actually there are 3 possibilities:
1. your GPU is damaged (test it in another system)
2. faulty driver install (use DDU in safe-mode (requires a reboot) to clean driver and install latest after second reboot)
3. a CryptoMiner hacked your Windows and is running in the background (you can check that usually in taskmanager - performance tab; GPU load)
PC: R7 2700X @PBO + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS