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美光加入GDDR 7混战
半导体行业观察· 2026-02-26 01:30
Core Viewpoint - Micron has officially launched its 3GB GDDR7 memory module, entering the competition with Samsung and SK Hynix, with a maximum speed of 36Gbps, which is a 12.5% increase over the initial GDDR7 modules that had a bandwidth of 32Gbps [2] Group 1: Micron's GDDR7 Memory - Micron's new 3GB GDDR7 memory module is slower than Samsung's offering, which has a maximum bandwidth of 42.5Gbps, and SK Hynix's upcoming module, which can reach 40Gbps [2] - Currently, no NVIDIA graphics card can fully utilize the GDDR7 memory's transmission speeds of 40Gbps or higher, with the highest speed being 30Gbps on the RTX 5080 [2][3] - Micron's entry as a third supplier of 3GB GDDR7 memory is beneficial for NVIDIA and other GPU manufacturers, as it may help alleviate the upcoming NAND flash/memory shortage [3] Group 2: Competitors' Developments - Samsung has already showcased 36Gbps and 32Gbps versions of its 3GB GDDR7 memory, which was sampled as early as November last year [5] - SK Hynix plans to present a 48Gbps version of its 3GB GDDR7 memory at the ISSCC 2026, which is aimed at mid-range AI inference workloads [7] - The 48Gbps memory from SK Hynix represents a significant performance increase, with over 70% improvement compared to NVIDIA's current 28Gbps GDDR7 memory [7][8] Group 3: Market Implications - The introduction of a third supplier for 3GB GDDR7 memory could lead to more competitive pricing and availability for GPU manufacturers [3] - NVIDIA's current GPUs using 3GB GDDR7 memory include the RTX 5090 and RTX Pro 6000, with potential future models like the RTX 50 Super series expected to utilize Micron's memory [3] - The industry is witnessing a trend where manufacturers prefer stable, mature solutions over unproven samples, which may affect the adoption of the highest-speed memory options [6]