eco tests were done at 23 degrees. No pc runs 23degrees inside. Hardwaresecrets testing were done at real world temps 50 degrees. That's why one shouldn't use ecos testing as a source. Rather use a respected review site.
while I agree jonnyguru and HS tests are more in -depth & tougher then ecos, you are incorrect on the 23c. its the room temperature and most rooms are around 23c
5.6 Test Room
As is specified in IEC 62301, the tests shall be carried out in a room that has an air speed close to
the UUT of £ 0.5 m/s, and the ambient temperature shall be maintained at 23°C ± 5°C
throughout the test. There shall be no intentional cooling of the UUT by use of separately
powered fans, air conditioners, or heat sinks. The UUT shall be tested on a thermally nonconductive
5.7 Warm-up Time
Internal temperature of the components in a power supply could impact the efficiency of the unit.
As a general recommendation before testing, each UUT shall be loaded up to the test load for a
period of at least 15 minutes or for a period sufficient that the total input power reading over two
consecutive five-minute intervals does not change by more than ± 0.2%.