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SpacemiT K3 Pico-ITX Review: 60-TOPS RISC-V Powerhouse for LLMs?

By androidpimpJune 2, 2026Updated:June 5, 2026No Comments47 Mins Read
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SpacemiT K3 Pico ITX
SpacemiT K3 Pico ITX
Table of contents
  1. Part I: An Introduction to the SpacemiT K3 RISC-V Series Boards
  2. Why “capable of running 30B parameter LLMs” is a big deal?
  3. 1️⃣SpacemiT K3 high-performance RISC-V processor 
    1. The K3 is a cutting-edge, high-performance RISC-V CPU built for advanced AI applications.
    2. Target market
    3. Main Highlights
  4. Completely compliant with the RVA23 profile.
    1. What is RVA23 and why is it important?
    2. What’s inside RVA23?
  5. Why developers care?
    1. In one sentence
  6. Here’s a closer look at the full range of capabilities offered by the SpacemiT K3:
  7. 2️⃣K3 Pico-ITX single board computer (Also known as Milk-V Jupiter 2)
  8. Specifications
  9. 3️⃣SpacemiT K3-CoM260 Developer Kit
    1. A Full-Stack RISC-V Robotics Development Kit
  10. Key Features
  11. Extensive software compatibility
    1. OS compatibility now includes Ubuntu 26.04 with support for RISC-V architecture.
    2. Official mainline Ubuntu support.
  12. Extra support through official partner channels
    1. What about official OpenWrt mainline support?
  13. Supporting the Spine Triton kernel development system
    1. Why does SpacemiT care about Triton?
  14. Hardware designed to work with AI agents
  15. Platforms that are already compatible with the K3 architecture.
  16. RISC V AI Acceleration in 2026: How SpacemiT K3 Challenges Jetson at the Edge
    1. SpacemiT K3 vs NVIDIA Jetson Series – Performance Comparison
  17. Part II: SpacemiT K3 Pico-ITX Review
    1. The Package
  18. Package Contents (Unboxing)
  19. Design-wise
  20. Storage Space – What You Need to Know!
  21. How much internal storage comes with the 16GB RAM model?
    1. ⭐ 128 GB total capacity!
    2. How much space do we have available, and how much is left to use?
  22. How to install an NVMe SSD
    1. Checking for drives and partitions
    2. Performance benchmarks
    3. What do p80, p90, p95, and p99 latency mean?
    4. Test Results In plain language:
  23. Checking temperatures
  24. Software Support
    1. How do I flash the firmware to set up a new operating system?
    2. Pre-installed software
  25. Available usable RAM
    1. Compatibility with Tailscale
      1. Step 1: Installing Tailscale for a riscv64 architecture environment
      2. Step 2: Enabling and starting the Tailscale service
      3. Step 3: Checking that it’s running
      4. Step 4: Authenticating our device
  26. Better and more cost-effective?
    1. Chinese companies are great at keeping costs low, but is their hardware actually better than Nvidia’s?
  27. Architecture: Heterogeneous vs. Homogeneous Fusion
    1. Nvidia design philosophy
    2. SpacemiT K3 design philosophy
    3. Conclusion: Better is Relative
      1. Is the hardware actually better?
  28. System performance benchmarks
    1. Key takeaways
    2. Key Takeaways
  29. Running the official llama.cpp benchmark tool (llama-bench)
    1. Running our test
    2. Our test script
    3. Why did we pick this model?
    4. LLaMA-3 8B Q4_K_M — Spacemit K3 vs Mac mini (16 GB RAM) + Estimated Prices (USD)
    5. Final Conclusions:
      1. What do the results mean?
    6. What kinds of AI language models can operate on this device?
      1. What does this mean from a user’s standpoint?
    7. Unified LLM Compatibility Table (16GB RAM Pico ITX)
  30. Connectivity
    1. Wireless connectivity
    2. How is the performance?
    3. What about support for cellular modems?
  31. Setting up our 10Gb RJ45 SFP+ module
    1. iPerf3 network throughput Speed Test
    2. ⭐Quick Takeaways from our test results
      1. The bottom line
    3. We also took a look at the CPU usage of the K3 Pico-ITX.
      1. Key Observations from the Metrics:
    4. Improving performance by optimizing operating system governors
  32. Power requirements
  33. Usable Interfaces
  34. Final verdict
    1. Price wise
    2. Places to buy
    3. SPACEMIT K3 Pico-ITX RISC-V Development Board

Final verdict

Our takeaway from using this board is that it’s not yet an NVIDIA “killer” in terms of specs and GPU power. On the positive side, SpacemiT did a great job designing cost-effective hardware that’s likely to have both community and software support, or at least that’s the direction they’re heading. If you’re wondering whether the price is too high, the answer is no given the rising RAM chip prices, it’s reasonable.

Price wise

When looking at value for money, the Pico-ITX mini-PC starts at about $250-300 for the bare board, making it much cheaper than the Mac Mini series, where the base M4 model begins at around $599 and climbs higher for the Pro version. A big perk of the Pico-ITX is its official Ubuntu mainline support, with OpenWrt in the works, ensuring several years of solid software updates for the hardware.

Places to buy

We suggest buying from our partner, Banana Pi, who also offer a great support forum where you can ask questions and share any issues. If you’re considering other distributors, you can check out the full list provided below.

BPI K3 Pico ITX

SPACEMIT K3 Pico-ITX RISC-V Development Board

$323.34
This site contains affiliate links to products. We may receive a commission for purchases made through these links.
Buy this item
AliExpress store: Chip Board Flagship Store

SpacemiT Community, support, and social media channels:

  • SpacemiT Community: https://www.spacemit.com/community 
  • SpacemiT Forum: https://forum.spacemit.com/ 
  • SpacemiT Reddit: https://www.reddit.com/r/spacemit_riscv/ 
  • SpacemiT X: https://x.com/spacemit_riscv 
  • SpacemiT Discord: https://discord.com/invite/hCPARBCt7k 
  • SpacemiT YouTube: https://www.youtube.com/@SpacemiT_CN

Hardware and Distribution Partners list (Updated 19 May 2026)

Partner NameProducts based on the K3Source
Firefly✅ AIBOX-K3
✅ Firefly K3 SoM Series
✅ K3 Server Series
Firefly
Banana Pi✅ K3 Pico-ITX
✅ BPI-SM10 (K3-CoM260) SoM
Banana Pi
Sipeed✅ CoM260 ModuleSipeed
MilkV✅ Milk-V Jupiter 2 NX SoM
✅ Milk-V Jupiter 2 SBC
Milk-V
 Arace Tech.✅ Milk-V Jupiter 2Arace Tech

Business cooperation and purchase inquiries

  • WeChat (Business): SpacemiT1102
  • Phone: +86 189 6649 8607
  • Email: business@spacemit.com
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