Comment by Aurornis
10 hours ago
> Most consumers are using laptops and laptops are not keeping pace with where the frontier is in a singular compute node.
How can you say this when Apple is releasing extremely fast M5 MacBook Pros? Or the $600 MacBook Neo that has incredible performance for that price point?
Even x86 is getting some interesting options. The Strix Halo platform has become popular with LLM users that the parts are being sold in high numbers for little desktop systems.
They're ultimately laptops, you won't be able to squeeze out the same amount of performance from a laptop compared to a desktop, regardless of the hardware.
If you haven't tried out a desktop CPU in a while, I highly recommend you giving it a try if you're used to only using laptops, even when in the same class the difference is obvious.
I have a recent MacBook Pro and a high end Zen 5 desktop.
For CPU-bound tasks like compiling they’re not that different. For GPU tasks my desktop wins by far but it also consumes many times more power to run the giant GPU.
If you think laptops are behind consumer desktops for normal tasks like compiling code you probably haven’t used a recent MacBook Pro.
> I have a recent MacBook Pro and a high end Zen 5 desktop.
What are the exact CPU models used here though? Since my point was about CPUs in the "same class", and it's really hard to see if this is actually the case here.
And yes, I've played around with the recent Apple CPUs, all the way up to M4 Pro (I think, thinking about it I'm not 100% sure) and still I'd say the same class of CPUs will do better in a desktop rather than a laptop.
If you want to compare it in the Apple ecosystem, compare the CPUs of a laptop to one of the Mac Mini/Mac Studio, and I'm sure you'll still see a difference, albeit maybe smaller than other brands.
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They're fast, but they'll never even remotely reach what a mid-range desktop PC with dedicated graphics burning 500W is able to do.
A 300W GPU released in 2025 is about 10x M5 perf. The difference is going to be smaller for CPU perf, but also not close.
> The difference is going to be smaller for CPU perf, but also not close.
This is not true. The recent MacBook Pros are every bit as fast as my Zen 5 desktop for most tasks like compiling.
For GPU there is a difference because both are constrained by thermal and power requirements where the desktop has a big advantage.
For CPU compute, the laptop can actually be faster for single threaded work and comparable for multi threaded work.
Anyone claiming laptop CPUs can’t keep up with desktop CPUs hasn’t been paying attention. The latest laptops are amazing.
> The recent MacBook Pros are every bit as fast as my Zen 5 desktop for most tasks like compiling.
Bad example. That's highly parallel, so a higher core-count die is going to destroy the base M5 here.
I don't typically compile Linux on my M5, so I don't really care, but at least online available clang benchmarks put it at roughly half the LOC/s of a 9950X, which released in 2024.
Anything single threaded it should match or even edge ahead though.
It gets for worse for multi threaded perf if you leave behind consumer-grade hardware and compare professional/workhorse level CPUs like EPYC/Threadripper/Xeon to Apple's "pro" lines. That's just a slaughter. They're roughly 3x a 9950X die for these kinds of workloads.
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For batch jobs there isn't much competition. 9995wx has 3 to 4x throughput of M5 max.
And then, if your laptop is busy, your machine is occupied - I hate that feeling. I never run heavy software on my laptop. My machine is in the cellar, I connect over ssh. My desktop and my laptop are different machines. I don't want to have to keep my laptop open and running. And I don't want to drag an expensive piece of hardware everywhere.
And then you need to use macOS. I'm not a macOS person.
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