Graphic monitor for Intel UHD Graphics 620

[WolfgangS]

I have a Lenovo Thinkpad Core i7 8th gen X1 Carbon Notebook with Intel UHD Graphics 620 card under Windows 10.

I want to connect an external monitor (like BenQ SW321c or BenQ SW270c) in addition to the Notebook monitor for image processing in Lightroom and Photoshop (LR in two monitor mode) and have some questions:

#1.: Is the notebook/graphic card combination able to send a 10 bit signal to the external monitor?

#2.: Will the notebook be fast enough to display 4k (UHD) on the second, external, monitor or is it more advisable to operate a QHD display (like benQ SW270c)?

Thanks, Wolfgang

[AndrewG_Intel]

Hello WolfgangS

Thank you for posting on the Intel® communities.

Regarding your questions, we would like to explain the following details:

For question #1:

Yes, it can send a 10-bit signal but it depends on the content being 10-bit, DirectX and Fullscreen mode. The display itself must be 10-bit (not 8-bit with dithering).

The driver will automatically assign this when all requirements are met. Intel is working on an update to Intel® Graphics Command Center to allow users to manually switch to 10-bit but this is work in progress and should be available soon, no ETA though.

For question #2:

The graphics driver and controller can work at 4K@60hz resolution over DisplayPort™ (DP) 1.2 or HDMI 2.0 (for a total of 3 independent active displays). For best performance in 4K resolutions, it is advisable to use dual-channel memory configurations and the more memory RAM the better (since integrated graphics will use up to half of total system memory to drive the video outputs)

Also, we recommend checking the requirements of the apps for minimum/recommended specifications.

Best regards,

Andrew G.

Intel Customer Support Technician

[WolfgangS]

Thank you Andrew. for the good information...

Just to be sure: "8-bit with dithering" means 8-bit FRC?

Wolfgang

[IntelSupport]

Hello WolfgangS

Thank you for your response.

Regarding your last question: "8-bit with dithering means 8-bit FRC?", basically it is the same functionality. Dithering and Frame Rate Control (FRC) relate to the color depth of a monitor panel and these terms are often interchanged. There are a number of FRC algorithms that vary in their effectiveness so they might be some differences.

Please kindly let us know if you have additional concerns or if this thread can be considered solved.

Sincerely,

Andrew G.

Intel Customer Support Technician

[WolfgangS]

Hi Andrews,

Thank you for these very informative answers. Yes the questions are solved, I asked at BenQ, whether some of their monitors (SW271, SW321c, SW270c) have real 10-bit resolution, or whether they are running with 8-bit + FRC panels (it is not clear from their spec. sheets what type of 10-bit they are)...

Wolfgang

[AndrewG_Intel]

Hello WolfgangS

Thank you for your response.

That is a good idea to check also with the manufacturer of the displays so you can have all the proper information from all the parts involved.

Since you consider the questions are solved, we will proceed to close this thread now.

However, if you need any additional information, please kindly submit a new question as this thread will no longer being monitored. We will be glad to hear back from you.

It has been a pleasure to assist you with these inquiries.

Best regards,

Andrew G.

Intel Customer Support Technician