Hi,
Any 68020, with - added - fast memory can run most of my ports. Gyruss, for instance, struggles slightly on A1200/020 no fast, so on A600/020 with fastmem it will run very well. Same goes for all ECS games (except maybe US Champ vball because you need 2MB chip to run it). I'm interested in the results but 68020+fastmem is the killer machine for whdload/games.