Which MacBook support 4k240 over DP ?

[Love-hate 🍏 relationship]

On my MacBook Air m1 I can reach 4k144hz easily

But I’m very confused about the new Mac’s

Is there any Mac that can do 4k240 over display port ?

Im hoping they’ll bring that to MacBook Air m4

 

[joevt]

4K240 is possible on some Apple Silicon Macs. One person reported 4K240 working on M3 Macbook.

On Intel Macs, a patch exists to switch DSC target bpp. The default is 12 but 4K240 requires 11 or 10. You can go down to 8 (I haven't tried 6). Another patch is used to remove a 500kHz horizontal scan rate limit since 4K240 has horizontal scan rate of 583 kHz.

 

[Love-hate 🍏 relationship]

4K240 is possible on some Apple Silicon Macs. One person reported 4K240 working on M3 Macbook.

On Intel Macs, a patch exists to switch DSC target bpp. The default is 12 but 4K240 requires 11 or 10. You can go down to 8 (I haven't tried 6). Another patch is used to remove a 500kHz horizontal scan rate limit since 4K240 has horizontal scan rate of 583 kHz.

that's the confusing part, some people say they can, other says they can't. I can't get a conclusive anaswer about it and what are the conditions (over DP)

yeah Ik about intel, but im on arm

 

[HobeSoundDarryl]

The answer as a short list from Apple's own website.

 

[Love-hate 🍏 relationship]

The answer as a short list from Apple's own website.

I know but it’s only about HDMI not dp

 

[HobeSoundDarryl]

Ahhhhh, sorry I overlooked that. You are seeking such a specific answer, I'd open a sales chat with Apple directly and get the word straight from them. Somebody around here may know and may find this thread and get you the answer but you could probably get it near immediately through a quick chat with Apple.

 

[Love-hate 🍏 relationship]

Ahhhhh, sorry I overlooked that. You are seeking such a specific answer, I'd open a sales chat with Apple directly and get the word straight from them. Somebody around here may know and may find this thread and get you the answer but you could probably get it near immediately through a quick chat with Apple.

no problem man

the french websites states that 4k240 works for single display (over TB)

 

[joevt]

(over TB)

this includes USB-C DisplayPort Alt Mode which means a USB-C to DisplayPort cable or adapter should also work as long as it's 4 lanes of HBR3 which is a problem for USB-C to USB-C if the display is set to having USB 3.x from USB-C instead of USB 2.0.