sean_vn wrote:The 100 Mbytes per second for DRAM read is really fishy.
It's a move.
That's 25 million 32 bit integers per second. I think a 68000 CPU from 25 years ago could nearly equal that. Well, I can't say. Maybe they wired it up to an 8 bit DRAM chip, an 8-bit channel.
Even if that was 32-bit, the memory bus was at best 40MHz then (say an 68040 in a Quadra 840AV, which is big iron compared to an original 68000). So even if you could fetch a word every cycle, that would be 160MB/s read, 80MB/s R/W. And I doubt it could every cycle :-)