ARM · Tom's Hardware
As Craig Punty puts it, Rhea1 could open rather unexpected doors for SiPearl
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As it turns out, geopolitical tensions and export controls force big players to look for alternatives to American hardware, which is where SiPearl's processors could fit rather well.
Key facts
- The Rhea CPU is intended to reach markets by late 2026 or early 2027, and won't be the most performant HPC CPU on the market
- The Rhea1 CPU is in its 12-week bring-up process since May 13, and it works exactly as it was designed to do," said Craig Prunty, vice president of marketing and business development of SiPearl, 's
- SiPearl hopes to tape out its 2 nd Generation Rhea (Rhea2) processor in 2027
- Since these teams have never worked together before, the processor was delayed several times from 2023 to 2026
Summary
Sipearl has been developing a custom CPU, especially designed for high-performance workloads, named 'Rhea', for over five years. The Rhea CPU is intended to reach markets by late 2026 or early 2027, and won't be the most performant HPC CPU on the market. SiPearl's Rhea (or Rhea1, how the company prefers to call the unit these days) sports 80 Arm Neoverse V1 cores with two 256-bit Scalable Vector Extension (SVE) engines for fast vector computations in FP64, FP32, BF16, and INT8 formats; 1 MB of L2 per core; 80 MB system-level cache (SLC), and 104 PCIe 5.0 lanes. SiPearl received the first samples of its Rhea processor in mid-May, and the CPU is currently in bring-up mode. "The Rhea1 CPU is in its 12-week bring-up process since May 13, and it works exactly as it was designed to do," said Craig Prunty, vice president of marketing and business development of SiPearl, 's Hardware Premium.