I have a Core 2 Duo, and a midrange i5/gtx970 rig (which works surprisingly well with GM using Mame's HLSL and an Asus LCD monitor that actually supports switchres, with a range of available refresh rates from 49 to 64 hz). I have all kinds of hardware, old and new. It's just a shame having to decommission some. Also, the documentation tends to lag the current requirements.