Jedec has published the JESD239 GDDR7 Sgram standard. This type of memory is targeted at graphics cards and AI accelerators, which are expected in early 2025. GDDR7 should be able to achieve a bandwidth of 192 GB/s per “device,” which is twice the width of GDDR6.

This high speed is made possible through the use of… Pulse amplitude adjustment. The PAM3 interface uses three different levels +1, 0, and -1 to transmit three bits per two cycles, compared to two bits per two cycles for a conventional interface Not going back to zero-user interface.

Standard It also introduces other new features. For example, training accuracy should be increased while training time is reduced. In addition, the number of independent channels has been doubled from two with GDDR6 to four with GDDR7. In terms of capacity, Jedec indicates 16 to 32 Gigabit, as well as support for dual-channel mode for double the capacity. Finally, the organization has also added features like error correction for reliability.

Several major partners, such as AMD and Nvidia, have taken the opportunity to express their enthusiasm for this standard. However, it has not been said when the first products equipped with this technology will be released on the market. According to rumors, Nvidia will pair the GB202 GPU with GDDR7 memory. Tom’s devices are expected These products are due in early 2025.