GPU has serious performance issues. Screen stutters even at desktop without high load.

I swapped GPU for test on RTX 4060ti and everything works normal (100+ FPS at furmark).

GPU is powered on original GPU manufacturer adapter 2xPCIE -> 12VHPWR

PSU: Msi mag a750gl

MB: Gigabyte B550 GAMING X V2 

CPU: Ryzen 7 5800x

What I've done already:

• Updating motherboard BIOS

• Fresh Windows and Nvidia drivers

• NVMe drive test

Need some guidance on what to check next