Was about to ask if I'm blind, but then Phoronix comments covered most of what I was missing, like zero mentions of idle power consumption AMD CPUs known not to excel at. And then there's the other significant part that a model with more cache wasn't set to the same power limit for a comparison. This way ironically neither the low-power, nor the energy efficient claim is really covered in this review.

I may be behind the times, but I was surprised to see UDIMMs being used here. I didn't even look earlier because of the incredibly silly physical format incompatibility of the DDR5 RDIMM, but then as I see, market segmentation with the price of ECC UDIMM appears to be well and alive.