Re:Memory access on the Apple M1 processor
by kllrnohj on Wednesday January 06, 2021 @03:25PM
(#25661920)
Your analogy was so close! It's Apple comes along and makes an 8 cylinder engine. Since, you know, the other CPUs are 4-wide decode and Apple's M1 is 8-wide decode :)
Re:Memory access on the Apple M1 processor
by ben-schaaf on Wednesday January 06, 2021 @07:23PM
(#25665028)
Zen 3 is effectively 8 wide with their micro-op cache. Intel similarly has been 6 wide for ages.
It's like the difference between the situation where every car uses 4 cylinders, and then Apple comes along and makes a car with 5 cylinders.