1. AMD shares have fallen 23.37% since October due to concerns about competition with Nvidia's Blackwell chips; 2. Breakthroughs from DeepSeek V3 model significantly reduce AI training costs, positioning AMD GPUs as a more cost-effective alternative to Nvidia's; 3. AMD's forward P/E ratio is undervalued, and aligning its PEG ratio with the sector median could lift its valuation by approximately 130.49%; 4. Despite risks, AMD's competitive total cost of ownership and DeepSeek's advancements make AMD shares a strong buy for future growth in the AI GPU market.