Why does crash to desktop near end of battle sometimes occur?

[Kilgore Trout]

I have an i5 cpu, a dedicated AMD Radeon R9 M562x gpu with 2g memory, and 4g of RAM.

I occasionally get a crash to desktop near the end of a battle. "Medieval II Kingdoms has been forced to close due to an unknown error". or something like that. This usually seems to happen if I haven't restarted the game for awhile. I believe that this is a fairly common occurrence for many players.

I will buy a new gaming computer soon, so I wonder what I need in order to lesson the frequency of this crash? Is the cpu or gpu more important here? Or will this crash occur no matter how high end my computer's components? Is the only solution to restart frequently regardless of my computer's components?

Thanks in advance!

[Gigantus]

With M2TW it is the processor speed that is important as it only uses one core. Everything else (graphics, memory) nowadays is more then sufficient.