Comment by cosmic_cheese

11 hours ago

Almost certainly due to bandwidth limitations on older versions of Thunderbolt. Full bit depth HDR 5k @ 120hz requires some absurd data thoughput.

10 comments

cosmic_cheese

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realityking  10 hours ago

I don’t think so. My M3 Pro is on the list as supporting 120 hz but it only has Thunderbolt 4.

Also the base M4 doesn’t habe Thunderbolt 5 and it support 120 hz.

  • strongpigeon  9 hours ago

    > My M3 Pro is on the list as supporting 120 hz

    Can you point me to said list? All I could find was:

    > Mac models with M1, M1 Pro, M1 Max, M1 Ultra, M2, and M3 support Studio Display XDR at up to 60Hz. All other Studio Display XDR features are supported.

    And The Verge reports:

    > There’s also support for adaptive sync that can adjust between 47Hz and 120Hz (if it’s connected to an M4 Mac or later, or the M5 iPad Pro)

    I got an M3 Max and was strongly considering upgrading my old monitor, but if I can't do 120hz, I'll just wait until I upgrade my laptop as well.

    • realityking  4 hours ago

      > Can you point me to said list?

      There’s no list per-se. The MacBook Pro (2021 and later) is listed as supported. The M3 Pro and M3 Max are not listed as only supporting 60Hz while the M3 and M1 Pro are.

  • radley  9 hours ago

    They did say M3, not M3 Pro. You're probably okay.

    (Notice how they listed the M1 chips individually.)