Cycles render not using my GPU

[Divine123]

So I’ve been on this thread but it seems like it didn’t come into a conclusion.

Blender Cycles not using GPU even though checked and VRAM is still good

Hi everyone, I’m pretty new here, so I started to follow some tutorials. When the topic of rendering came up and using your GPU to make faster renders, I noticed mine was not being used. For clarity, I’m using blender 2.8 on a laptop with windows 10, a GTX 1050ti with 4 Gbs of VRAM, and intel I5 2.5 GHZ, and 16 Gbs of RAM. I have in my preferences the CPU disable, and GPU checked. In my render setting, I have GPU compute on, and when rendering it shows about 300 mbs of memory being used, and tas…

I’m having the same issue. here is my system.
CPU: Ryzen 3 1200 3.0
GPU: GTX1050ti With latest Cuda Version and driver

It is being detected under system settings under CUDA and its checked. RAM is also not a problem.
infact the GPU like the thread’s issue is not being utilized at all. its always at 5% to 9% usage when rendering under GPU Compute.

Out of suspicion I tried rendering the same scene but cycles render device is set to none and to my surprise its giving me the same reading and result. This gives me a confirmation that the GPU is indeed not being utilized even if the GPU Compute is enabled. I hope you guys can help me with this.

Thanks in advance.

[LazyDodo]

Best to validate the GPU usage with GPU-Z , The windows task manager does not seem like a reliable source for this information for some reason.

[Divine123]

Yes even in GPU-Z its still gives the same readings.

[Divine123]

I tried this and now its working perfectly.

Under Windows 10 Graphics settings, I’ve added blender and set it to High Performance.

Now on task manager it gives me a fluctuating readings of 77% to 80%. on GPU Z its full 100% when rendering.

Render results have been drastically improved as well at 3 times faster. This is the result I’m looking for

[AllenM10]

Drat!
Followed this thread exactly, even updated to Blender 2.92… TM still says I’m only using ~2-4% of my GPU, and 100% of my CPU.
(Yes, I made sure to set 2.92 as the new High Performance program after updating. Still getting the same problem.)
Are there other settings in Blender I might try adjusting? I’ve tried everything I know.

[YAFU (English is not my native language)]

Hi. For CUDA on Windows Task Manager:

Why does Task manager show low GPU usage in Cycles render?

Hello! For checking the cuda activity under windows go to performance tab and select your gpu from the left column and switch any of the charts on the right to cuda by clicking on the name of the charts (is a small drop downv list) Hope it helps. Cheers.