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224 points cspags | 1 comments | | HN request time: 0.236s | source
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fizzynut ◴[] No.46178450[source]
Honestly if you actually need high end specs then you should just build a PC.

"16 core Zen 5 CPU, 40 core RDNA 3.5 GPU. 64GB of LPDDR5X RAM @ 256 GB/s + stunning OLED" - Easily done as a pc build.

In a world where you can get this laptop with Linux, there's a new set of trade-offs -

- be prepared for a LOT of things not working because the size of the market for extremely expensive configurations with high end CPU + GPU + RAM + Monitor + Linux is practically zero.

- when closing the lid and walking to the coffee shop will the battery be dead before you finish your coffee? probably

- will a new GPU/GPU architecture be a headache for the first X years...yes, and if you want to replace every 2 years, I guess you will have a permanent headache.

- will updating graphics drivers be a problem? yes

- is the text in your "stunning oled" going to be rendered correctly in linux? probably not

- will the wifi chip work in linux? maybe

- will all the ports work/behave? probably not

- will your machine perform worse than a high end PC that cost 1/2 as much from 3 years ago... yes.

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energy123 ◴[] No.46178625[source]
Is his build even possible today in a laptop?

In a desktop, you would need a top of the line threadripper for that 256GB/s of memory bandwidth.

Consumer grade Zen 5 desktops reach only about 80GB/s in real world testing, with a theoretical max of slightly over 100GB/s.

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1. dinosaurdynasty ◴[] No.46178653[source]
AMD Strix Halo (a consumer mobile processor) has theoretical support for 256GB/s of memory bandwidth (quad-channel, 8000 MT/s LPDDR5X, must be soldered, supports 128GB at most).