[glennpratt]

Lightroom Classic (latest version) is unpleasant on my wife's M1 and even crashes. Last night I moved it over to my gaming PC which is pretty old, but performs much better.

It ran on her 2012 Intel MBP and whatever dayjob MBP I had in the past.

[matwood]

LR CC runs much much better on my M1 MBA than my prior 2017 MBP. I wonder if Adobe is just dragging their feet on updating classic since they want everyone moved to CC?

[rStar]

i’m hoping adobe has yet to fully optimize for the new architecture, and i’m also hoping they care to do so

[smoldesu]

It could also be that x86 has better SIMD support by a considerable margin, which can make repetitive memory access/serialized workloads a lot faster. I'm not super well intimated with those extensions, but I know that the NEON SIMD implementation in ARMv8 leaves quite a bit to be desired. It's a tricky situation, and one I don't see resolving in a nice clean way. It's stuff like this that makes me hopeful for RISC-V though, where we could theoretically have our cake and eat it too, with dynamic instruction pipelines and incredibly low power usage. Only time will tell, I suppose.

[my123]

Throughput is not an issue on the M1, with 4x 128-bit SIMD units.

Neon is certainly not a bad SIMD ISA, it's a quite orthogonal one.

You also have the AMX extension at hand, which is more special purpose but allow to deliver very high throughput. (on a regular M1: 350Gflops DGEMM, 1.2Tflops SGEMM, without leveraging anything other than the CPU)

[aledalgrande]

NEON can work pretty well and has been used in real time tasks on mobile for a long time. Example operations:

https://github.com/thenifty/neon-guide/

[0des]

May I ask why you purchased the M1 model?

[glennpratt]

To replace the 2012 which was mostly OK, but had blown speakers.

I still have an Intel MBP provided by my employer. I don't keep a personal laptop, it would just gather dust 99% of the time.

[0des]

First, thank you for your reply. I am curious, after this experience, would your next machine be also an Apple with M1 (or the next iteration of it), assuming nothing else goes wrong?

[glennpratt]

Probably, this is my wife's computer.

We aren't attached to Apple, but finding build quality, battery life, high quality screen and likely to last 10 years is hard elsewhere.

[0des]

Thanks for the insight, I hope it works out for you all.