this post was submitted on 08 Jan 2024
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102
The most exciting 2024 tech isn't AI (www.spacebar.news)
submitted 10 months ago by [email protected] to c/technology
56 comments fedilink hide all child comments
 

2024 might be the breakout year for efficient ARM chips in desktop and laptop PCs.

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[–] [email protected] 13 points 10 months ago (1 children)

Here's a speed comparison between Qualcomm and AMD's best cpus from last year. Same TDP.

Amd's chip runs on 28 watts and is built on 4nm, qc's runs on 7 watts and is built on 5nm. They are not equivalent.

AMD's x86 CPUs are actually faster and more efficient than Apple's ARM CPUs on the same 5nm process node, but Apple is consistently 2 years ahead when it comes to silicon manufacturing, because of their TSMC deals.

Comparing amd 7840u pro (4 nm, 28W) with apple m2 pro 10 core (5 nm, 28W), amd is 7% faster in single core and 10% faster in multi core. It's unclear how it would be if they were on the same node. Feels they'd be the same

[–] [email protected] 2 points 10 months ago (1 children)

I think the QC chip is 28 watts too. They use the same chassis as the Intel chip.

That is a good point that AMD's node is technically slightly newer, even though they are both 5nm class. TSMC's N4P is claimed to be up to 5% faster or 10% more power efficient than N5P. So, fair enough, they're about even.

https://www.techradar.com/news/the-future-of-leading-edge-chips-according-to-tsmc-5nm-4nm-3nm-and-beyond

https://www.tomshardware.com/news/tsmc-announces-n4p-process-a-refined-n4-chip-node

[–] [email protected] 0 points 10 months ago* (last edited 10 months ago)

I think chassis choice is just to keep it consistent. Sq3 is apparently based on 8cx gen3 which runs on 7 watts. The site you linked says sq3 has 4 medium and 4 small cores, but judging by how they run at the same frequencies as 8cx's 4 large and 4 medium cores and the benchmark scores of the two chips being pretty much the same, I think it's safe to say they're the same chip. At the very least if sq3 pulled 4x the power to produce the same result Microsoft would just use the 8cx gen3