GPU vs CPU

General questions about Indigo, the scene format, rendering etc...
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contegufo
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GPU vs CPU

Post by contegufo » Thu Sep 03, 2015 5:43 am

HI

To what extent is the advantage of a percentage rendering GPU than CPU usage?
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Zom-B
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Re: GPU vs CPU

Post by Zom-B » Thu Sep 03, 2015 10:32 am

Quite old values, but at least some numbers for you: http://www.indigorenderer.com/content/i ... -rendering
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ViRiX_Dreamcore
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Re: GPU vs CPU

Post by ViRiX_Dreamcore » Tue Oct 20, 2015 4:37 am

I just did a test yesterday based on 30 seconds of rendering time.

This is really rough as I just used a small scene I threw together.

Specs, Intel 4790K 4.0 GHz, GTX 980 Ti, 32 gigs of RAM.

Bidirectional MTL on CPU for 30 seconds, 32 samples per pixel
CPU OpenCL 30 seconds: 31 spp
GPU OpenCL 30 Seconds: 70 spp
GPU CUDA 30 seconds: 72 spp

I know that was super crude, but I've tested this on multiple scenes and even though the numbers a re a bit different, GPU does indeed seem to be nearly twice as fast in Open CL or CUDA.

I was using Indigo RT 3.8.23
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