System is running at high CPU usage due to specific reasons.
System is running at high CPU usage due to specific reasons.
It seems your CPU is consistently using a lot of power even when idle. When you open browsers or apps, it jumps to high usage, sometimes reaching 95%. This behavior differs from your other machine, which stays around 40-50% under load. Could there be something specific about your setup or software that’s causing this?
Windows 11 uses a lot of CPU power, but that still feels odd to me. To put it in perspective, my 10700 is running at about 5-10% usage while I’m typing this with only a few browser tabs and Teams open. A 9700K shouldn’t be that much worse off even without HT. Take a look at the processes that consume the most CPU as @Kilrah recommended, and consider a malware scan if manual checks don’t reveal anything clear.
It looks like your 3900x is running at around 1% usage in Windows 11, which feels unusual. I noticed a virus on my old computer where the CPU would spike to 50% or even 100% when idle. After using antivirus software, it resolved completely and ran smoothly afterward.
Not sure at all, my system with AMD is working fine and it's at 0.8%.
It seems the CPU usage displayed by Task Manager is likely based on approximate percentages rather than exact values. The numbers you mentioned (0%, 1.7%, etc.) may reflect rounded estimates, and the pattern you observed could be coincidental. Checking system load during specific tasks or using more detailed monitoring tools might clarify the cause.