Initial Benchmarks Of The SpacemiT K3 RVA23 RISC-V CPU With The K3 Pico-ITX - Phoronix
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Initial Benchmarks Of The SpacemiT K3 RVA23 RISC-V CPU With The K3 Pico-ITX
Written by Michael Larabel in Processors on 20 May 2026 at 11:43 AM EDT. Page 1 of 4 . 5 Comments.
One of the RISC-V SoCs we have been most looking forward to this year is the SpacemiT K3 that features the X100 RISC-V cores that are RVA23 compliant and among the first readily available RVA23 RISC-V platform for running on the likes of Ubuntu 26.04 LTS. In this article is a preview of some very early benchmarks of the SpacemiT K3 with the new Pico-ITX single board computer offering.
The SpacemiT K3 features eight X100 RISC-V cores as well as eight ultra-wide parallel AI computing A100 cores. The X100 cores clock up to 2.4GHz and are RVA23 profile compliant and largely associated as delivering similar performance to the Arm Cortex-A76 cores. The A100 AI cores support INT4 / INT8 / FP8 / FP16 / BF16 and rated for around 60 TOPS API performance. The A100 cores are also among the few RISC-V cores so far available that support RVV 1.0 vector processing.
The SpacemiT K3 Pico-ITX is an interesting little board that pairs the K3 SoC with 10Gb networking, UFS storage, dual M.2 expansion slots, USB Type-C with power delivery and 4K DisplayPort output, and dual channel LPDDR5-6400 memory with 16GB and 32GB configurations offered.
The SpacemiT K3 Pico-ITX review sample arrived within their "mini AI computer" offering where there is a convenient chassis around the size of former Intel NUC devices. This allows for a very nice out-of-the-box experience and quick to get going with the K3 SoC. Preloaded on the system was the Bianbu 4.0 distribution that is derived from Ubuntu Linux. Upstream Ubuntu 26.04 LTS as well as Fedora and other Linux distributions are also supported on it.
The 10 GbE SFP+, Gigabit Ethernet, four USB Type-A ports, two USB-C and one with DisplayPort output and power delivery are on the rear.
With the USB-C port being used for both power delivery and DisplayPort output, you will need to either be using a USB-C monitor or having a USB-C dock/hub for splitting out the power and HDMI/DisplayPort output otherwise. If you don't it's a bit of a nuisance having to go the dock/hub route rather than dedicated power and/or dedicated HDMI/DP but just a minor issue for some users these days.
Bianbu 4.0 pre-loaded on this SpacemiT K3 computer was using a Linux 6.18 derived LTS kernel, an LXQt desktop environment by default, GCC 15.2 compiler, and other modern software packages.
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Page 1 - IntroductionPage 2 - SpacemiT K3 Benchmarking On LinuxPage 3 - SpacemiT K3 Performance BenchmarksPage 4 - SpacemiT K3 Performance Benchmarks
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