the Radeon Xpress is indeed a chipset, and it includes an integrated Radeon X300 graphics chip.
This was at the bottom of the range when it came out in 2005, and is now very long in the tooth. not to mention that it's of the '
I will steal your RAM whenever I feel like it
' variety, which is never good news.
There's probably not much you can do to improve matters. try updating your drivers, but if that doesn't help, then only a new Graphics card will.
Josh Osborne - Central Innovation
HP Zbook Studio G4 - Windows 10 Pro, Intel i7 7820HQ, 32Gb RAM, Quadro M1200