Most powerful PPC that can be put in an A1200?

[haywirepc]

I agree, ppc accelerator was a nice idea, but since software for them never caught on... its nearly useless on a 1200. You'd be much better off with a 68060 accelerator, which almost all amiga software will benefit from.

[haywirepc]

From an outsider looking in there is some confusion about amiga os...

Amiga OS 1.x to 3.9 - is for 68000 based processors. 68010, 68020,68030,68040,68060. Most amiga software is written for these.
The original amiga line of computers.

Amiga OS4.0+ is for Power pc processors only.
Power pc was supposed to be the successor to the 68000 series of machines, or planned to be... After Amiga INC imploded, others stepped in to do this.

AROS is a freeware open source implementation of amiga os, originally designed for x86 processors but now available on many platforms...

MorphOS is another amiga os next gen system designed for power pc processors. It runs on custom older hardware created for it (pegasos) and
also some Mac g4 or less models...

You may also check out AROS vision for your amiga 1200.

[haywirepc]

Legacy programs run very well on 4.1 these days.

Would I recommend someone buys an X1000 to play Lemmings? Absolutely not, there's cheaper and better ways to do that, but all in all the old stuff works quite well.

You can not run many very demanding aga games on Amiga os4.1 with the low spec sam boards without MAJOR lag. At least I don't think so. If you can, post a video, I'd like to see that.