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Is there an "Iris Plus Graphics 655" with only 47 EUs?

H-Takeda
New Contributor I
574 Views

Hi, I'm mainly enjoying running AI on NUC8i3BEH !
But then one day I realized.
Fewer GPU execution units (EU) are recognized in the App.

The SoC of NUC8i3BEH is i3-8109U.
The internal GPU of the i3-8109U is "Iris Plus Graphics 655".
Many documents found on Intel show the "Iris Plus Graphics 655" as being 48EU.

For example, the API of C for Metal displays 1 EU less.
(The Iris Plus Graphics 655 has 7 hardware threads in 1EU.
Thus, if there are 48 EUs, it should be "HW thread count : 336".)

Iris Plus Graphics 655
GT3
HW thread count: 329
GPU min frequency: 0 MHz
GPU max frequency: 0 MHz
Threads per group: 49

Is this a software problem?
However, several people have said that the Iris Plus Graphics 655 is 47EU.
https://en.wikichip.org/wiki/intel/core_i3/i3-8109u 
https://www.tomshw.it/hardware/intel-prepara-bean-canyon-nuc-con-gpu-iris-plus-graphics 

The above problem also appears on the i3-9100.
(The i3-9100 shows it as 23EU).

Is there an "Iris Plus Graphics 655" with only 47 EUs?
If you have a model that reduces the EU by one, why is that?

0 Kudos
6 Replies
Sebastian_M_Intel
Moderator
553 Views

Hello H-Takeda, 

 

Thank you for posting on the Intel® communities.   

 

Please let us review this inquiry internally, once we have an update we will share it through this thread. 

 

Kindly wait for a response.  

 

Regards, 

 

Sebastian M  

Intel Customer Support Technician  


H-Takeda
New Contributor I
510 Views

Have you made any progress since then?
I'm curious.

Sebastian_M_Intel
Moderator
502 Views

Hello H-Takeda,  

 

Thank you for waiting. 

 

After checking, this seems to be a software issue. Is there a way that you can test with a different reporting application? Perhabs CPU-Z or similar? 

 

Additionally, please provide the following reports: 

 

1. Run the Intel® System Support Utility (Intel® SSU) and attach the report generated:  

  • Open the application, check the "Everything" box, and click on "Scan" to see the system and device information. By default, Intel® SSU will take you to the "Summary View".   
  • Click on the menu where it says "Summary" to change to "Detailed View".   
  • To save your scan, click on "Next", then "Save".   
  • Use the option under the reply window to attach the report to the thread (Drag and drop here or browse files to attach).  

 

2.DxDiag report:  

 

  • In Windows, select Start and enter dxdiag into the search box on the taskbar. Select dxdiag from the results. 
  • In the tool, select Save All Information for an easily shared format. 

 

Regards,  

  

Sebastian M  

Intel Customer Support Technician   

 

Links to third-party sites and references to third-party trademarks are provided for convenience and illustrative purposes only. Unless explicitly stated, Intel® is not responsible for the contents of such links, and no third-party endorsement of Intel or any of its products is implied.

Sebastian_M_Intel
Moderator
474 Views

Hello H-Takeda,  

 

Were you able to check the previous post and get the information requested? Please let me know if you need more assistance.   

 

Regards,  

  

Sebastian M  

Intel Customer Support Technician  


Sebastian_M_Intel
Moderator
463 Views

Hello H-Takeda,  

  

We have not heard back from you, so we will close this inquiry. If you need further assistance or if you have additional questions, please create a new thread and we will gladly assist you.  

 

Regards,  

  

Sebastian M  

Intel Customer Support Technician  


H-Takeda
New Contributor I
459 Views

Sorry....
It seems that the reply was late.

Questions are now closed, but I'm just going to report.

My PC's OS is Linux (Ubuntu).
I did not know how to use DxDiag in Linux.

> Is there a way that you can test with a different reporting application?
I don't know of any other software that can display the EU as well as the above question.

SSU had a Linux version.
. /ssu.sh -o=All_Information.txt
The output text of this command is attached.

It may not be convincing, but that's all the information I can give you right now.

Translated with www.DeepL.com/Translator (free version)

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