Windows – does the Task Manager say one core but Device Manager shows 8

cpucpu coreswindows 10

On my PC it shows I have 8 cores in Device Manager, but when I go to task manager it shows only 1 logical processor. Can someone fix this for me?

Under the processors tab in Device Manager 8 cores show up showing what I have, then when I open up task manager only one core and 1 logical processor shows up and I cannot change it in the msconfig. I had it at 8 before now I can’t go higher than 1.

Task Manager only shows one logical processor when it used to show 8

Task Manager

Here's the screenshot of the Device Manager.

Device Manager

IDK what I did or what happened, but I went from an average of 700 fps to 15

Best Answer

First, it's probably not actually not 8 cores but 4 cores 8 threads, unless you're using some CPUs without Hyperthreading. You can see the number of cores and threads in the performance tab of Task Manager. The CPU usage in that tab is also a combined value for all the CPUs by default. Just right click > Change graph to > Logical processors

1 core

8 core