Re:Intel demonstrates a 28-core processor running at 5GHz
by loeg on Tuesday June 05, 2018 @02:22PM
(#17240558)
It's true both Intel and (especially) AMD sell fused-off core CPUs as downmarket models, it's not true that Intel only uses a single die from their 4 core i3 models all the way up through their, e.g., 28-core models (as mentioned in TFA).
AMD's Zen arch is an 8 core die, and they get very high yields out of it. Even the downmarket parts mostly or entirely had 8 working cores before fusing off.
Intel's big 28 core parts are (at least historically) a huge single die, with very very low yields. They charge a huge dollar amount for the parts because they cannot afford not to — the manufacturing costs are very high. There is some speculation that this 5GHz part is actually a bridged smaller die design, like AMD's Zen platform. Intel's bridge design is called "EMIB," if you want to google that speculation further.
AMD's Zen arch is an 8 core die, and they get very high yields out of it. Even the downmarket parts mostly or entirely had 8 working cores before fusing off.
Intel's big 28 core parts are (at least historically) a huge single die, with very very low yields. They charge a huge dollar amount for the parts because they cannot afford not to — the manufacturing costs are very high. There is some speculation that this 5GHz part is actually a bridged smaller die design, like AMD's Zen platform. Intel's bridge design is called "EMIB," if you want to google that speculation further.