Anandtech has an article on the GDDR6X variant[1] that NVIDIA has in their 3000-cards, where they use a more complex encoding to transmit two bits per clock edg

Anandtech has an article on the GDDR6X variant[1] that NVIDIA has in their 3000-cards, where they use a more complex encoding to transmit two bits per clock edge. I hadn't realized just how insane the bandwidth on the higher-ends cards are, the 3090 being just shy of 1 TB/s, yes, one terrabyte per second... For comparison a couple of DDR5 sticks[2] will just get you north of 70GB/s... [1]: https://www.anandtech.com/show/15978/micron-spills-on-gddr6x-pam4-signaling-for-higher-rates-coming-to-nvidias-rtx-3090 https://www.anandtech.com/show/15978/micron-spills-on-gddr6x... [2]: https://www.anandtech.com/show/17269/ddr5-demystified-feat-samsung-ddr5-4800-ranks-dpcs-do-manufacturers-matter/2 https://www.anandtech.com/show/17269/ddr5-demystified-feat-s...