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The M1 laptops already have Thunderbolt 3 which is 40Gb/s and actually faster than PCIe 4.0 x16 (only ~35Gb/s). Also these laptops have 8 CPU cores (4 high per
by qbasic_forever 6y ago
The M1 laptops already have Thunderbolt 3 which is 40Gb/s and actually faster than PCIe 4.0 x16 (only ~35Gb/s).
Also these laptops have 8 CPU cores (4 high performance, 4 high efficiency) and 8 entirely separate GPU cores. It's a powerhouse of multiprocessing, especially when you consider it's in a laptop that gets 20 hours of real battery life.
- lavishlatern 6y agoThunderbolt 3 is 40GBits/s (5GB/s). PCIe 4.0x16 is over 6x the bandwidth.
- smoldesu 6y agoPowerhouse is a bit of an overstatement, especially with the GPU, which is honestly a pathetic offering for a device bearing the "Pro" name. Even still, the M1's multi-threaded performance can be topped by the cheaper Ryzen 7 4800u, which was shipping in $500 laptops long before the M1 even hit the market. It's actually kinda disappointing to me that Apple didn't take advantage of the 5nm node they spent so much time and money securing.
- ustolemyname 6y agoA PCIe 4.0 x16 link is 32GB/s in one direction. Capital B. Quite a bit faster. It's also fully bidirectional, allowing for the same speed in the other direction at the same time. Thunderbolt is capped at 40Gb/s total bandwidth.