←back to thread

Ubuntu 25.10 Raises RISC-V Profile Requirements

(www.omgubuntu.co.uk)
126 points bundie | 1 comments | 01 Jul 25 08:32 UTC | HN request time: 0.218s | source
Show context
fithisux ◴[03 Jul 25 16:45 UTC] No.44456917[source]▶
Still, no consumer based RV23 mini-ITX or micro-ATX or ATX form factor devices.

And Orange PI 2 has a GFX blob issue.

replies(2): >>44459552 #>>44460137 #
snvzz ◴[04 Jul 25 00:06 UTC] No.44460137[source]▶
>Still, no consumer based RV23 mini-ITX or micro-ATX or ATX form factor devices.

Sure. But there are RVA22+V such devices. RVA23 will eventually succeed these.

Many IP vendors announced RVA23 cores, but understand that the process from having a core design available for licensing to having a chip is very long, measured in years.

Among the designs that are further down in the pipeline of development, a highlight is Tenstorrent's Ascalon. According to them, a tapeout is "imminent". This was in the RISC-V Summit EU a few weeks ago. That'd mean RVA23 chips competitive with Zen5 in early 2026.

replies(1): >>44460492 #
dmitrygr ◴[04 Jul 25 01:43 UTC] No.44460492[source]▶
> That'd mean RVA23 chips competitive with Zen5 in early 2026

allegedly competitive, according to the vendor who is not impartial and with no actual benchmarks in existence to prove anything.

replies(2): >>44461510 #>>44465239 #
1. camel-cdr ◴[04 Jul 25 05:52 UTC] No.44461510[source]▶
None of them are competitive with Zen5 on a per core basis, if you compare the published SPEC results.

Veyron V2 has comparable perf per GHz to Zen4/5, but at a lower clock frequency (N4: 3.25, N3: 3.85): https://www.ventanamicro.com/technology/risc-v-cpu-ip/

Ascalon is about half as fast as Veyron V2, partially due to lower clock frequency (~2.6 GHz): https://riscv.or.jp/wp-content/uploads/Japan_RISC-V_day_Spri... It's really more designed as a "we need a decently fast and efficient CPU for our AI accelerator" then a "let's build the fastes CPU possible".