alt Hacker NewsAnd the newly announced/launched Apple M6 has 170GB/s of unified memory bandwidth, meanwhile M5 Ultra gets 1.2TB/s of unified memory bandwidth. https://www.apple.com/newsroom/2026/08/apple-introduces-m6-a... Not sure if the first one is a typo on their press release, can't be just 170GB/s then be pushed for AI use, can it? Could be a different measurement I suppose...
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brandall10 • yesterday at 6:42 PM
From a bandwidth perspective, the ultra is like 8 M5s fused together (@ 150GB/s), that's how it gets to the 1200.
Historically the Pro doubles the base, the Max doubles the Pro, and the Ultra doubles the Max.
If an M6 ultra were released today it would be 1.36TB/s.
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ActorNightly • today at 5:22 AM
GFX vram is still faster.
You got me curious so I looked up the previous chips[0].
Memory bandwidth M1: 68 GB/s M2: 100 GB/s (47% increase) M3: 100 GB/s (0% increase) M4: 120 GB/s (20% increase) M5: 153 GB/s (27.5% increase)
So, M6: 170 GB/s (11% increase) doesn’t seem impossible, though I would have expected more.
[0]: https://www.jdhodges.com/blog/apple-cpu-compared-m1-m3-m3-m4...