Samsung and SK hynix will detail GDDR7 with transfer rates up to 42.5 GT/s — Samsung 24Gb GDDR7 expected to deliver 170 GB/s of peak bandwidth

SK hynix GDDR7
(Image credit: SK hynix)

The GDDR7 SGRAM specification supports a maximum data transfer rate of 48 GT/s, but the first generation GDDR7 memory devices can operate with up to 32 GT/s data transfer rate. But it looks like GDDR7 will evolve pretty quickly as at the upcoming International Solid-State Circuits Conference (ISSCC), both Samsung and SK hynix plan to discuss their GDDR7 solutions with a 42 GT/s data transfer rate, according to the advanced program of the event.

Samsung plans to describe its 24Gb (3GB) GDDR7 memory device with various enhancements that can support data transfer rates of up to 42.5 GT/s, which means a peak bandwidth of up to 170 GB/s. This device is set to offer tangible improvements in capacity and performance compared to existing GDDR7 products. Currently, the company produces 16Gb (2GB) GDDR7 memory chips that can operate at up to 32 GT/s, thus providing a peak memory bandwidth of 128 GB/s.

This single-ended hybrid DFE is actually a key feature required to reliably achieve high data transfer rates, so let's discuss it in more detail.

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Anton Shilov
Contributing Writer

Anton Shilov is a contributing writer at Tom’s Hardware. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.