CPU Architecture on AI Brief | AI-101.techhttps://AI-101.tech/tags/cpu-architecture/Recent content in CPU Architecture on AI Brief | AI-101.techHugoenMon, 13 Apr 2026 21:00:00 +0800Nvidia Leads SiFive's $400M Round, Betting on Open-Source RISC-V AI Chipshttps://AI-101.tech/posts/2026-04-12-nvidia-sifive-riscv-ai-chips/Mon, 13 Apr 2026 21:00:00 +0800https://AI-101.tech/posts/2026-04-12-nvidia-sifive-riscv-ai-chips/<h2 id="breaking-the-x86-and-arm-duopoly">Breaking the x86 and ARM Duopoly</h2> <p>SiFive&rsquo;s products are based on RISC-V processor architecture — neither Intel&rsquo;s x86 nor ARM. These two architectures currently almost completely monopolize the CPU supply feeding Nvidia GPU compute systems.</p> <p>RISC-V is an open-source design that anyone can inspect, modify, and use. This contrasts sharply with x86&rsquo;s closed proprietary model and ARM&rsquo;s licensing approach. Previously RISC-V was mainly used in IoT devices and microcontrollers, but with this funding round, SiFive is targeting AI data center CPUs.</p>