Your i5 9600K is slowing down due to the GTX 1660's limitations.
Your i5 9600K is slowing down due to the GTX 1660's limitations.
It seems the situation involves a CPU consistently at full capacity while the GPU isn't being used efficiently. This suggests the CPU might be limiting performance for certain games. The exact impact depends on the game, but you're likely dealing with lower frame rates or stuttering. No specific refresh rate was mentioned, but it would depend on the display settings.