RIP Jay Miner who watched his unified memory daughters Agnus, Denise and Paula be slowly murdered by Jack Tramiel's vengeance against Irving Gould. [Why couldn't the shareholders have stormed their boardroom 180 days before the company ran out of cash, installed interim management who, in turn, would have brought back the megalomaniac Founder that would, until his dying breath, keep spreading their cash to the super brilliant geniuses that made all the magic chips happen and then turn the resulting empire over to ops people to make their workplace so uncomfortable they all retire early and live happily ever after on tropical islands and snowy mountain tops?]
Yep! Though one could argue the Amiga wasn't true unified memory due to the chip RAM limitations. Depending on the Agnus revision, you'd be limited to 512, 1 meg, or 2 meg max of RAM addressable by the custom chips ("chip RAM".)
fun fact: M-series that are configured to use more than 75% of shared memory for GPU can make the system go boom...something to do with assumptions macOS makes that can be fixed by someone with a "private key" to access kernel mode (maybe not a hardware limit).
