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SiFive BigSky SF-2U870 brings RVA23 support to RISC-V server development
SiFive announced the BigSky SF-2U870, a 2U RISC-V server platform with 32 P870-D cores at 2.2 GHz that supports the RVA23 standard, enabling out-of-the-box Ubuntu 26.04 execution.
The lack of RVA23-compliant silicon has been one of the largest weaknesses in the RISC-V ecosystem, forcing developers to chase firmware instead of writing code. BigSky fills that gap with a platform designed to run CI and development workflows without fuss.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
The BigSky SF-2U870 packs 32 P870-D cores at 2.2 GHz, 256 GB DDR5-5600, and 64 lanes of PCIe 5.0 plus 4 lanes of PCIe 3.0 in a standard 2U server.
RVA23 support is the critical differentiator, enabling RVV and allowing Ubuntu 26.04 to run out of the box on RISC-V hardware.
SiFive positions BigSky as a development system, not an x86 or Arm competitor, prioritizing a platform that works over raw performance.
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