GoKawiilSiFive launches BigSky SF-2U870, its first full RISC-V server platform
SiFive unveiled the BigSky SF-2U870, a 2U rack server built around 32 of its P870-D cores running at 2.2GHz, paired with 256GB of DDR5-5600 memory and 64 lanes of PCIe 5.0. The system supports double-wide GPUs up to 450W, includes networking and storage options, and is compliant with the RVA23 profile, enabling it to run Ubuntu 26.04 without modification.
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This marks a step up from SiFive's earlier development boards toward a genuinely usable server-grade RISC-V machine, giving developers a stable, standards-compliant platform to build software on rather than fight with bring-up issues. RVA23 compliance is significant because it signals broader ecosystem readiness, allowing mainstream Linux distributions to run out of the box, which lowers the barrier for real-world RISC-V server adoption.
- BigSky SF-2U870 is SiFive's first full server platform, featuring 32 P870-D cores at 2.2GHz.
- The platform supports RVA23 and RISC-V vector extensions, enabling out-of-box compatibility with Ubuntu 26.04.
- It offers major PCIe and memory bandwidth upgrades over SiFive's prior HiFive Premier P550 board, positioning it for serious server workloads.
StarFive VisionFive 2 RISC-V Single Board Computer — If SiFive's BigSky server has you curious about RISC-V, the VisionFive 2 is an approachable way to actually run the architecture on your desk. It's a full single-board computer that boots Linux, so you can compile, test and poke at the RISC-V ecosystem the article describes without a 2U rack.
See StarFive VisionFive 2 RISC-V Single Board Computer on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: chipsandcheese.com — George Cozma, 2026-08-25
Published there as: “SiFive's First Server Platform”
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