Most powerful PPC that can be put in an A1200?

[Karlos]

The most powerful PPC that you can fit to an A1200 would be a 604e 233MHz* courtesy of a CyberstormPPC. However, that also requires a busboard with an A4000 compatible CPU slot, such as the one that came with the Micronik infinitiv tower. All of which would cost an absolute arm and leg nowadays.

*or faster, if you can find a modded one.

[Karlos]

Weren't those Z3-busboards too unstable with compatibility problems, that everyone who tried to use bigbox accelerators went pretty fast back to some other solution?

I had a friend that owned a Micronik tower/Z3 board back in the day and fitted a CyberStorm MK III to it. I seem to recall it working fine. However, he later sourced an A4000 and using the card in that was a no brainer.

As the CyberStorm MK III is basically the same  board as the CyberStormPPC, sans a few component parts, I expect it ought to be possible.

As I said though, very expensive.

[Karlos]

PPC is pretty pointless in a 1200, RTG is nice to have of course but you can still get a pretty decent WB display happening with just an Indivision AGA and for games and most of the legacy applications AGA (68k) is all you need.

Actually, I'd say the BVision board was probably one of the most significant updates my A1200 ever had. You might have your IndivisionAGA today, but remember that back when the BVision was released, most of the scandoublers/flickerfixers for A1200 were less than stellar.

Going from an auto-scrolling 16 colour 1280x1024 PAL interlace (helped out by MagicTV) display to a rock solid 16-bit colour 1280x1024 80Hz display that was basically faster in every way, was quite the eye opener (if you pardon the pun).

I guess if you don't run much productivity software, you can live without it, but seriously, RTG added another few years of sole machine usability to my system and that's no joke.