Next-generation GDDR7 memory, which will be essential for next-generation gaming GPUs, will be largely supplied by Samsung. The business first announced development in 2023, and they want to discuss even faster variants shortly. However, the 32 Gbps variant that will serve as the foundation for this new standard will not change.
Samsung's first GDDR7 memory modules will have 16 Gb densities and 2 GB of capacity per module.
In its early stages, the speeds can be tuned down to 28 Gbps in order to improve yields and overall performance per cost. The speeds will be set at 32 Gbps (PAM3). Additionally, according to Samsung, GDDR7 memory would operate at a lower voltage of just 1.1V (lower than the 1.2V standard), providing 20% improved power efficiency. Additional advantages included an enhanced circuit design that will minimize thermal resistance by 70% compared to GDDR6 and lower heat production in high-speed operations made possible by newer packaging materials.
- 1.Core independent LFSR (linear-feedback shift register) training patterns with eye masking and error counters to improve training accuracy while reducing training time.
- 2.Doubles the number of independent channels doubles from 2 in GDDR6 to 4 in GDDR7.
- 3.Support for 16 Gbit to 32 Gbit densities including support for 2-Channel mode to double system capacity.
- 4.Address the market need for RAS (Reliability, Availability, Serviceability) by incorporating the latest data integrity features including on-die ECC (ODECC) with real-time reporting, data poison, Error check and Scrub, and command address parity with command blocking (CAPARBLK).