Current setup:
MOBO: GIGABYTE B450M DS3H
CPU: Ryzen 5 5600
GPU: Radeon 6800 XT
RAM: 32 GB 3600 MHz CL16
PSU: EVGA 750 GQ
Box: SilentiumPC Signum SG1V EVO TG ARGB
Monitor: 1080P resolution
So I swapped my 1660 Super for 6800 XT. With 1660 Super I didn't reach high FPS, but it was stable. As I swapped it for 6800 XT I started seeing much higher average FPS, but very low 1% and 0.1% FPS. For example, even in Rocket League I have 0 FPS in 1% low and 0.1% low.
Columns with FPS: current FPS; average FPS; 1% low; 0.1% low.
Rocket League: 144 (capped); 68; 0; 0
DayZ Standalone (all max. settings, heavy location); average is high after menu: 91; -; 0; 0
Kingdom Come Deliverance (all max. settings): 137; 122; 1; 1
Cyberpunk 2077 (all max. settings; all ray tracing off; for some reason cannot take screenshot in game): 155; -; 12; 8
Before removing 1660 Super I uninstalled all NVidea drivers with DDU. After plugging in 6800 XT I installed AMD Adrenaline drivers. Tried switching voltage in windows settings (power options), did not help.
Could you please support or suggest what could be probable causes? I suppose that this is not a normal behavior.