Artifacts on GPU rendering

[alex_vovk]

Hi there)
Can you help me please?
Why are there artifacts on the image during GPU rendering?
when rendering using CPU everything is clear

Thanks

[oglu]

Is this geo clean? no doubled faces or something like that?

[alex_vovk]

Is this geo clean? no doubled faces or something like that?

yes, absolutely clean

[oglu]

Could you share the scene or the important meshes and lights?

[alex_vovk]

oh - this is a project under the NDA, I can't (

[oglu]

You can share a cylinder and a sphere im sure.

[alex_vovk]

https://www.sendspace.com/file/or009j

I noticed that if turn off VRayLightDome1 the artifacts will disappear
strange ...

[oglu]

I get the same issues but only with RTX turned on. If i restart the render without RTX its fine.

[alex_vovk]

in general rendering with CPU I'm very sad ((
Thank's man