We took note of the drive’s temperature during some of our benchmarking runs. The Solidigm P41 Plus doesn't come with any form of a physical heat sink and Solidigm claim it has been optimised for thermal efficiency and reduced throttling which seems to be confirmed by our test results.
The hottest the drive got was when being pushed extremely hard during repeated runs of the CrystalDiskMark 8 Sequential write tests where the drive got to 54° C, 16° C below the stated maximum of 70° C but there didn't appear to be any throttling issues. For the bulk of our testing, the temperature averaged around 35° C, well below that 70° C maximum operating temperature.
During the dedicated 4K random testing, the drive averaged 26° C. The hottest the drive got under this series of tests was the 38° C seen during the 4K 70/30 read/write mix test at QD's 16-32 using four threads.