Yes you're right, technically it's 2x bus speed moving 16->32 bits, but I was guestimating the effect of the cache to allow the 020 to stay off the bus ie. inte

Yes you're right, technically it's 2x bus speed moving 16->32 bits, but I was guestimating the effect of the cache to allow the 020 to stay off the bus ie. interleave cache and bus access. What would have made more sense would be for the object processor be dropped, so Tom and Jerry could be placed on the same chip with some scratchpad ram to share amongst the processors. You'd have a big cost saving on a single chip system, and you could also move to 1.5mb dual bank ram probably at price parity. 020 probably would've been too expensive, but you needed to go large or go home in the console world, I'd have gone with CD to drop the ROM costs so hopefully over a year projection the upfront hardware cost would amortise with the CD savings. A single chip might have allowed an 020+CD at a $300 launch price rather than $250. The Saturn architecture is a completely bizarre kettle of fish even vs the Jaguar! I can see where the pinch points were for the Jag, but the Saturn looks as though they redesigned the machine twice, and without actually having any input from the AM2 team (Virtua fighter). Certainly from a systems perspective there's a lot of scope for making it more efficient. I kinda of thought the TG-16 was straightforward from a programmer perspective? The custom chips had a few things they could do and that's it. The demos I've seen (pouet) basically seem to use the hardware as it was intended ie. no fancy tricks that you can coax out of it. I'd say the SNES was more crippled by bottlenecks, probably stemming from the initial backwards NES compatibility that never materialised?