If you installed it from Intel you can find out in control panel -> Program and features, with the version column enabled.
ROG Dark Hero Z790 | 13900KS @5.7 GHz | g.skill 2x48GB 6800 MT/s | ROG Strix 4070 Ti | EK Nucleus 360 Dark | 6TB SSD/nvme, 16TB external HDD | 2x 1440p | Vanatoo speakers with Klipsch sub | Fractal North XL case