Europe has long watched from the sidelines as the US and China dominated supercomputing, primarily due to their domestic chip giants. The continent’s dependence on foreign semiconductor suppliers has created vulnerabilities in critical areas, including AI, climate science, and national security. Enter SiPearl — a French startup determined to change this landscape by developing energy-efficient, high-performance processors specifically tailored for European supercomputers.
SiPearl’s flagship Rhea1 processor represents a technological breakthrough with its 80 Arm Neoverse V1 cores and over 61 billion transistors, designed for exascale computing. Its recent €130 million Series A funding round — including a €32 million investment led by Cathay Venture, the European Innovation Council Fund, and France 2030 — underscores the urgency and ambition of this endeavour. With this support, SiPearl is moving rapidly to launch Rhea1 and help Europe reclaim digital sovereignty.
Philippe Notton, SiPearl’s founder and CEO, brings extensive semiconductor industry experience from previous roles at Atos, MStar Semiconductor, and STMicroelectronics. Notton was instrumental in establishing the European Processor Initiative (EPI), which aligns perfectly with SiPearl’s core mission. His vision is to empower Europe with processors that combine high-performance computing, energy efficiency, and robust security — all developed and manufactured within the European Union.
SiPearl vs. Nvidia and the global giants
Nvidia stands as the dominant force in high-performance chips, powering AI data centres and supercomputers worldwide. AMD, IBM, and Ampere also play significant roles, each emphasising speed, scalability, and energy efficiency. So what sets SiPearl apart — and can it compete?
Unlike Nvidia and other global chip manufacturers, SiPearl focuses exclusively on Europe’s supercomputing needs. While Nvidia’s GPUs dominate data centres and AI labs globally, SiPearl’s Rhea1 processor is specifically designed for the EuroHPC Joint Undertaking and Europe’s key research, security, and industry requirements. This regional focus enables SiPearl to integrate seamlessly with European infrastructure and meet strict data sovereignty regulations that global companies often struggle with.
Energy efficiency represents another key differentiator for SiPearl. Nvidia’s chips, though incredibly powerful, are known for high energy consumption. In contrast, SiPearl’s architecture aims to deliver excellent performance while reducing power consumption, which is essential for European supercomputing centres that prioritise sustainability and cost efficiency.
Security and sovereignty form the core of SiPearl’s value proposition. Its processors are intentionally “backdoor-free,” directly addressing concerns about hardware vulnerabilities associated with chips designed outside the EU. This level of security assurance presents a challenge for Nvidia, AMD, and other global competitors whose supply chains span multiple countries.
Strategic collaborations further strengthen SiPearl’s position. As the only European licensee of the Arm Neoverse V1 platform, it ensures compatibility with a broad software ecosystem. Partnerships with industry leaders such as Eviden, HPE, Siemens, and Synopsys provide additional expertise and credibility, helping accelerate development and deployment.
However, SiPearl faces formidable competition. Nvidia’s vast resources, mature ecosystem, and rapid innovation set a high bar. Reliance on TSMC for manufacturing provides access to advanced semiconductor processes but introduces supply chain vulnerabilities shared with larger rivals. SiPearl’s success hinges on its ability to move quickly, scale production, and deliver on its promise of a secure, energy-efficient, European-made supercomputing processor.
What’s next for SiPearl? Scaling up for a supercomputing future
With its new funding, SiPearl is accelerating the industrialisation of its Rhea1 chip, targeting commercial launch in 2024. The company plans to expand its team to over 1,000 staff by late 2025, with operations across France, Germany, Spain, and Italy. Its primary goal is to support the next generation of European exascale supercomputers and strengthen Europe’s leadership in HPC and AI innovation.
SiPearl’s progress serves as a benchmark for Europe’s broader ambitions in the semiconductor industry. If successful, it could catalyse renewed domestic innovation and help bridge the gap with Silicon Valley’s technology leaders.
