I found out the hard way on my first Amiga, a German A2000 rev 4.0 which has the A1000 chipset on it. It also only has 512k chipmem due to the thin Agnus.
Quite a few WHDLoad games worked fine with 8MB fastram and 512k chipmem but there were also a few games that required more chipmem. I think about 1 in 3 games required more than 512k chipmem.
Cheers
