Samsung has arrived at NVIDIA GTC, and one product that the company is showing off at the event is GDDR7 memory, according to new photos taken from the show floor today that tease some of the hardware that will be going into the next generation of gaming GPUs, including what is rumored to be NVIDIA’s GeForce RTX 50 Series of “Blackwell” graphics cards. GDDR7 memory from Samsung will initially run at 28 Gbps rather than 32 Gbps for efficiency reasons, it’s been reported, while SK hynix, which is also present alongside Samsung and Micron at GTC, announced today that it has begun mass producing what it says is the industry’s first HBM3E for delivery this month to an unnamed customer.
GDDR7 memory highlights, per JEDEC:
- Core independent LFSR (linear-feedback shift register) training patterns with eye masking and error counters to improve training accuracy while reducing training time.
- Doubles the number of independent channels doubles from 2 in GDDR6 to 4 in GDDR7.
- Support for 16 Gbit to 32 Gbit densities including support for 2-Channel mode to double system capacity.
- 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).
A look at Samsung’s GDDR7 and its initial performance for upcoming GPUs:
Samsung is showing #GDDR7 at #GTC24 which is supposed to start at 32 Gbps / 1,1 V with the option to run more efficient with 28 Gbps. So next GeForce and Radeon cards will come with at least 28 Gbps fast memory.https://t.co/htznpEW3iI pic.twitter.com/9acBRfPa8y
— Andreas Schilling 🇺🇦 🇮🇱 (@aschilling) March 19, 2024
Configurations:
- 512-bit / 28 Gbps / 32 GB (Max Memory) / 1792 GB/s (Max Bandwidth)
- 384-bit / 28 Gbps / 24 GB (Max Memory) / 1344 GB/s (Max Bandwidth)
- 256-bit / 28 Gbps / 16 GB (Max Memory) / 896.0 GB/s (Max Bandwidth)
- 192-bit / 28 Gbps / 12 GB (Max Memory) / 672.0 GB/s (Max Bandwidth)
- 128-bit / 28 Gbps / 8 GB (Max Memory) / 448.0 GB/s (Max Bandwidth)
SK hynix on its HBM3E:
The latest product is the industry’s best in all the aspects required for an AI memory including speed and heat control. It processes up to 1.18TB of data per second, equivalent to processing more than 230 full-HD movies (5GB each), in a second.
As AI memory operates at an extremely high speed, controlling heat is another key qualification required for AI memories. SK hynix’s HBM3E also comes with a 10% improvement in heat-dissipation performance, compared with the previous generation, following application of the advanced MR-MUF2 process.