This command will print out the model and make of your graphics card. This is another command to run on an unknown computer to see what hardware is in it.
[email protected]:~$ lspci -vnn | grep VGA -A 12 | head -n 1 01:00.0 VGA compatible controller : Advanced Micro Devices, Inc. [AMD/ATI] Turks XT [Radeon HD 6670/7670] [1002:6758] (prog-if 00 [VGA controller])
This command will also print out the required information.
[email protected]:~$ sudo lshw -numeric -C display [sudo] password for jason: *-display description: VGA compatible controller product: Turks XT [Radeon HD 6670/7670] [1002:6758] vendor: Advanced Micro Devices, Inc. [AMD/ATI]  physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list rom configuration: driver=radeon latency=0 resources: irq:35 memory:e0000000-efffffff memory:fbcc0000-fbcdffff ioport:ce00(size=256) memory:fbc00000-fbc1ffff
And this is yet another command that will print the same information.
[email protected]:~$ inxi -G | head -n 1 Graphics: Card: Advanced Micro Devices [AMD/ATI] Turks XT [Radeon HD 6670/7670]
This is a good way to determine what hardware you have installed in your Linux machine, say if you bought a computer and you want to see what is installed in the slots or built-in to the motherboard. Speaking of motherboards, this command will print out the model and make of your motherboard.
[email protected]:~$ inxi -M | head -n 1 Machine: Mobo: Gigabyte model: H55-USB3 v: x.x Bios: Award v: F4 date: 02/12/2010
Give these a try and see how you go. Linux really does have a million ways of getting hardware information.