Microsoft started manufacturing the Xbox Series X and S consoles a bit later than it would have liked, because it wanted all RDNA 2 features. This was revealed by Phil Spencer in an interview with The Verge.

Microsoft started manufacturing the new consoles in late summer while Sony started earlier, opting not to wait for AMD to finalize the design of its new GPU architecture. According to the company, “Xbox Series X|S are the only next-generation consoles with full hardware support for all the RDNA 2 capabilities”.

This includes hardware-accelerated Ray-tracing, Mesh Shaders, Variable…

Original source: https://www.gsmarena.com/microsoft_delayed_production_of_the_xbox_series_x_and_s_consoles_to_get_the_full_rdna_2_feature_set-news-46450.php