The A20 could theoretically handle 4K gaming. Just depends on the game developer. The iPhone 18 Pro has 7 GPU cores, and it has about 12GB unified RAM to share between the CPU, GPU, and Neural Engine.
Plus the ARM instructuin set is a bit more modern, so there is probably performance gains to be had that x86 couldnt handle
The A20 could theoretically handle 4K gaming. Just depends on the game developer. The iPhone 18 Pro has 7 GPU cores, and it has about 12GB unified RAM to share between the CPU, GPU, and Neural Engine.
Plus the ARM instructuin set is a bit more modern, so there is probably performance gains to be had that x86 couldnt handle