For some strange reason GPU usage (and FPS) decreases when engaging Fullscreen Exclusive mode compared to Windowed mode. Observed in Final Fantasy: Crystal Chronicles: My Life as a King with high resolution scaling (6x and 8x). Stand near & looking at the big blue crystal and toggling display mode with Alt-Enter should be sufficient enough to observe the variance.
https://www.youtube.com/watch?v=03GyWry33ws
Edit: It might be that GPU-Z and Task Manager both detect GPU usage the same way and are both wrong for the same reason. MSI Afterburner seems to better detect GPU usage.
https://www.youtube.com/watch?v=03GyWry33ws
Edit: It might be that GPU-Z and Task Manager both detect GPU usage the same way and are both wrong for the same reason. MSI Afterburner seems to better detect GPU usage.
Computer specifications:
Windows 10 Pro x64 | Ryzen 3700X | ASUS Crosshair VIII Hero WiFi Motherboard | 16GB 3600MHz | Geforce 1070Ti | Corsair AX760 PSU
Windows 10 Pro x64 | Ryzen 3700X | ASUS Crosshair VIII Hero WiFi Motherboard | 16GB 3600MHz | Geforce 1070Ti | Corsair AX760 PSU