How do you know your graphic card memory ubuntu?

To check your graphics card memory on Ubuntu, you can use the terminal command lspci -v -s $(lspci | grep -i vga | cut -d' ' -f1). This command lists detailed information about the VGA compatible controller, including the memory size. Alternatively, you can also install and use tools like glxinfo from the mesa-utils package, which provides information about the GPU and its memory.