Question Ryzen 9900X+X870E: Max no. displays from iGPU?

[ballerboy]

Does anyone know:

1. Max no. displays (4K @ 60Hz) supported from integrated graphics on Ryzen 9900X? (I already tried to search, some sources say THREE, other say FOUR, anyone know which is correct?)
2. Max no. displays (4K @ 60Hz) which can be connected via USB 4 + HDMI ports on X870E Mobo?

I am planning new build using Ryzen 9900X and an X870E Mobo. Will not be used for gaming, for productivity only. I won’t install a discrete graphics card, will rely only on integrated graphics.

I wonder how many displays (4K @ 60Hz) I could drive from the CPU and Mobo? All these Mobos have 1 * HDMI socket and 2 * USB 4 (supporting DP over USB).

In principle, each USB 4 port could output to two 4K @ 60Hz (using an MST USB-C to dual DP adaptor). So I wonder whether it might be possible to drive FOUR, or even FIVE 4K @ 60Hz displays?

Not yet decided which Mobo to buy, will likely choose from one of the below six options:

1. ASRock X870E Nova WiFi ATX
2. ASRock X870E Taichi Lite
3. ASUS ProArt X870E-Creator
4. GIGABYTE X870E AORUS PRO
5. GIGABYTE X870E AORUS MASTER
6. MSI MPG X870E CARBON WIFI

I wonder if anyone has tested max no. of 4K displays which could be connected via any of these Mobos from iGPU?

 

[kurdtnz]

Personally, I think it's a big ask for a iGPU, even a 9900X to run a 4K multimonitor set up, iGPU's are only really intended for basic tasks.

 

[Eximo]

Everything I can find says up to 4 displays depending on the motherboard.

I can't find any information about maximum supported resolution(s) 4 x 4K would be pretty extreme, but maybe at reduced hz?