Most emulators that are tough under the hood for things like PS2 and Saturn are usually designed for Nvidia cards. But even that is spotty. I have a 1060 ti which is nowhere near top of the line but is also fairly far from being garbage or outdated and even that has trouble with a lot of PS2 games. Probably because i also have a really old 4core processor from like 2012. But on that subject i emulate dolphin just fine so I highly doubt it needs any decent i5 if it even really needs an i5 at all