![]() Supporting claims of a throughput bottleneck is the Apple TV 4K, which shipped earlier this year with an HDMI 2.1 port.ĭespite the HDMI hardware shortcoming, Apple's M1 Pro chip can handle up to three external 6K displays at 60Hz simultaneously, while the M1 Max adds support for another 6K display and one 4K display at 60Hz. Along with the single HDMI port, 2021 MacBook Pros sport three Thunderbolt 4 ports that can be used for charging, DisplayPort and data transfer of up to 40Gb/s with compatible Thunderbolt 4 or USB 4 peripherals. Why the higher bandwidth protocol was not included in Apple's latest flagship Macs is unclear, though some speculate that M1 Pro and M1 Max bus bandwidths are to blame. ![]() The more flexible HDMI 2.1 standard, released in 2017, can ferry data at up to 48 gigabits per second, enough to support 4K displays at up to 120Hz. Previously, such capability required one of Apple's infamous dongles.Īs spotted by Tapbots developer Paul Haddad, however, the new 14- and 16-inch MacBook Pros rely on HDMI 2.0 and as such are only capable of supporting a single 4K display at a refresh rate of 60Hz. For the first time in five years, Apple's MacBook Pro supports digital video output through an HDMI port, enabling connections to external displays, TVs and other equipment.
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