You can find out your graphics card in Ubuntu by using the terminal. You just need the right command.

Ubuntu: How to find out your graphics card via the terminal

If you want to read your graphics card model in Ubuntu, follow these steps:

• Open the terminal with your keyboard using the key combination [Ctrl] + [Alt] + [T].

• Then enter the command lspci -nnk | grep -i VGA -A2. Confirm the entry with [Enter].

• You will now be given the name or chipset of your graphics card.

• Tip: You can also use the command glxinfo | grep ‘OpenGL version string’ to display the current driver version and its name.