SiFive has just launched the SiFive Performance P570 Gen 3 out-of-order RISC-V processor core, compliant with the RVA23 ISA profile, and designed for edge AI, high-end consumer, and commercial IoT applications running Android or enterprise-grade OS.
Besides the CPU core, SiFive also provides system IP, such as the RISC-V standard-compliant advanced interrupt architecture (AIA), WorldGuard security, and a second-generation RISC-V standard-compliant IOMMU to build a complete SoC with up to 16x P570 Gen 3 cores.
Performance P570 Gen3 specifications:
- Support for all mandatory RVA23 profile extensions for compatibility with modern operating systems such as Ubuntu 26.04 LTS and Red Hat
Enterprise - Adds extensions for enhanced security and performance, including Smepmp, Zvkng, Zvksg, Zicfilp, Zicfiss, Zfbfmin, Zvfbfmin, Zvfbfwma, and Zvdot4a8i
- Third-generation out-of-order core building on earlier P550 Gen1 and P470 Gen2 cores
- 3-wide, 13-stage fully out–of order execution superscalar pipeline
- Single 128-bit vector pipeline with dot product extensions
- Supports multicore coherence with up to 16 cores in a core complex (4x 4-core clusters)
The P570 delivers twice the performance per GHz as the P550 in the Geekbench 6 benchmark, and this increases to 21x higher performance for AI workloads such as object detection, thanks to the 128-bit VLEN vector pipeline. Compared to the P470 Gen2, the numbers for the P570 are 30% and 4.5x higher. Photo filters like background blur also benefit greatly.
In traditional CPU workloads, as measured by SpecInt 2006/2017, the P570 gains 7- 13% in performance compared to P550, and retains the same performance as the P470.
The Performance P570 Gen 3 also offers efficiency improvements with 13% and 5% dynamic power improvements (mW/GHz) compared to P550 and P470, and a 51% and 5% in terms of power leakage (in mW).
On the software, besides support for modern OS like Google Android, Canonical Ubuntu, and Red Hat, we’re also told RISCstar has been working on upstreaming a full-featured implementation of OP-TEE in collaboration with SiFive and the RISC-V Software Ecosystem (RISE). Imagination Technology is also quoted in the press release, so that probably means P570 SoCs with graphics, like similar RISC-V SoCs, will likely feature the company’s GPU.
More details about the new Performance P570 Gen3 RISC-V core can be found on the SiFive website, and in the video below by Krste Asanovic, SiFive co-Founder and Chief Architect.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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