Why E cores make Apple silicon fast
https://eclecticlight.co/2026/02/08/last-week-on-my-mac-why-e-cores-make-apple-silicon-fast/
Why E cores make Apple silicon fast
https://eclecticlight.co/2026/02/08/last-week-on-my-mac-why-e-cores-make-apple-silicon-fast/
Genuine question, when people talk about apple silicon being fast, is the comparison to windows intel laptops, or Mac intel architecture?
Because, when running a Linux intel laptop, even with crowd strike and a LOT of corporate ware, there is no slowness.
When blogs talk about "fast" like this I always assumed it was for heavy lifting, such as video editing or AI stuff, not just day to day regular stuff.
I'm confused, is there a speed difference in day to day corporate work between new Macs and new Linux laptops?
Thank you
First of all, Apple CPUs are not the fastest. In fact top 20 fastest CPUs right now is probably an AMD and Intel only affair.
Apples CPUs are most powerful efficient however, due to a bunch of design and manufacturing choices.
But to answer your question, yes Windows 11 with modern security crap feels 2-3 slower than vanilla Linux on the same hardware.
> First of all, Apple CPUs are not the fastest.
The cores are. Nothing is beating a M4/M5 on single CPU performance, and per-cycle nothing is even particularly close.
At the whole-chip level, there are bigger devices from the x86 vendors which will pull ahead on parallel benchmarks. And Apple's unfortunate allergy to effective cooling techniques (like, "faster fans move more air") means that they tend to throttle on chip-scale loads[1].
But if you just want to Run One Thing really fast, which even today still correlates better to "machine feels fast" than parallel loads, Apple is the undisputed king.
[1] One of the reasons Geekbench 6, which controversially includes cooling pauses, looks so much better for Apple than version 5 did.
Same. It’s always disappointing when otherwise promising competing laptops turn out to be considerably more noisy if you’re doing anything more intense than using MS Paint.
It’s probably the single most common corner to cut in x86 laptops. Manufacturers love to shove hot chips into a chassis too thin for them and then toss in whatever cheap tiny-whiny-fan cooling solution they happen to have on hand. Result: laptop sounds like a jet engine when the CPU is being pushed.
Even something like MS Paint can turn a laptop in to a aircraft.
The issue is actually very simple. In order to gain more performance, manufactures like AMD / Intel for a long time have been in a race for the highest frequency but if you have some knowhow in hardware, you know that higher frequency = more power draw the higher you clock.
So you open your MS Paint, and ... your CPU pushes to 5.2Ghz, and it gets fed 15W on a single core. This creates a heat spike in the sensors, and your fans on laptops, all too often are set to react very fast. And VROOOOEEEEM goes your fan as the CPU Temp sensor hits 80C on a single core, just for a second. But wait, your MS Paint is open, and down goes the fan. And repeat, repeat, repeat ...
Notice how Apple focused on running their CPUs no higher then 4.2Ghz or something... So even if their CPU boosts to 100%, that thermal peak will be maybe 7W.
Now combine that with Apple using a much more tolerant fan / temp sensor setup. They say: 100C is perfectly acceptable. So when your CPU boosts, its not dumping 15W, but only 7W. And because the fan reaction threshold is so high, the fans do not react on any Apple product. Unless you run a single or MT process for a LONG time.
And even then, the fans will only ramp up slowly if your 100C has been going on for a few seconds, and while yes, your CPU will be thermal throttling while the fans spin up. But you do not feel this effect.
That is the real magic of Apple. Yes, their CPUs are masterpieces at how they get so much performance from a lower frequency, but the real kicker is their thermal / fan profile design.
The wife has a old Apple clone laptop from 2018. Thing is for 99.9% of the time silent. No fans, nothing. Because Xiaomi used the same tricks on that laptop, allowing it to boost to the max, without triggering the fan ramping. And when it triggers with a long running process, they use a very low fan rpm until it goes way too high. I had laptops with the same CPU from other brands in the same time periode, and they all had annoying fan profiles. That showed me that a lot of Apple magic is good design around the hardware/software/fan.
But ironically, that magic has been forgotten in later models by Xiaomi ... Tsk!
Manufactures think: Its better if millions of people suffer from more noise, then if we need to have a few thousand laptops that die / get damaged, from too much heat. So ramp up the fans!!!
> Notice how Apple focused on running their CPUs no higher then 4.2Ghz or something... So even if their CPU boosts to 100%, that thermal peak will be maybe 7W.
If you max out your processor it will be more than happy to draw 20W+