So if a 4K image is rendering at a solid 30 frames per second and you want to hit a 60 frames per second target, halving the resolution would allow the GPU to hit this target assuming ideal conditions and no other settings are changed.
So if a 4K image is rendering at a solid 30 frames per second and you want to hit a 60 frames per second target, halving the resolution would allow the GPU to hit this target assuming ideal conditions and no other settings are changed.