Physix FrontierLingrui Zhixin Funding Round: I Back the RISC-V Route [Opinion]
Spent the weekend reading closely about Lingrui Zhixin completing a funding round worth hundreds of millions of yuan. More than the amount itself, I'm focused on how agent scenarios are redefining CPU architecture. This time, I'm backing the RISC-V route, for the following reasons.
1. Control-intensive architectures are regaining influence
Looking at industry trends, the evolution from "conversational AI" to "executive AI" means a large number of tasks require CPUs to handle complex control flows, interrupts, and context switching. GPUs handle parallel computing, but workloads like scheduling, multimodal interaction, and security isolation ultimately rely on CPUs. Lingrui Zhixin's main pitch—an "agent-native" CPU core—hits exactly this pain point. Nvidia uses over 1 billion RISC-V cores annually in its AI chips; this number alone demonstrates big players' recognition of RISC-V as a control core.
2. SMT4 technology is key to differentiation
The article mentions that P100 v1 is the only RISC-V CPU core in China supporting dynamic simultaneous multithreading (SMT4). In server-grade CPUs, SMT is a mature method for improving concurrent throughput, but the RISC-V ecosystem has lacked such a mature implementation. The fact that Lingrui Zhixin can achieve SMT4 indicates their microarchitecture design capabilities have moved beyond theoretical verification into engineering implementation. This holds more commercial value than simply stacking core counts.
3. Investor portfolio sends signals
Zhangjiang Hi-Tech, CAS Star, Biren Technology—a mix of state-backed capital and upstream/downstream industry participants. Such combinations usually mean the technical route has received supply-chain-level endorsement. Compared to pure financial investment, industrial capital values long-term synergy more. Lingrui Zhixin completed multiple funding rounds within just over a year of founding; the tight financing pace shows the market's hunger for high-performance RISC-V CPUs is indeed high.
One thing I'm particularly watching: Lingrui Zhixin has currently raised hundreds of millions, but R&D and tape-out costs for high-performance RISC-V CPUs are extremely high. Nvidia, SiFive, and Alibaba's T-Head are all investing heavily in this direction. The question Lingrui Zhixin needs to answer is—in the winner-takes-all market of server-grade CPUs, can its differentiated advantages support an independent third-party ecosystem position?
Feel free to share your views.
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