Competition among Samsung, SK Hynix, and Micron is intensifying, with a focus on enhancing processing speed and efficiency in graphics DRAM (GDDR) for AI accelerators and cryptocurrency mining. Compared with High Bandwidth Memory (HBM), the GDDR7 has a faster data processing speed and a relatively low price. Since Nvidia is expected to use next-generation GDDR7 with its GeForce RTX50 Blackwell GPUs, competition will likely be as strong as the demand. We can see that by looking, for example, at the pace of new GDDR7 releases from the past two years.
In July 2022, Samsung Electronics developed the industry’s first 32 Gbps GDDR7 DRAM, capable of processing up to 1.5 TB of data per second, a 1.4 times speed increase and 20% better energy efficiency compared to GDDR6. In February 2023, Samsung demonstrated its first GDDR7 DRAM with a pin rate of 37 Gbps. On June 4, Micron launched its new GDDR7 at Computex 2024, with speeds up to 32 Gbps, a 60% increase in bandwidth, and a 50% improvement in energy efficiency over the previous generation. Shortly after, SK Hynix introduced a 40 Gbps GDDR7, showcased again at Computex 2024, doubling the previous generation’s bandwidth to 128 GB per second and improving energy efficiency by 40%.