Some of the games in that folder do not run at full frames on any desktop system. The CHD games are an example. Some only require tweaks. The cruisn' series for example ran better on my A3700+ and A4000+ systems with frameskip set to a manual setting instead of auto. I really don't understand the significance of the folder, however, as at least one of the games is in not working status. My theory is that this folder group was built around drivers that have A64 optimization benefits and the driver bases involved were just tested on a 3700+; seem likely?