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Higher-End iMac's Ports Are All Thunderbolt 4

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Apr 12, 2001
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Apple today released new iMac models, and while there are few external changes with the exception of some color tweaks, Apple made several internal updates to the machine. The inclusion of the next-generation M4 chip is the biggest update, but the ports have also seen improvement.

imac-thunderbolt-4-ports.jpg

For the M4 iMac models with 10-core CPU and 10-core GPU, all four of the USB-C ports support Thunderbolt 4 transfer speeds of up to 40Gb/s. The prior-generation M3 iMac with four ports had two Thunderbolt 3 ports and two USB-3 ports.

The 8-core CPU and 8-core GPU models only have two ports, but both of those are Thunderbolt 4. All of the USB-C/Thunderbolt 4 ports also support USB 4 and USB 3.1 Gen 2.

Pricing on the iMac starts at $1,299 for the 8-core CPU/GPU version, while the 10-core CPU/GPU models with four ports are priced starting at $1,499. Apple is accepting pre-orders for the new M4 iMac models as of today.

Article Link: Higher-End iMac's Ports Are All Thunderbolt 4
 
Article Link
https://www.macrumors.com/2024/10/28/imac-thunderbolt-4-ports/
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slightly off-topic to the iMac announcement itself, but are we expecting one new mac per day? something else later today?

they said "starting monday morning" but no further information about announcement timing
 
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Eorlas said:
slightly off-topic to the iMac announcement itself, but are we expecting one new mac per day? something else later today?

they said "starting monday morning" but no further information about announcement timing
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I would expect a new announcement tomorrow, not later today. That's how they've handled these releases in the past (although it is not something they have done many times before).
 
So how will this affect the ****** speeds I get from my Samsung T7 ssd on my M1 iMac?
 
The base model feels like a nicer deal now that it has 16GB but the next model up also seems worth it, especially at the $150 price difference for edu... gig ethernet, +2 cpu cores, +2 gpu cores, +2 tb4 ports, +1 external display support, touchID, and maybe still an extra cooling fan, right?

I feel like with 16GB and 2 external displays effectively standard, the regular M-model Apple Silicon has finally reached full maturity, and what a beautiful thing it is.
 
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Are all 4 Thunderbolt 4 Ports on the 10 Core M4 iMac model sharing any Thunderbolt channels, or do each of the Thunderbolt 4 ports have its own (non-shared, full speed) Thunderbolt 4 data channel for the full speed data transfer that Thunderbolt 4 allows (40 Gbps)?

Also when do you think we will see full speed (80 Gbps) Thunderbolt 5 port support on Mac models (M5, M6, or M7)?
 
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16 GB of RAM to start and all Thunderbolt 4 ports is actually pretty awesome news and more than I expected.

Now if only the "new" Magic Mouse didn't to be flipped upside down to charge, it would all have been amazing news. 😂
 
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It appears that the base M4 chip has not only some CPU and GPU disabled, but also one display controller.
 
Last edited:
martinsmac said:
I'd like to know about the USB controllers and thus concurrent USB speeds. Anyone seen those details?
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It's all USB 3.2 (3.1) Gen 2, aka USB 10 Gbps



I like to see that proved in a real world test. (for the TB 4 model).
 
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