SiFive secures $400 million to accelerate RISC-V chip development

SiFive, a semiconductor company developing processors based on the open-source RISC-V instruction set architecture, has raised $400 million in new funding. Nvidia participated in the investment round, continuing its support for alternative chip architectures. The funding will support SiFive's expansion into data center, automotive, and consumer electronics markets. RISC-V has gained traction as a royalty-free alternative to the dominant Arm and x86 architectures, particularly among companies seeking to reduce licensing costs and maintain greater design flexibility. SiFive has positioned itself as the leading commercial vendor of RISC-V processors, offering both core designs and complete system-on-chip solutions. The company has secured design wins across multiple sectors including aerospace, networking, and machine learning accelerators. Nvidia's continued investment in SiFive reflects growing industry interest in diversifying beyond established computing architectures. The company has previously collaborated with SiFive on chip designs and has shown interest in RISC-V for certain internal projects. The $400 million round represents one of the largest funding events for a RISC-V focused company and signals sustained venture capital interest in semiconductor startups despite broader market headwinds.