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The new 13-inch MacBook Pro with Touch Bar now has four full-speed Thunderbolt ports

By Kenny Yeo - on 20 Jul 2018, 12:06pm

The new 13-inch MacBook Pro with Touch Bar now has four full-speed Thunderbolt ports

(Image source: Apple)

Thanks to Intel's new 8th generation Core processors, the 13-inch MacBook Pro with Touch Bar now has four full-speed Thunderbolt 3 ports.

Most people are probably not aware of this, but the older 13-inch Macbook Pro with Touch Bar notebooks only has two full-speed Thunderbolt 3 ports on the left. The other two Thunderbolt 3 ports on the right actually operate at slightly reduced speeds.

This is why Apple recommends plugging high-speed devices only into the ports on the left side of the 13-inch MacBook Pro with Touch Bar.

The reason why is because processors used in the older models only offered up 12 PCI Express lanes, which is insufficient to support 40Gbps transfer speeds on all four ports.

Now, the 8th generation processors from Intel offer up to 16 PCI Express lanes, which is enough to support full 40Gbps transfer speeds on all four ports.

This means that any MacBook Pro notebook you buy now will have Thunderbolt 3 ports operating at full speeds.

Source: Macrumors

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