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submitted 2 months ago by Sunshine@lemmy.ca to c/linux@programming.dev
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[-] rc__buggy@sh.itjust.works 17 points 2 months ago* (last edited 2 months ago)

I don't

The bit at 9:20 "the speed at which RISC-V has advanced in the past three years"?

It's not fast enough to bring RISC-V to our desktops within the next few years. I hope I'm wrong but it's just painfully slow compared to past ARM development.

[-] TheMightyCat@lemm.ee 5 points 2 months ago

What is stopping people from bringing RISC-V to the desktop now? Major distros already support it and you can run x86 programs with box64.

What is not fast enough then?

[-] rc__buggy@sh.itjust.works 8 points 2 months ago

Decent enough processors, AFAICT.

Nothing that matches my i5-8350

[-] TheMightyCat@lemm.ee 4 points 2 months ago

Well yes the peformance ceraintly hasn't caught up yet to x86 but the strongest riscv cpu on the market as far as I know has 64 cores on 2ghz. More then enough to run a desktop.

[-] kata1yst@sh.itjust.works 13 points 2 months ago

2ghz does not measure it's computing power though, only the cycle speed. Two very different things.

An objective measure is a simple benchmark:

Here's a quad core 1.5ghz RISC-V SoC (noted as VisionFive 2) vs a quad core 1.8ghz ARM chip (noted as Raspberry Pi 400).

It's not even remotely close to usable for all but the most basic of tasks https://www.phoronix.com/review/visionfive2-riscv-benchmarks/6

[-] LeFantome@programming.dev 1 points 2 months ago

The best R5 SoC is about as fast as a Pi 4 and better in many ways but also much more expensive.

https://www.eswincomputing.com/en/bocupload/2024/06/19/17187920991529ene8q.pdf

R5 is improving faster than ARM. There are more companies designing R5 chips than ARM. The R5 software ecosystem is essentially ready and waiting.

For many workloads, the GPU or DSP is more important than the CPU. R5 is becoming viable for these use cases.

Automotive, automation, quality control, robotics, aI, are all within reach. The SBC market is just the mainstream version of that. And desktops are just further along the price / performance curve from there.

[-] rc__buggy@sh.itjust.works 4 points 2 months ago

Yeah, I've been watching. I'm waiting with baited breath when I can start using the machines for day to day. Not what I'd use a SBC for. I guess when there's a ThinkPad that has R-5 I'll really take notice.

[-] Overspark@feddit.nl 4 points 2 months ago

Framework sells a laptop with an R5 board. They warn it's intended for developers and slower than a Raspberry Pi though.

[-] rc__buggy@sh.itjust.works 1 points 2 months ago

Yeah, that's what I said.

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this post was submitted on 20 Apr 2025
82 points (94.6% liked)

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