On Windows, press Ctrl + Shift + Esc, open Task Manager, go to Performance, and click GPU
On Windows, press Win + R, type dxdiag, press Enter, and check the Display tab
On Windows, open Device Manager, expand Display adapters, and read the GPU name
On Windows, go to Settings, open System, then Display, then Advanced display, and check the adapter details
On macOS, click the Apple menu, choose About This Mac, and read the graphics information
On Linux, open a terminal and run lspci | grep -i vga
On Linux, open a terminal and run lshw -C display
Check the label on the physical graphics card if you can open the computer case
Check the computer or motherboard manual for the installed graphics hardware
Use a system information tool such as CPU-Z, Speccy, or GPU-Z on Windows