Samsung to demonstrate world-leading GDDR7 memory at 37 Gb/s at 2024 IEEE ISSCC

According to the latest news, the 2024 IEEE International Solid-State Circuits Conference (ISSCC) will be held in San Francisco from February 18th to 22nd. ISSCC is the highest-level conference in the field of integrated circuit design recognized by the global academic and corporate circles. At that time, Samsung will showcase its latest GDDR7 technology with the theme of "16Gb 37Gb/s GDDR7 DRAM with PAM3 optimized TRX equalization and ZQ calibration". This technology will further advance the development of high-performance memory, providing faster data transfer speeds and higher capacities. Samsung’s display will attract the attention of professionals and industry leaders from around the world and is an important opportunity for them to showcase innovative technologies.

GDDR7 uses PAM3 encoding and is located between PAM4 and NRZ. Compared with NRZ, it achieves a higher periodic data transmission rate, while Reduced need for higher memory bus frequencies, resulting in higher performance than GDDR6 and lower power consumption and cost than GDDR6X.

In addition, GDDR7 will also improve performance by optimizing memory efficiency and power consumption. It uses four different clock reading modes, allowing it to run only when needed, thus saving energy. In addition, GDDR7's memory subsystem also supports issuing two independent commands in parallel to further reduce power consumption.

In fact, Samsung has released GDDR7 technology at the 2022 Technology Day. The first products of this technology have rated transmission speeds of up to 32 Gbps, a 33% improvement over GDDR6. This enables GDDR7 to achieve a bandwidth of 1.5 TB/s on a 384bit bus interface.

Samsung issued a press release last October detailing their improvements to GDDR7 dynamic power consumption over the past year. Through additional clock control, they successfully reduced standby power consumption by 50%, making it more energy efficient than GDDR6.

Samsung officials said that compared with the current fastest 24 Gbps GDDR6 DRAM, GDDR7 will provide about 40% performance improvement and about 20% Improved energy efficiency. In addition, according to Samsung, they also tested early samples of 36 Gbps, but the specific details have not been released.

Samsung GDDR7 DRAM will feature technology specifically optimized for high-speed workloads, while also offering low-power options for products such as laptops that focus on battery life.

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