# interactive GPU Rendering taking long time to start and render

**URL:** <https://forums.chaos.com/t/interactive-gpu-rendering-taking-long-time-to-start-and-render/95761>\
**Category:** Issues\
**Created:** [September 28, 2019, 4:01am UTC](https://forums.chaos.com/t/interactive-gpu-rendering-taking-long-time-to-start-and-render/95761 "2019-09-28T04:01:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![boheme111](https://avatars.discourse-cdn.com/v4/letter/b/ed655f/32.png) [@boheme111](https://forums.chaos.com/u/boheme111)\
**Post date:** [September 28, 2019, 4:01am UTC](https://forums.chaos.com/t/interactive-gpu-rendering-taking-long-time-to-start-and-render/95761/1 "2019-09-28T04:01:11Z")

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Hello,

My scene takes long time to start rendering using interactive GPU. It also takes long time to render and update render when I change things in the scene.

When I hit render I also noticed that the graphics card performance rating only goes up to 10% so it feels like the machine is not really using its potential. I am wondering what is the problem?

My graphics card is Quadro P4000 I am using low res (800 \* 450 ) and turned on Material override I am also using fur on the scene for grass btw. Especially for interactive rendering I need faster feedback.

I was wondering if anyone can advise how I can speed things up? Thank you very much.

Best,

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**Author:** ![ivan.slavchev](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/ivan.slavchev/32/4680_2.png) [@ivan.slavchev](https://forums.chaos.com/u/ivan.slavchev)\
**Post date:** [September 30, 2019, 12:55pm UTC](https://forums.chaos.com/t/interactive-gpu-rendering-taking-long-time-to-start-and-render/95761/2 "2019-09-30T12:55:28Z")

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Can you tell me what’s the NVidia drivers version installed?  
Can you try to stop SketchUP, enable the GPU from “C:\Program Files\Chaos Group\V-Ray\V-Ray for SketchUp\extension\tools\vray\_gpu\_device\_select.ex e”, start SketchUp and try again?  
Can you post the output of  
`set | find "VRAY_GPU_PLATFORMS"`  
in CMD?

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<div class="post-metadata">

**Author:** ![ivan.slavchev](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/ivan.slavchev/32/4680_2.png) [@ivan.slavchev](https://forums.chaos.com/u/ivan.slavchev)\
**Post date:** [October 7, 2019, 1:47pm UTC](https://forums.chaos.com/t/interactive-gpu-rendering-taking-long-time-to-start-and-render/95761/3 "2019-10-07T13:47:00Z")

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You can try MSI Afterburner or GPU Z to check the GPU load and if it gets engaged while rendering.