Higher-End iMac's Ports Are All Thunderbolt 4 - MacRumors
Skip to Content

Higher-End iMac's Ports Are All Thunderbolt 4

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
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.

Related Roundup: iMac
Buyer's Guide: iMac (Don't Buy)
Related Forum: iMac

Popular Stories

apple price hike

Apple Just Increased Prices on MacBooks, iPads, and More

Thursday June 25, 2026 5:44 am PDT by
Apple today dramatically increased device prices across multiple product lines. Subscribe to the MacRumors YouTube channel for more videos. After temporarily taking it down earlier today, Apple's online store is back up with a series of product price increases. The changes are as follows: HomePod mini: $129, up from $99 (+$30) HomePod: $349, up from $299 (+$50) Apple TV: $199, up from...
iphone x flexible oled display

Apple Plans Wider Color Gamut for Future MacBook Pro, iMac, and iPad Pro

Monday June 29, 2026 6:35 am PDT by
Apple plans to adopt OLED panels capable of displaying a much wider range of colors, according to a new report from research firm TrendForce. The new panels would cover 95% of the BT.2020 color standard, which describes a far broader spectrum of colors than the DCI-P3 standard Apple's screens currently target. In practice, that means deeper, more accurate reds, greens, and blues. Reaching...
LEGO imac g31

LEGO Considering Bondi Blue iMac G3 Set

Tuesday July 14, 2026 5:12 pm PDT by
LEGO today said the iMac G3 project submitted for consideration on its "Ideas" site has been moved to Parking Lot status, which means it hasn't been ruled out and could still possibly be turned into an official LEGO set. On its "Ideas" website, LEGO lets fans submit mockups and suggestions for future LEGO sets. Any project that gets at least 10,000 votes goes to the LEGO Review Board and has ...

Top Rated Comments

22 months ago
That metal green is stunning
Score: 12 Votes (Like | Disagree)
adamw Avatar
22 months ago
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)?
Score: 4 Votes (Like | Disagree)
22 months ago
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
Score: 3 Votes (Like | Disagree)
topdownjimmy Avatar
22 months ago
I assume it still can't be used as an external display?
Score: 3 Votes (Like | Disagree)
fwmireault Avatar
22 months ago

ah, an exciting week definitely suggests nothing else today
I've noticed at the end of the keynote, Ternus said: Join us tomorrow morning for another exciting announcement
Score: 2 Votes (Like | Disagree)
22 months ago

The 8-core CPU and 8-core GPU models only have two ports, but both of those are Thunderbolt 4.
@jclo

The 8-core models don’t have Thunderbolt 4 ports. They have Thunderbolt / USB 4 ports that support Thunderbolt 4.

Thunderbolt 4 certification requires support for two external displays.
Score: 2 Votes (Like | Disagree)