No, the I5 8400 is not compatible with a 2070 Super.
No, the I5 8400 is not compatible with a 2070 Super.
It works, but when you increase the resolution you'll experience lower FPS, easing pressure on the CPU. I recommend choosing a 3600 if possible.
Low quality settings use more CPU power, whereas high quality depend more on your GPU performance. A balanced mix works well for smooth 60 fps gameplay across any resolution. To hit 120 or 144fps, consider upgrading your CPU as well.