sudo dmidecode -s system-product-name && sudo dmidecode -s system-version HP ProBook 4520s
lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Robson CE [AMD Radeon HD 6300 Series] [1002:68e4] (prog-if 00 [VGA controller])
sudo dmidecode -s system-product-name && sudo dmidecode -s system-version
HP ProBook 4520s
lspci -vnnn | perl -lne 'print if /^\d+\: .+(\[\S+ \:\S+\] )/' | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Robson CE [AMD Radeon HD 6300 Series] [1002:68e4] (prog-if 00 [VGA controller])