mizogucci :
Ok well I guess temp means less to you than to me. I'd like to know whether the items tested are on a test bench, inside a case and what the temp of the room is. All of this new equipment runs hotter now and if I have a radeon 6990 on a open test bench or inside a case and its 60 degress or 80degrees ambient temp that makes a difference of whether or not that card is going to over heat or not at stock settings! This also determines noise level as hot equipment triggers different fan speeds which is where the noise level comes from.
My equipment sits in the same place all year and the temp of it ranges up to +-15F depending if I have it 65F or 79F Summer/Winter in my house. All of it is stock with no over clocking.
If someone is doing a review say on a GTX590 and a HD 6990 the review could be totally different if the two cards are in a cool room on a open bench or in a hot room inside a case as for example the HD 6990 is quiet when cool and about 20db louder when hot.
I just think a real review cant be made unless at least the all of the large variables are not known and I consider Ambient temp a large variable.
But....your not understanding....it's irrelevent. As long as your temps are in the acceptable range, it doesn't matter what the ambient room temp is.
I live in Florida, and my 5850 runs under 60c under load. My Cousin lives in Minnesota, his runs 50c under load because his home is much cooler than mine. Both of those are acceptable temps, so who cares what the ambient temp is?
Also I would be willing to be that the test lab is kept at a constant temperature via thermostat.
If your reading a benchmark from Tom's Hardware that's comparing the temperature and power draw of 5 different cards, obviously they were all tested in the same room, on the same motherboard, so the ambient temp was the same.