Why gpu slower than cpu

[Jin.7787]

Without sss this scene got rendered in 3 minutes, and in Progressive Image Sampler it got rendered in 10 minutes with sss, but I have installed nightlies build version, it is taking the same render time in old version.

[Jin.7787]

Progressive Image Sampler is fast, but I have a doubt whether all the frames in the animation will appear the same in Progressive Image Sampler. Because in our case we have always used bucket render in animation.

[Muhammed_Hamed]

Progressive is consistent in animations, it is the recommended way of using V-Ray GPU
Plus, I'm glad you are getting the same render time as me. If it renders any slower with any build let us know, we will take a look

[Jin.7787]

Ok, I'll try and thank you. But I think it is a bit slower than other GPU render engines. I hope it becomes faster in the future

thank you for help and clear doubt

[Muhammed_Hamed]

We have some performance improvements coming up for V-Ray GPU, I hope to share more details about this soon
Whenever I have time, I will convert this setup to Redshift to compare the performance. I will update the thread with my results soon

Best,
Muhammed