I believe the Escalade in its standard 6.2L form makes 355 awhp or 375 rwhp (average 365), while the Navigator makes 395 awhp or 405 rwhp.
The Escalade also struggles with a higher-end torque curve (at least for a big displacement engine). The Escalade-V is not going to serve as the purpose for high-performance, but really as a replacement for the "normal" Escalade.
The diesel and V-Series both will effectively replace the 6.2NA model depending on the price range for 2023/2024.
V-Series Escalades will deliver between 550 and 600 awhp. How much power does the turbodiesel make? Around 240 awhp (it's highly underrated).