←back to thread

Apple Silicon M1 chip in MacBook Air outperforms high-end 16-inch MacBook Pro

(www.macrumors.com)
1080 points antipaul | 1 comments | 12 Nov 20 00:56 UTC | HN request time: 0.208s | source
Show context
andy_threos_io ◴[12 Nov 20 04:34 UTC] No.25066484[source]▶
Can somebody explain how is M1 going to work on larger GPU tasks (rendering, encoding etc) with it's memory bandwidth M1 total memory bandwidth is 68.2 GB/s (128 bit LPDDR4x-4267)

AMD Radeon Pro 5600m memory bandwidth is 394.2 GB/s (2048 bit HBM2)

https://www.techpowerup.com/gpu-specs/radeon-pro-5600m.c3612

replies(5): >>25066523 #>>25066548 #>>25066569 #>>25066693 #>>25067438 #
gjsman-1000 ◴[12 Nov 20 04:42 UTC] No.25066523[source]▶
It's not clear, but here's some knowledgeable speculation:

- All M1 models only have 1 Thunderbolt Controller, thus can only handle 2 Thunderbolt ports on all announced models so far.

- All M1 models only support 1 monitor, but up to 6K.

- No M1 model supports >16GB of RAM or 10GB Ethernet.

All of the above seem like bandwidth limitations to save cost that a future "M1X" or "M2" or "X1" would be extremely likely to fix, and that's where you'll see the bandwidth increase.

replies(3): >>25066573 #>>25066584 #>>25066906 #
fludlight ◴[12 Nov 20 04:55 UTC] No.25066584[source]▶
Is there a legitimate laptop purpose that requires 10GB internet? If so, how niche is that purpose?
replies(5): >>25066788 #>>25066803 #>>25066805 #>>25067494 #>>25069087 #
1. jmnicolas ◴[12 Nov 20 07:48 UTC] No.25067494[source]▶
I have about 20TB of data on several external hard disks / nas / machines. Due to some disks failures I had to move these data and believe me I wish I had 10GB Ethernet so that transfers don't take literally days.