TPU挑战GPU，但美银建议：英伟达、博通、AMD都买

Core Viewpoint - Bank of America predicts that the AI data center market will grow fivefold to over $1.2 trillion by 2030, maintaining a buy rating on Nvidia, Broadcom, and AMD despite potential market share declines for Nvidia [2][4][11]. Market Growth and Dynamics - The total addressable market (TAM) for AI data centers is expected to increase from $242 billion in 2025 to over $1.2 trillion by 2030, indicating a significant market expansion [11]. - Even if Nvidia's market share normalizes from 85% to 75%, its absolute revenue is projected to experience explosive growth [4][11][12]. Competitive Landscape - Custom chips, such as Google's TPU, are seen as a challenge to GPUs, particularly for companies with large internal workloads like Google and Meta [3][4]. - However, GPUs remain irreplaceable in public cloud and enterprise markets due to their flexibility and broader ecosystem [13]. Investment Recommendations - Bank of America maintains a buy rating for Nvidia, Broadcom, and AMD, suggesting that current valuations do not fully reflect their long-term profitability [5][15]. - Nvidia is expected to achieve over 40% sales and earnings growth, with a target price of $275, while its earnings per share could exceed $10 by 2027 and $20 by 2030 [16][17]. - Broadcom is viewed as a major beneficiary of the custom chip trend, with a target price of $400, anticipating over 100% year-over-year growth in AI business revenue by 2026 [18][19]. - AMD is also recommended for holding, with a target price of $300, reflecting its growth potential across various sectors despite facing cyclical slowdowns in embedded markets [21][23].