Cache is effectively fastram wired directly to the CPU. They can work both as fast as each other.
If you have sidecar fastram and a cpu socket turbo board, the cpu must talk to the fastram through the Amiga500 bus, which is working at a much slower speed. So performance chokes.
It's like if you have 10 lane 70mph highway and then make it all go over a one-lane stone arch bridge with traffic lights. Big bottleneck.
I know, but why Supra is that much faster? I t doesn't have ram, ram is in sidecar and CPU is 68000, biggest difference to Terrible Fire 520 is tiny 16kb data cache.
Does the Supra feel that much faster though in real life use?
