[mrb]

Check your numbers. In that Blender benchmark, AMD is actually 58% faster (152/96), has 78% more cores (32/18), and its TDP is 52% higher (250/165).¹ https://www.anandtech.com/show/13124/the-amd-threadripper-29...

This means AMD manages to execute more work per watt (more energy efficient), and each AMD core uses less power than Intel.

¹ Anantech wrongly lists the TDP as 140W. It's in fact 165W: https://ark.intel.com/products/126699/Intel-Core-i9-7980XE-E...