster than Air M1 even in Low Power Mode.
3. In Low Power Mode, the Air is... not bad but it's very very slow in comparison to the 14".
4. In Low Power Mode, both still get the exact same battery life with light use. That means the Air and the 14" get the exact same run time to me when both are in Low Power Mode.
5. In Low Power Mode, the fan in the 14" NEVER goes above 2300RPM no matter what I tried. Even Cinebench on loop for a whole 2 hours on top of a blanket did not get the fan beyond 2300RPM. It seems Low Power Mode is just Apple limiting the 14" to a certain power draw package? Need more confirmation on this, but I honestly could not get it to beyond 25-30W. Also, 2300RPM with the 14" is SILENT. My office's ambient noise level is 26dB and I can clearly hear any slight buzzing. Even putting my phone over the 14" vents did not detect any noise above ambient here. Practically, the 14" in Low Power Mode is as silent as the MacBook Air.
6. Without Low Power Mode, then yeah, the 14" will blast the fan when the CPU is stressed a lot and power consumption of the SoC goes beyond 35W. Even then, it's not maxing out the fan and it's more of a low whir. But without Low Power Mode, the 14" is over twice as fast as the MacBook Air at literally everything... from opening apps to running tasks.
6. The Air's max brightness is about 13.5 to 14 out of the 16 steps of brightness on the 14". Obviously the screen on the 14" is much nicer and much sharper.
7. The Pro's speakers are far better than the Air. I think that goes without saying.
8. The Pro charges up much faster than the Air. The Air takes about 3 hours to fully charge from 5% to 100%. The Pro takes 2 hours with a 100W charger. If that sounds like a lot, it took almost an hour for the Air to reach 50% but the Pro took only about 25 minutes or so. By the 1-hour mark, the Pro was already around 75 - 80%. This was with me still pushing the machine all that time.

So my conclusion: the Air is a good entry level machine, but... honestly, if I wanted the same configuration (16GB RAM and 1TB SSD) as my 14", I'd have to spend $1599 (or $1649 if I wanted that extra GPU core). At that point, it's pretty close to the base 14" Pro. I'd totally want to spend the extra $1000 for:

1. Twice the performance at all of my tasks, even in Low Power Mode
2. More ports
3. 4x bigger Touch ID button (matters a lot if you end up using Touch ID a lot) + 2x bigger Esc key
4. Better speakers
5. Better screen, and brighter outdoors
6. Faster charging
7. Slightly bigger trackpad
8. More screen real estate
9. Better webcam (relevant since I also do Zoom quite a lot)

Also I had the M1 13" Pro (just sold it recently) and the only thing I could say about the 13" Pro was... it might have lasted slightly longer under light computing tasks? And that's it.

Overall, from my point of view, the 14" is totally a worthy upgrade over the Air if anyone can afford it. But with that said, I got this Air for $849 on a recent deal. And at that price point, honestly... this is probably the best value for anyone's money. If I didn't need the extra performance of the 14" and I was on a tight budget, I'd totally go for this Air. It is plenty fast for random office tasks and Youtube. Plus it is absolutely silent and there's not much of a reason to go with Low Power Mode on it since it's not going to gain anything (but it loses quite a bit of performance). Oh, and also: no notch!
Bill,there's a big flaw in your comparison,and it's the fact that the mbp14 you have isnt the base binned model,but the 10/16 .I'm not sure the 8/14 will still have better performance,even in low power mode ,while consuming the same etc.
Yet when you talk about purchase decision,you keep comparing it with the 14 base( and even state it clearly when you say ", it's pretty close to the base 14" Pro" )...
 
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TopToffee

macrumors 65816
Jul 9, 2008
1,070
992
Couldn't disagree more on the battery life differences.

And honestly the speed difference depend entirely on what tasks you're doing and (particularly) the level of threading.
 

dogslobber

macrumors 601
Oct 19, 2014
4,670
7,809
Apple Campus, Cupertino CA
Honestly, I think you're kind of going out of your way to not use the MacBook Air for computing.

Personally, I push my computers pretty hard in actual use, and I don't want to have to bother with screen brightness or otherwise. These are supposed to be tools, not... cruising devices.

I think that's where our use case differs, and precisely why the 14" is the better fit for me: I wanted a faster device than the M1. Battery life is nice, but I honestly don't mind it too much as long as it lasts long enough. Faster performance while still staying relatively cool and quiet is much more important to me.
I use my M1 MBA for my use cases, which is the most important thing to me. What I will say is that the MBA isn't designed to be use for high CPU tasks as it doesn't have a fan. If you want to use high CPU tasks then doing it on battery only is illogical but entirely your right. As to your "cruising devices" comment, that's disingenuous to those who don't meet your expectations of how a computing device should be used. Totally irrational logic.
 
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