In general, drivers for games that have been in MAME for a while won't change. Unless the core code changed somehow, I don't see why it would matter much which version of MAME you run. For example, I've recently looked at Ikari Warriors in MAME 0.122 vs MAME Analog+ 0.71. Both play identically as far as speed, graphics, sound, etc. This is because the game was added ages ago and hasn't been updated. If you try to play a modern game with advanced graphics, you will need a faster machine no matter what version you run. However, I believe there was a change in some of the core MAME code in ~0.96 that changed how the graphics were displayed. I remember having to set up my video options after the update, so that might be a limiting factor for the low powered card you are talking about using (compared to modern standards).