Graphics
Intel® graphics drivers and software, compatibility, troubleshooting, performance and optimization
18257 Discussions

video core memory width bus

Андрей
Beginner
364 Views

Hi, why is the video core memory width bus equal to 64 bits when I have two sticks of RAM and it should be 128? how can i fix it?

0 Kudos
14 Replies
Alberto_R_Intel
Moderator
331 Views

Андрей, Thank you for posting in the Intel® Communities Support.


In reference to your question, the reason is, as you can confirm in the link below, that the maximum graphics memory on Windows* 10 and Windows* 11 when using Intel® UHD Graphics is limited by the Operating System to one-half of the system memory. So, if you have 128 bits of memory RAM, that means you will have 64 bits of graphics memory:

https://www.intel.com/content/www/us/en/support/articles/000020962/graphics.html


Any questions, please let me know.


Regards,

Albert R.


Intel Customer Support Technician


Андрей
Beginner
317 Views

but I saw people talking about the fact that with the second memory bar they double the bus in the video core and the performance increases, even cpu-z says ...

Андрей
Beginner
323 Views

so

LeonWaksman
Super User
313 Views

Hi @Андрей 

Please download and install the CPU Z application.

Open the memory tab and check if your memory works in Dual Memory Mode. 

 

Leon

 

Андрей
Beginner
293 Views

look. dual memory

Alberto_R_Intel
Moderator
225 Views

Hello Андрей, We will do further research on this matter, as soon as I get any upates, I will post all the details on this thread.


Regards,

Albert R.


Intel Customer Support Technician


Alberto_R_Intel
Moderator
117 Views

Hello Андрей, I Just received an update on this matter.


After reviewing the case, it is important to mention, that the Integrated GPUs don't have dedicated video memory. For iGPUs, the system memory (RAM) is usually split between the CPU and iGPU usually 50% each. So, this case seems not to be related to graphics.

 

On the issue itself, we see that you are using a specific app (CPU-Z/GPU-Z). Maybe this app is not reading the value correctly. Do you have the option to try other apps like HWinfo?


Regards,

Albert R.


Intel Customer Support Technician


Андрей
Beginner
112 Views

Hi
I use HWinfo but there is no information about the memory bus

Alberto_R_Intel
Moderator
101 Views

Андрей, Thank you very much for confirming that information.

 

In that case, we will continue with our research on this matter. For us to be able to do that, could you please provide the model of the processor? I looked for it in the pictures but I did not see it there.

 

Regards,

Albert R.

 

Intel Customer Support Technician

 

LeonWaksman
Super User
87 Views

Hi @Alberto_R_Intel  and @Андрей ,

FYI, I'm attaching images of GPU-Z taken on three NUCS: NUC6i5SYH, NUC7i7DNHE and NUC8i7HVK. On all three, the video BUS width is 128 bit.

 

Leon

 

Андрей
Beginner
34 Views

nice. but in my programm i see only 64 bit..
my processor intel core i5 11400H

Alberto_R_Intel
Moderator
61 Views

Hello Андрей, I just wanted to check if you saw the information posted previously, where we are requesting the model of your processor, and if you need further assistance on this matter?


Regards,

Albert R.


Intel Customer Support Technician


Андрей
Beginner
48 Views

Yes, intel core i5 11400H,

Alberto_R_Intel
Moderator
20 Views

Андрей, Thank you very much for confirming that information.


We will now do further research on this matter. As soon as I get any updates, I will post all the details on this thread.


Regards,

Albert R.


Intel Customer Support Technician


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