That CPU is so old that the performance is going to be miserable in any recent version of MAME. Also, MAME runs much, much, MUCH, better on Intel hardware so you're doubly screwed.
I think that integrated ATI chipset includes Radeon X300 graphics but I don't know if CRT_Emudriver supports it. Often, integrated graphics drivers are different than standalone graphics card drivers, especially at the time that hardware was made.
Probably not what you wanted to hear.