Graphics Double Data Rate 6 Synchronous Dynamic Random-Access Memory (GDDR6 SDRAM) is a type of synchronous graphics random-access memory (SGRAM) with a high bandwidth, "double data rate" interface, designed for use in graphics cards, game consoles, and high-performance computing. It is a type of GDDR SDRAM (graphics DDR SDRAM), and is the successor to GDDR5. Just like GDDR5X it uses QDR (quad data rate) in reference to the write command clock (WCK) and ODR (Octal Data Rate) in reference to the command clock (CK). Overview The finalized specification was published by JEDEC in July 2017. GDDR6 offers increased per-pin bandwidth (up to 16 Gbit/s) and lower operating voltages (1.35 V), increasing performance and decreasing power consumption relative to GDDR5X. Commercial implementation At Hot Chips 2016, Samsung announced GDDR6 as the successor of GDDR5X. Samsung later announced that the first products would be 16 Gbit/s, 1.35 V chips. In January 2018, Samsung began mass production of 16Gb (2GB) GDDR6 chips, fabricated on a 10 nm class process and with a data rate of up to 18Gbit/s per pin. In February 2017, Micron Technology announced it would release its own GDDR6 products by early 2018. Micron began mass production of 8Gb chips in June 2018. SK Hynix announced its GDDR6 products would be released in early 2018. SK Hynix announced in April 2017 that its GDDR6 chips would be produced on a 21 nm process and be 10% lower voltage than GDDR5. The SK Hynix chips were expected to have a transfer rate of 1416 Gbit/s. The first graphics cards to use SK Hynix's GDDR6 RAM were expected to use 12 GB of RAM with a 384-bit memory bus, yielding a bandwidth of 768 GB/s. SK Hynix began mass production in February 2018, with 8Gbit chips and a data rate of 14Gbit/s per pin. Nvidia officially announced the first consumer graphics cards using GDDR6, the Turing-based GeForce RTX 2080 Ti, RTX 2080 & RTX 2070 on August 20, 2018, RTX 2060 on January 6, 2019 and GTX 1660 Ti on February 22, 2019. GDDR6 memory from Samsung Electronics is also used for the Turing-based Quadro RTX series. The RTX 20 series initially launched with Micron memory chips, before switching to Samsung chips by November 2018. AMD officially announced the Radeon RX 5700, 5700 XT, and 5700 XT 50th Anniversary Edition on June 10, 2019. These Navi 10 GPUs utilize 8GB of GDDR6