Intel Core Ultra 9 285K & Ultra 5 245K CPU Review

[DrMrLordX]

512MB eDRAM would've had much better latencies AND bandwidth than at least 80% of worldwide DDR5 RAM sales. They just needed to iterate on the technology with incremental generational refinements.

Nobody knows what the bandwidth or latency would be like on a modern L4 cache implementation. Also you do not want to be on the hook for implementing eDRAM on some/all of your consumer CPUs when the memory manufacturers are busy focusing on HBM production for some company that is not you.

edit: I'm assuming eDRAM dice would be coming from RAM manufacturers, but if Intel could fab it themselves on one of their own processes then maybe it wouldn't be so bad.

 

[igor_kavinski]

but if Intel could fab it themselves on one of their own processes then maybe it wouldn't be so bad.

I would expect them to do that because they hate paying for stuff. Lunar Lake was cancelled for this very reason.