Because it doesn't show wider real world trends? If you're talking just about steam users then the point is valid however Steam isn't anywhere near representative of the much wider, bigger computing world & that includes casual gamers among others.
That's not exactly true. At least not in the world of statistics. Let's say we were looking at Batting Helmets. Let's say the national league tracks head injuries and publishes a database of what Brand players are buying and results might be :
Brand A = 75%
Brand B = 12%
Brand C = 11%
To say that that data in no way represents the totality of professional baseball in the USA, you'd have to show that the factors that affect choice are somehow different between the two leagues. As there is no evidence to support that, the data is statistically valid with respect to GPUs.
Now for CPUs, we can make the argument that there are different choice factors, as business and many home users don't have discrete cards. However no one is suggesting that the Steam CPU data refelects anything but the gaming world so the postulation while valid is out of context. When limited to the gaming world ... and here we mean the folks playing games sold on Steam .... not Solitaire, Minesweeper and things like Yeti Games, there again is no evidence or reasonable argument to suggest that the factors that affect choice are different whether they be buying their games from Steam, Epic, GOG, Walmart or Best Buy. Might as well argue that sales data from 2,000 Macy's stores is not representative of sales of a particular product they both carry because it doesn't include Gimbels sales. Or that we can't depend upon relative sales of 1%, 2% and 4% milk cause it only included 50% of supermarket chains... what would be the argument that King Kullen shoppers prefer different milk than those who bshop at "Stop 'n Shop" ? Polls come away with single digit accuracy with just 2,500 samples.
Now if we go "out of context", and include business and mom / grandpappy's PCs, there are factors that affect choice are different for a this segment of purchasers. If ya want these, use a different data source. But still, these results will be skewed somewhat. For example, data from "who ran our benchmark" will be skewed as only someone who cares how fast the PC is will have bothered to run the benchmark. Grandma who uses her PC only to see pics of the grandkids, certainly didn't. Grandma also isn't here reading this forum.
This forum is an enthusiast PC users forum whose audience is PC Tweakers, Gamers and Power users. Steam is an information resource for gamers. So when reading this forum and a topic about steam users ... keep in mind that context. It's understood that we are not talking about what CPU / GPU grandma is choosing. Grandma didn't even choose. She walked into Walmart witha proce in mind and bought the one that the pimply HS Junior showed her. The guy who bought 12 PCs for the new Real Estate office doesn't even know what CPU he has and doesn't have a GPU. So it's not that this information isn't available ... it's just of little value to those who would bother looking at the Steam Survey or this audience. It's not as if I'm building a high end gaming rig, what CPU my local bakery, lawyer's secretary or grandmother uses. If you are running a racing tem, do you really care about what brand of oil is most popular at Walmert ? (Answer to rhetorical question ... the one that's on sale) ... or are going to look at what brand most racing teams (successful ones) are running with.
Personally I really don't care what brand is selling the most .... how i find the data useful for example is when I see the 2060 with it's 1st appearance in the rankings has more sales than vega 56 & 64 combined after 17 months, I can only conclude a) there must be helluva reason or b) the entire gaiming community is stoopid. If coming in cold out of touch with what's what at this point, I'm not saying that makes my decision, but it wil narrow down what I look at.
That's what I just said....
...the IMC is rated for the platform's base specification, be it 2400/2666/2933. Once over that, the IMC is being overclocked. The memory sticks themselves, however, are only considered overclock if it exceeds the rating on the box.... it really doesn't matter that most memory IC's are cut from 2133/2400. Their 'rated' speeds are on the box.
The box, which will typically advertise XMP speed, is irrelevant. When you look at the SPD data for RAM, each column that says JEDEC at the top is, by definition, not overclocked. If it says XMP (or AMD equivalent) it is 'by definition" overclocked even though it has the XMP speed "on the box"
https://www.intel.com/content/www/us/en/gaming/extreme-memory-profile-xmp.html
For a stick, anything over the highest JEDEC rating is an OC. For the MoBo... just look at the specs, regardles of what it says on the Box, the latest BIOs or spec sheet will tell you what is and what is not OC
https://www.newegg.com/Product/Product.aspx?Item=N82E16813144212
Everything that says OC is an overclock
Memory Standard: DDR4 4400(OC)/ 4300(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3400(OC)/ 3333(OC)/ 3300(OC)/ 3200(OC)/ 3000(OC)/ 2800(OC)/ 2666/ 2400/ 2133
Either way ... unless it's been updated, this is the DDR4 JEDEC timing table.... anything higher than this is "by definition" an overclock. Overclocked does not mean "unsupported". Intel supports and guarantees all XMP overclocks.
https://pics.crucial.com/wcsstore/CrucialSAS/images/campaigns/c3-speed-vs-latency-table.png