Now that JEDEC has published GDDR7 memory specifications, memory manufacturers are starting to announce their initial products. The first gatekeeper to this generation is Samsung, which has quietly added its GDDR7 products to its official product catalog.

For now, Samsung lists two GDDR7 devices on its website: 16 Gbit chips; Up to 28 GT/s data transfer rate And a faster version is running. Up to 32 GT/s data transfer rate (That's according to Samsung's early parts. Announced in mid-2023.). The chips have 512M x32 organization and come in 266-pin FBGA packaging. The chips are already sampling, so Samsung's customers — GPU vendors, AI inference vendors, network product vendors, and the like — should already have GDDR7 chips in their labs.

The GDDR7 specification promises a maximum per-chip capacity of 64 Gbit (8 GB) and a data transfer rate of 48 GT/s. Meanwhile, the first-generation GDDR7 chips (as announced so far) will have a rather modest capacity of 16 Gbit (2 GB) and a data transfer rate of up to 32 GT/s.

In terms of performance, the first generation of GDDR7 should provide significant improvements in memory bandwidth over GDDR6 and GDDR6X. However, capacity/density improvements will not occur until memory manufacturers transition to their next generation EUV-based process nodes. As a result, earlier GDDR7-based graphics cards are unlikely to improve memory capacity. Although looking a bit further down the road, Samsung and SK Hanks have previously stated. Tom's Hardware That they plan to reach mass production of 24 Gbit GDDR7 chips in 2025.

Otherwise, it's worth noting that SK Hynix also demonstrated its GDDR7 chips at NVIDIA's GTC last week. So Samsung's competition should be behind in sample supply and eventually in mass production memory.

Source: Samsung (through @harukaze5719)