Quote from: LL on June 22, 2022, 04:35:13Interesting exercise which means the number of cores matter.
I came up with a recently discovery that puzzled me concerning temperatures and energy of CPU vs GPU calculations, Maybe notebookcheck can shed a light on it and make an article.
I have lenovo laptop with a 5800H and a RTX3060.
When i push the 5800H to the max which is about 80w power consumption like rendering Blender scene in CPU the fans are at maximum, full blast noise.
When i GPU render in Blender in Optix in RTX3060 it is at max of 125-130w but the fans are not at max and noise is consequential much less.
So the question is : why while more energy being spent in GPU than CPU needs less active cooling?
Heat density. The 5800H has a much smaller die size and will be much harder to cool than a larger die at the same power consumption. Nvidia GA106 die is 276mm2 vs AMD Cezanne die size of 156mm2.