Can Intel® UHD Graphics 770 Integrated graphics output a single 4k120hz?

[anotherdev]

I'm looking to getting a N100 processor-based miniPC. The cpus were released Q1 2023. 

The spec sheet says maximum resolution is 4K60hz * 3 (three outputs)

4K Support -Yes, at 60Hz
Graphics Output eDP 1.4b, DP 1.4, HDMI 2.1, MIPI-DSI 1.3

Max Resolution (HDMI)‡4096 x 2160@60Hz
Max Resolution (DP)‡4096 x 2160@60Hz
# of Displays Supported ‡3

I know that 4k120hz requires bandwidth 25.82Gbit/s so I need to use HDMI 2.1 (42.6 Gbit/s) or DP 1.4 (25.92Gbit/s) cables.

If I only use 1 output instead of all 3, will the iGPU be powerful enough to output the maximum supported output of my connected TV (4k120)? 

There is a similar question but they're asking about lower res (2k) higher refresh (144hz) for UHD 550 -- and it worked great. So I assume it will work.

Looking for conformation. Thanks

[MUC]

If you'd buy an Intel NUC with Iris Xe then you can get 4K @ 120 Hz with an active USB-C/Thunderbolt > HDMI cable.

See this: community.intel.com/t5/Intel-NUCs/Do-Intel-NUC-11-12-13-support-4K-UltraHD-144Hz/m-p/1507122#M101872

[Jean_Intel]

Hello anotherdev,

Thank you for posting in the Intel Communities. To better answer your question about the support for 4k120hz when using the Intel® UHD Graphics (Intel® Processor N100), we would like to look into this matter internally. We will post back as soon as we have further details.

Best regards,

Jean O.

Intel Customer Support Technician

[Jean_Intel]

Hello anotherdev,

Thank you for your patience. Based on the processor specifications, the maximum resolution is 4K@60Hz. In case you prefer to have a 120Hz refresh rate, then the resolution must be lowered according to supported resolutions and refresh rate in preferences.

Best regards,

Jean O.

Intel Customer Support Technician

[Jean_Intel]

Hello anotherdev,

We hope you are doing fine.

We have not heard back from you, so we will close this thread. If you need additional information, submit a new question since this thread will no longer be monitored.

Best regards.

Jean O. 

Intel Customer Support Technician.

[anotherdev · Accepted solution]

The miniPC I bought finally arrived and after testing, Success!

Contrary to the official reply above:

the Intel® UHD Graphics 770 Integrated graphics inside a 12TH Intel Alderlake-N N100 CPU

CAN INDEED output at 4k120hz via the DisplayPort 1.4 output. 

My use case:

1. SIMODEWA MiniPC DP 1.4 outputting @ 4k120 
2. Cable used is ULT-WIIQ 8K@60Hz DisplayPort to HDMI Adapter via Amazon UK £28
3. HDMI 2.1 converted output end goes into LG TV

[MUC]

That's a positive surprise!

The specs suggested that N100 couldn't do that. Thank you for the feedback, very interesting.
By the way: The ULT-WIIQ 8K@60Hz DisplayPort to HDMI Adapter contains the Synaptics VMM7100 protocol converter. This is the most stable solution so far.