The Gigabyte GS27FC is not fully compatible with the PS5 for 120FPS at 4K resolution. Here are the key points:

- The monitor has a resolution of 1920x1080 (Full HD), which is not 4K.
- It lacks HDMI 2.1 bandwidth, which is necessary for 4K @ 120Hz support.
- The GS27FC can display a 120Hz signal, but only at its native 1080p resolution, not at 4K. It supports up to 180Hz refresh rate at 1080p, but this is limited by its resolution and lack of HDMI 2.1.