What is GDDR7 memory? It's the next generation of graphics memory for GPUs like the upcoming Nvidia Blackwell RTX 50-series. It will be used in a variety of products over the coming years, providing a generational upgrade over the existing GDDR6 and GDDR6X solutions, which then boosts performance in gaming and other types of workloads. But there's a lot more going on beneath the name.
Ever since the second generation of GDDR memory—for "Graphics Double Data Rate," if you're wondering—rolled out, the pattern has been pretty clear. GDDR (formerly DDR SGRAM) arrived way back in 1998, and every few years, a new iteration has arrived, boasting higher speeds and bandwidth.
The current generation GDDR6 arrived in 2018 and was first used in the Nvidia RTX 20-series and AMD RX 5000-series GPUs, starting with speeds of 14 GT/s (giga-transfers per second — or alternatively Gbps for gigabits per second) and eventually topping out at 20 GT/S. There was also GDDR6X memory, used solely by Nvidia on higher tier RTX 30- and 40-series GPUs, with initial speeds of 19 GT/s that eventually reached up to 23 GT/s — at least in shipping products.
GDDDR7 has been on the horizon for several years now since Samsung first discussed the tech back in 2022, with the final JEDEC specifications released on March 5, 2024. All the major memory manufacturers — Micron, Samsung, and SK hynix — have already committed to supporting the standard, and chips should be in mass production now. We anticipate seeing the first retail products using GDDR7 this fall.
