一文拆解英伟达Rubin CPX：首颗专用AI推理芯片到底强在哪？

Core Viewpoint - Nvidia has launched the Rubin CPX, a CUDA GPU designed for processing large-scale context AI, capable of handling millions of tokens efficiently and quickly [5][4]. Group 1: Product Overview - Rubin CPX is the first CUDA GPU specifically built for processing millions of tokens, featuring 30 petaflops (NVFP4) computing power and 128 GB GDDR7 memory [5][6]. - The GPU can complete million-token level inference in just 1 second, significantly enhancing performance for AI applications [5][4]. - The architecture allows for a division of labor between GPUs, optimizing cost and performance by using GDDR7 instead of HBM [9][12]. Group 2: Performance and Cost Efficiency - The Rubin CPX offers a cost-effective solution, with a single chip costing only 1/4 of the R200 while delivering 80% of its computing power [12][13]. - The total cost of ownership (TCO) in scenarios with long prompts and large batches can drop from $0.6 to $0.06 per hour, representing a tenfold reduction [13]. - Companies investing in Rubin CPX can expect a 50x return on investment, significantly higher than the 10x return from previous models [14]. Group 3: Competitive Landscape - Nvidia's strategy of splitting a general-purpose chip into specialized chips positions it favorably against competitors like AMD, Google, and AWS [15][20]. - The architecture of the Rubin CPX allows for a significant increase in performance, with the potential to outperform existing flagship systems by up to 6.5 times [14][20]. Group 4: Industry Implications - The introduction of Rubin CPX is expected to benefit the PCB industry, as new designs and materials will be required to support the GPU's architecture [24][29]. - The demand for optical modules is anticipated to rise significantly due to the increased bandwidth requirements of the new architecture [30][38]. - The overall power consumption of systems using Rubin CPX is projected to increase, leading to advancements in power supply and cooling solutions [39][40].