Xiaomi's New CPU Matches Apple in Single-Core, Crushes It in Multi-Core
Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

Daniel Lemire analyzes Xiaomi's new Xring O3 processor, which matches Apple's cores in single-threaded tasks but is much faster in multithreaded execution. The chip packs 44 MB of cache, more than most laptop CPUs, and features 21 execution ports, six of which support 128-bit SIMD. Lemire highlights the trend toward massively parallel cores with extensive SIMD capabilities, though he notes Apple may soon counter with its next processor.
The biggest cores on the Xring O3 are the C1-Ultra. C1-Ultra really powerful cores. They support SME2 (Scalable Matrix Extension 2) for matrix/AI acceleration, SVE2 for data parallelism (SIMD). It is astonishingly wide, with 21 execution ports, six of which support SIMD operations (128 bits).
- ksec
This is still an ARM C1-Ultra. Same one used in Mediatek dimensity 9500, which also got more than 4000 points in GB6 lab test. But actual results inside phone with smartphone cooling and wattage requirement became close to 3300.
But perhaps the most important thing, Xiaomi is now able to make chip similar to Mediatek. They are the third largest Smartphone manufacturer by shipment volume. And they are still growing.
This is bad news for Mediatek and Qualcomm.
- strictnein
Missing the most important metric: processing power per watt.
I have some server CPUs laying around that can also beat Apple CPUs. But putting them in a compact, densely packed, sealed box (aka a phone) would result in a fireball and almost no battery life.
- comboy
This is nothing. China is about to start doing their own 5nm. When they roll out their own silicon at scale, I don't think there's catching up, nobody can match their manufacturing capabilities. Not even close.
- nerdsniper
M5 (iPad) AnTuTu: 3.5 million
XRing O3 AnTuTu: 5.5 million
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M5 iPad Geekbench Single-Core: 3,556
M5 Max Geekbench Single-Core: 4,300
XRing O3 Geekbench Single-Core: 3,945
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M5 iPad Geekbench Multi-Core: 15,285
M5 Max Geekbench Multi-Core: 29,200
XRing O3 Geekbench Multi-Core: 15,221
- LPisGood
Suspiciously ignored is power consumption. That’s the biggest and most useful metric often ignored because it’s less flashy than speed.
- trvz
"matches" could've also been written as "this year's product falls short of the competitor's last year one".
And multithreaded is 10 cores vs 6 cores.
I appreciate Apple being kept on their feet, but they're not dethroned yet.
- Alien1Being
Xiaomi also make amazing cars.
"WSJ
I Test Drove a Chinese EV. Now I Don't Want to Buy American Cars Anymore.
https://www.wsj.com/tech/personal-tech/chinese-ev-test-drive...
"
- otterley
I'm curious as to the performance per watt. There's no such thing as a free lunch.
- tambourine_man
“…of course, Apple may soon announce their next processor”
I’m pretty sure they will, as they have, like clockwork, in the same month, for over a decade.
- simjnd
The GPU performance is insane too, approaches M5 results at ~20W.
Of course it will be in Android phones so it will be throttle hard past 4W and will have terrible drivers.
I wish phones moved to HPB packaging and active cooling so we could have sustained 10W and use them as light workstations.