Samsung develops 24Gb GDDR7 DRAM for next-generation AI computing

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Samsung Electronics, a leading developer of advanced memory technology, has developed the industry’s first 24-gigabit (Gb) GDDR7 DRAM.

Credit: Samsung Electronics

In addition to the industry’s highest capacity, the GDDR7 also features the fastest speed, positioning itself for next-generation applications.

Providing high capacity and improved levels of performance, the 24Gb GDDR7 is expected to be widely used in various fields that require high-performance memory solutions, such as data centres and AI workstations, extending beyond the traditional applications of graphics DRAM in graphics cards, gaming consoles and autonomous driving.

"After developing the industry's first 16Gb GDDR7 last year, Samsung has reinforced its technological leadership in the graphics DRAM market with this latest achievement," said YongCheol Bae, Executive Vice President of Memory Product Planning at Samsung Electronics. "We will continue to lead the graphics DRAM market by bringing next-generation products that align with the growing needs of the AI market."

The 24Gb GDDR7 utilise 5th-generation 10-nanometer (nm)-class DRAM, which enables cell density to increase by 50% while maintaining the same package size as the predecessor.

In addition to the advanced process node, three-level Pulse-Amplitude Modulation (PAM3) signalling is used to help achieve the speed for graphics DRAM of 40 gigabits-per-second (Gbps), which is a 25% improvement over the previous version. The GDDR7’s performance can be further enhanced to up to 42.5Gbps, according to Samsung, depending on the usage environment.

Power efficiency has also been enhanced by applying technologies that were previously used in mobile products to graphics DRAM for the first time. By implementing methods like clock control management and dual VDD design, unnecessary power consumption can be significantly reduced, leading to an improvement of over 30% in power efficiency.

To boost operational stability during high-speed operations, the 24Gb GDDR7 minimises current leakage by using power gating design techniques.

Validation for the 24Gb GDDR7 in next-generation AI computing systems from major GPU customers will begin this year, with plans for commercialization early next year.