[unusualmonkey]

Remember that AMD has been making x86 SoC's with unified memory for quite some time.

[jsheard]

Yeah but they had pretty meagre memory bandwidth until now, aside from the parts they made exclusively for Xbox and Playstation. AMD didn't seem to be interested in bringing fast unified memory to real computers until Apple did it. Now they need to double up the bus again to make an M4 Max-alike...

[unusualmonkey]

In part because it's an odd compromise. With the exception of LLM's which are a decent development... there wasn't a lot of need to high memory, but moderate GPU compute parts. You'd either have a lot of memory and a CPU, or a lot of memory and a beefy GPU.

[babypuncher]

It isn't what the market wanted, and by market I mean OEMs, because I'm sure consumers would have loved it.

The OEMs buying APUs to use in laptops and SFF desktops were more interested in cutting costs than boosting graphics performance. Users who want better 3D performance can buy a higher end laptop with a discrete GPU and juicier profit margin.

[BeefWellington]

It's possible they were restricted by agreements with Microsoft or Sony not to release anything before this year.

[sliken]

Right, but none wider than 128 bits, unless you count PS5 and XboxX.