Overall performance is not that competitive. The Corsair RM850x (2021) is 4% ahead, and the RM850 2.8%.
Noise Rating
The graph below depicts the cooling fan's average noise output throughout the entire operating range of the PSU, with an ambient temperature between
30 °C and 32 °C.
Average noise output is close to the RM850x, but should be lower than 25 dBA since be quiet! has made itself a name for silent products.
Efficiency Rating
The graph below shows the PSU's average efficiency throughout its operating range, with an ambient temperature between
30 °C and 32 °C.
Average efficiency is quite high.
5VSB Efficiency Rating
The graph below shows the PSU's average efficiency at 5VSB, with an ambient temperature between
30 °C and 32 °C.
The 5VSB rail's average efficiency is high.
PF Rating
The graph below shows the PSU's average PF throughout its operating range, with an ambient temperature between
30 °C and 32 °C.
The APFC converter's performance is low.