Observed Signal · Jun 4, 2026 · Product Launch · Source: t3n · Impact: 3/5 · Sentiment: Positive
Rhea1: Europe's Alternative to AMD, Intel, Nvidia
French firm SiPearl unveiled its Rhea1 ARM-based server processor at Computex in Taipei. Rhea1 uses a single compute die with 80 ARM Neoverse V1 cores, four HBM2e stacks providing a total of 64 GB high-bandwidth memory, additional DDR5 channels, and two dummy dies for structural stability. Because advanced fabs are unavailable in Europe, SiPearl contracted TSMC to manufacture the chip in a 6 nm N6P process and recently received first functional samples. The project faced multi-year delays largely due to late Series A financing, leaving Rhea1 technically behind the latest node. SiPearl is designing a successor, Rhea2, targeting TSMC 3 nm production and a chiplet architecture; the company aims to raise about €270 million in Series B funding. The effort is part of the European Processor Initiative to reduce dependence on non‑European suppliers.
A new European server‑class ARM processor could diversify AI/data‑center compute supply and reduce dependence on established vendors; manufacturing at TSMC and planned 3 nm chiplet successor affect infrastructure and procurement planning.
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Key Takeaways & Evidence Grounding
- SiPearl unveiled the Rhea1 processor at Computex in Taipei.
- Rhea1 has a compute die with 80 ARM Neoverse V1 cores.
- Rhea1 integrates four HBM2e stacks totaling 64 GB plus DDR5 memory channels.
- Rhea1 is manufactured by TSMC on a 6 nm N6P process; SiPearl received first functional samples.
- SiPearl plans Rhea2 with a chiplet design targeting TSMC 3 nm and expects a €270 million Series B round.
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