[Help] Blender uses 100% CPU instead of GPU when rendering but Viewpoint uses GPU..so confused

[Shruru (Shawn Niu)]

Hi , I am new to Blender, it’s a great software after all.

I have no idea why Blender keeps using CPU instead of GPU when rendering.
However in Viewpoint Rendered model, it back to normal - Using GPU not CPU.

Here are my screenshots of both, sorry for the Chinese interface of task managements. but I think it’s not big issue.

( you can see the CPU keeps 98-100% )

(while in Viewpoint rendered view, it looks normal and “correct” )

Any ideas or settings I did wrong or missed? please advise . Thanks in advance! Sorry for my english.

i7 9900KF / RTX 3080 Ti / Win 10 / Blender 3.0.1

BTW* a quick question that somehow Blender seems never saves / remember the “render panel” settings especially – Every time I open a new file, it back to “eevee” render selected. is it ok?

[Shruru (Shawn Niu)]

well, I figured it out.

You just need to un-check the CPU option in the rendering settings.

Then it back to rendering only by GPU. ( and now it 5 times faster than before here)

I think it’s quite confusion to users when check both means “using both cpu and gpu” however it turns to only render CPU, the priority is strange.

[antoniadamczyk]

hello Shruru
yes this is a bit confusing. For the Render Default you can save it in Blender as Template scene