https://wccftech.com/xbox-series-x-every-news-rumor-leak-on-microsofts-next-gen-console/

The Xbox Series X, previously known with its official codename of Project Scarlett, was first briefly teased at E3 2019 by Microsoft. At that time, the company promised the next-generation Xbox would be roughly four times as powerful as the Xbox One X console; they also confirmed HDMI 2.1 support (enabling up to 8K resolution at 60 frames per second and up to 120 frames per second at 4K resolution), variable refresh rate (VRR) support, hardware ray tracing support, GDDR6 RAM, and custom made NVMe SSD for storage (potentially used as a sort of virtual RAM).

The console's name and design were revealed at The Game Awards 2019, alongside the planned Holiday 2020 release window. The full technical information that we've compiled below was shared between late February and early March 2020, though.