Is the max specs for the X870 DisplayPort?

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Oct 1, 2024
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What is the max resolution for the DisplayPort with the X870 motherboards?

The spec sheet says 3840x2160@60Hz, but that seems low for the DP1.4 standard, DP1.4 HBR3 should be able to do 5120x2880@60Hz.

I want to chain 3 displays with MST for a total resolution of 7680x1440@60Hz, but I don't know if this is possible with the new motherboards.

The CPU I use in the 9950X, will I be able to do 5K@60HZ with the new motherboards?
 
I see two USB4 Type-C ports with DisplayPort Alternate support at maximum on X870E/X870 mainboards. It supports 2x4K@60Hz with 9950X CPU.
 
Solution
I just tested it and it will do at least 3840x2160, 32 bit RGB, 10 bpc, full dynamic range HDR, @ 138 Hz

If it has that USB4 logo on it and it does it can do what a USB4 does.
 
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