Actually, it doesn't, and that is the real problem. It
specifically does not reflect hardware accurately across all users, as in many cases it defines an IGP in systems over discreet GPU that are installed. It doesn't matter if that favors one brand over the other--it matters because it shows that the survey simply doesn't work. If it is broken in one direction, regardless of direction, it is not a useful metric.
http://forums.steampowered.com/foru...0da5e2ff1c856e49ef277&p=26196972&postcount=10
It doesn't properly distinguish between generations of GPUs
https://www.reddit.com/r/Amd/commen...ies_show_up_in_steam/?st=is3duap6&sh=b61ecd13
https://techreport.com/forums/viewtopic.php?t=117431
Look, it doesn't even properly reflect Linux/Steam's own OS
http://www.pcworld.com/article/3045...hier-than-steams-hardware-survey-implies.html
And, simply enough: Steam doesn't publish the methodology of how their survey works. I work in science, I read research articles all the time. I can tell you that any metrics used for any data in a report, where the methodology is not published and therefore verifiable by other investigators, is not acceptable. This wouldn't even pass approval to go into peer review. It would be rejected flat. So, it's simply an unacceptable method in its current use. About as reliable as
the polygraph.
Look, this data and information has been out there long enough, widely available to the tech community-basically anyone that claims enough interest in these topics to post in these threads--that the unreliability of the steam hardware survey is a simple fact of the industry. It strikes me that anyone that posts in these pages using steam hardware survey data are either intentionally misleading, or guilty of the cardinal sin of any real enthusiasts discipline: failure to inform themselves of openly available, salient information.
To put a finer point on it:
Using the steam hardware survey as a metric for hardware adaptation rates in the PC space is, quite literally, bringing the results of a phrenology exam into a diagnosis of a person's health and personality.