An interesting tweet by an "industry insider" has stirred the pot once more in regard to the performance capabilities of the PlayStation 5 and Xbox Series X. It seems overall that the next-gen console from Sony will offer better performance than Microsoft's effort, with the PS5 also having a superior SSD and RAM. However, the Xbox Series X has the all-important GPU advantage.
https://www.notebookcheck.net/New-vague-specs-leak-claims-the-PlayStation-5-offers-better-performance-than-the-Xbox-Series-X-but-few-are-convinced.452551.0.html