Temperatures
All temperature charts are sorted with lowest load temperatures at the top.
As you can see, the ML204R is a very capable 240mm liquid cooler. It doesn't claim the outright top spot in either of our two charts but it is very close, with the margin being just 0.1C in our stock-clocks test, and 0.6C once we overclocked the CPU.
Noise levels
As for noise, the ML240R is not very loud. It does come second from bottom according to our sound meter, but the gap between the ML240R and our quietest cooler (the Dark Rock 4) is only 6 dBa. The H100x is considerably louder at 56.2 dBa. So while it can't be considered a dead silent liquid cooler, the overall noise levels of the ML240R are still very acceptable.