https://wccftech.com/david-cage-isnt-a-big-fan-of-the-xbox-series-s-most-devs-will-focus-on-lower-end/

The Xbox Series S only officially materialized last month, after well over a year of rumors that the Xbox Series X would have a smaller, cheaper, and far less powerful sibling codenamed 'Lockhart'.

That turned out to be actually the case. When the official specs rolled in, we learned that the main difference with the Xbox Series S can be found in the GPU, which only features about 4 TFLOPS of computing power compared to the Series X's 12 TFLOPS. But that's not a huge issue, since it is targeting 1440p resolution (though some games are actually going to be running at 1080p) instead of UltraHD. The CPU, however, has lower clocks (about 200 MHz) as well, and most critically, there's only 10GB of RAM instead of the Series X's 16GB.