Quick Answer
Grand Theft Auto VI will target a locked 30 FPS at dynamic 1080p on the Xbox Series S. Due to the console's 4 TFLOPs GPU compute limit and 10 GB shared memory bandwidth, a 60 FPS Performance Mode is not technically feasible on Series S hardware.
Series S Hardware Bottlenecks
With the Xbox Series S retailing as a popular budget console in the US ($299.99 USD) and UK (£249.99 GBP), gamers are analyzing how it handles GTA 6's complex CPU crowd simulation and RAGE 9 physics.
Technical analysts confirm that memory bandwidth limitations (10 GB GDDR6) make 30 FPS with dynamic 1080p scaling the most stable target for Series S.