BMW Rendering Times

Blender Courses Talk
1

My time:
CPU: Intel i7 3.5Ghz
GPU: Nvidia GTX 970
OS: Windows 10 64bit
Time: 1:17.52 (GPU - CUDA)
Time: 5:14.17 (CPU)

I seemed to get the best rendering time when I set the Tiles to quarter size of the finished render (so 480 x 270). I tried rendering the whole thing in one shot but it was about 10 seconds slower. Going by the default 128x128 netted me a time of around 1:40.

Very interesting seeing what differences the Tile size makes. I wonder what the mathematical explanation is behind the differences, and if there’s an easy-to-define sweet spot.

2

14core i9 GPU nVidia Titan Pascal 13gb

gpu 47’’
cpu 1.02

Tile Size set to auto…so fast I couldn’t see what the tile size was in time before it finished :wink:

3

GPU: AMD Radeon R9 200 Series
CPU: Intel i5 3.5GHz

GPU time on 16x16 tiles: 04:56
CPU time on 16x16 tiles: 05:05

Contrary to what I expected the GPU times also dropped with the tile size. (tested 512x512, 64x64 and 16x16)