Sorry didn’t notice you were looking for an Air, this is an MBP. 10 core CPU, 16 core GPU which is what will matter.
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And fans. Ok ta 
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So my wife has a MBA but I don’t have Zwift on it at present. If it would be helpful I’ll install it and see how it does with this monitor.
That’s a kind offer, thanks. Would be good to know if dropping the res avoids the (over?)heating described by the OP. How much RAM has your wife’s machine got?
I feel myself drawn to the midnight blue …
I don’t remember, I’ll check when she gets home. There is a chance it’s actually an M1, at this point I’m a bit fuzzy on when we got it.
Turns out it’s an M1 after all. Time flies…
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I ended up buying the M2 MBA. It’s lovely. I’m running at 1080p to keep the GPU relatively calm. I noticed the other day that the zwift process is tagged Apple Silicon so maybe it’s optimised now?
fwiw, Indievelo at the same res heated the machine up a lot more than zwift. Recent versions of that don’t seem too bad though. Maybe the ambient 3°C is a factor 
Yeah they did the Apple Silicon drop a few months ago. I also have an M2 and yes, the fans are on full blast in iV. Enjoy your new ride!
Hey,
does anybody made further experience how MacBook Air (M2) is performing since the Zwift Client runs natively on Apple?
Does anybody know about the performance / heat / possible resolution?
Best Regards
Jannik
I don’t normally run Zwift on my M2 but I launched it in 4k fullscreen on a 3440x1440 monitor with no issues. CPU was 140% (1.4 cores) GPU was 95%. Fan didn’t come on after 2-3 minutes.
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The MacBook Air has no fans, so it would be more at risk
Thanks for your reply James. Can you tell me what device you used for testing? A MacBook Pro?
And what means 140% CPU? Does is gave 40% more than it would normally have?
Best Regards
Jannik
It’s a Macbook Pro with a 12-core M2. The % is roughly mapped to %100 per core in the Mac activity monitor so max on this one would be something like 1200% which is kind of confusing. So Zwift isn’t using much CPU. It looks like it uses all of the GPU it can. The history below shows GPU usage jumping up to almost-full-utilization when Zwift starts and is running Just Watch mode. The CPU numbers are not all Zwift, I do have a development web server and some other tools running on this system. Not sure how this will translate to your M1 other than I do recall the M2 fan running in the past (probably before the native Apple Silicon builds were available) when using Zwift, and it no longer does.
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Another data point, FWIW. I left Zwift running in background and the fan did eventually turn on. When I went to look, it was raining and the GPU was pegged at 100%. In any case, your M1 has more processor/GPU than an Apple TV which also has no fan so as long as you don’t go too nuts with the graphics settings I would think it should work fine.
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Hey James, thank you so much for your detailed postings to my question!
It would be really interesting for me, how hot the MacBook Air M2 will be with the same settings that you have chosen for this test.
I think it will be very warm / hot with this settings. I might think about buying a MacBook Pro, because I really like to play with „the best“ possible resolution and quality.
But not sure if it‘s worth, because I do not need the performance for any other reason that much…
Best regards
Jannik
Glad I could help. I personally do 90% of my Zwifting on the ATV or an iPad but it’s fun to see how good the graphics can look on a bigger machine.
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