Shares of Advanced Micro Devices (AMD) rose nearly 7% on Thursday to close at $275.91, setting a new record high. Analysts suggest that AMD is positioned to be the primary beneficiary of surging CPU demand, with its EPYC "Turin" processors utilizing a chiplet architecture experiencing significant supply constraints. "The increase in demand over the past six to nine months has been unprecedented," stated Forrest Norrod, head of AMD's Data Center Business, adding that there are currently no signs of demand slowing or stopping in the near term. Analysts from investment bank KeyBanc noted that AMD's EPYC server CPU supply for the full year is almost entirely sold out, with lead times for high-end EPYC processors extending to 8-10 weeks. In a detailed interview on April 8, Dylan Patel, Chief Analyst at renowned semiconductor analysis firm SemiAnalysis, remarked that the paradigm for AI workloads is shifting from simple text generation to complex agents and reinforcement learning, leading to "extremely severe capacity shortages" for CPUs. A recent report from market research firm TrendForce indicated that the current CPU-to-GPU ratio in AI data centers is approximately 1:4 to 1:8, but this ratio is expected to narrow significantly to between 1:1 and 1:2 in the era of agent AI.