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can UHD Graphics 620 deliver more than 60 Hz, say for ex. 120 Hz?

silviudx
Beginner
1,596 Views

hi team,

 

could you please help out with the answer for the question from the topic title?

 

A similar question was asked & Sebastian answered here, but I`m asking from a bit of a different angle.

community.intel.com/t5/Graphics/%C4%B0ntel-Hd-Graphics-620-120hz/m-p/1242212#M92978

 

the reason I`m asking this again after reading Sebastian's answer from the link above, is, that he was stating:

"1080o @ 120 or 144Hz need a bandwidth of 7.46 Gbps or 8.96 Gbps respectively, so the bandwidth via HDMI is not enough. " he meant here the 1.4 HDMI

 

now my question from a different angle, is: what about the following scenario:

running on a laptop: Lenovo ThinkPad T590 - with UHD Graphics 620, connected then to a: ThinkPad USB-C Dock Gen 2 and then connecting a monitor with say 120Hz capability.

would this work?

 

I'm thinking about the following scenario:

using the USB 3.1 Gen 2 (10 Gbps) cable to connect laptop to ThinkPad USB-C Dock Gen 2 and then from the Docking station to connect through as well a USB 3.1 Gen 2 (10 Gbps) to a monitor that supports 120Hz.

 

by doing so, theoretically can one surpass the problem of the 1.4 HDMI limitation of data transfer mentioned above.

 

thanks in advance for a clarification answer

Silviu

 

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silviudx
Beginner
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hello,

 

thought it would make sense to post my test results:

 

machine used: Lenovo ThinkPad T590 (with UHD Graphics 620)

desired result: connect & deliver higher refresh rate than 60 Hz connecting it with such a monitor at 1920 x 1080 p

 

port limitation of machine: Lenovo ThinkPad T590 (with UHD Graphics 620) --> 1.4 HDMI

 

1st machine : Lenovo ThinkPad T590 (with UHD Graphics 620)

connected through thunderbolt USB-C cable

2nd machine: ThinkPad USB-C Dock Gen 2

connected through HDMI cable from HDMI 2.0 port of the Thinkpad docking station to the HDMI port of the monitor with 144 Hz at 1920 x 1080 p. 

Result: worked fine

 

now I`m trying to find a second monitor with higher refresh rate, to check if it can deliver signal to 2 monitors at higher refresh rates. (eg. 120 Hz or 144 Hz)

 

all the best,

Silviu

 

 

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Andres_Intel
Employee
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Hello silviudx,

  

 

Thank you for posting on the Intel®️ communities. I see that you want to know the resolution supported for your Intel® UHD Graphics 620, I will be happy to help you.  

 

To have a better understanding of the situation, please answer the following questions: 

 

  


Regards,  

 

Andres P. 

Intel Customer Support Technician


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Andres_Intel
Employee
1,490 Views

Hello silviudx,

 


Were you able to check the previous post?  

Let us know if you still need assistance.

 


Best regards,  


Andres P.  

Intel Customer Support Technician


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silviudx
Beginner
1,474 Views
Hi Andres,

Yes, thaelt was the question, but then I later replied in the 2nd post of this topic that I did manage to do so, by using the thunderbolt USB-C port and connecting it to a Thinkpad docking station which has 2.0 HDMI ports and through that connecting it to a monitor and it delivered the 1080p resolution with 144 Hz.

I haven t managed to try it out with 2 monitors (@144 Hz) as I didn t have the necessary hardware at hand.

Anyway, from my point of view, thread can be closed.

All the best,
Silviu
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Andres_Intel
Employee
1,457 Views

Hello silviudx,

 


Thank you for your response.  


Happy to hear that seems the issue is fixed, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.

  


Best regards, 


Andres P.  

Intel Customer Support Technician


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