Huawei new phone with Chinese 7nm SoC

What does it actually mean when the 5G chip comes from a 7nm fab instead of a 5nm or 3nm? Does the battery have to weigh 1g more to supply the chip with the extra power and the phone have to be 1mm³ bigger to accommodate the bigger chip and battery, or will the numbers have be bigger?

I opened an old phone when I replaced it a few years ago, and described each part to my children. The chips didn't account for much of the volume.

I realise that a 3nm chip uses less power for the same processing than a 7nm chip does. Phones are mostly idle, though. Can receive/transmit 100Mbps or whatever, do receive/transmit very, very much less. I'd be thankful if someone who really knows about phone geometry/power could explain.

Huwaeri announces their newest phone with 100% Chinese components to time with US secretary's visit

Mate60 has already been sold in China, but it is said that it is not sold to countries other than China. I wonder if there is any blogger who got this machine and filmed an explanatory video?

wait isn't 7nm pretty good, the hacker news story about a new thing by intel used 7nm too https://news.ycombinator.com/item?id=37315802 probably you could do some stuff with enough 7nm chips

> a lot of tech breakthrus needed to overcome lack of access to EUVs, TSMC foundries & American RF supply chain

and not even use EUV at all? that is a pretty small number of nanometers

Big if true.

Which Chinese fab can make 7nm chips? I thought the best they have is 14nm.

Looks like the performance is similar to SD888 - which is not bad, but far behind the current SD8 gen 2.

If Huawei can make enough of these I bet it will seriously cut into the sales of the upcoming iPhone 15 in China.