To be fair, Blackwell also has a huge advantage over all the other generations in this regard: The much shorter release schedule. It took just over 5 months  (January 30th to July 1st) to release everything from the 5090 down to the 5050, complete with 2 Ti variants and one with 2 VRAM options in between, for a total of 8 different options. And the first big volume card (big volume cards are xx70, xx60Ti and xx60 cards. Maybe xx50, but NVidia doesn't make them always or close to launch, so harder to judge) released just slightly over a month after the 5090 in form of the 5070.

Other generation by contrast took much longer to launch their card and especially their big volume cards or had simply bad timing:

• Ada Lovelace for instance needed 9 month to release all it's cards, and crucially exactly 6 months and 1 day before any big volume GPU released.
• Ampere also needed 9 month to release all it's cards outside the 3050 (which only came almost 2 years after release), though that's mostly due to the late 3070Ti release. The big volume GPUs also released early, with 1, 2.5 and 5 months after the release of the 3080. Ampere however released in the midst of a GPU crunch and was hard to get for a while.
• Turing released quickly, with all the RTX cards within 4 months... but the more budget GTX cards only released afterwards and it took 7 months for them to release - after which the super cards were already coming 9 months after the release of the Gen. So basically everyone was waiting that gen: first for games that use RT and for cheaper options, then for the Super upgraded variants the price hikes over Pascal also certainly didn't help.
• Pascal has a very short release (apart of the 1080Ti and 1030 which both came much later all within 5 months), but the big sellers released just shortly after the launch of the 1080. It helps that smaller GPUs were also still somewhat viable and dirt cheap (1050Ti $139, 1050 $109) and sold reasonably well, too. But it was also th first gen where AMD didn't really have anything to counter and it was a big step up over Maxwell, hence why it sold so fast.

Looks like for once, it's not chinese cybercafes that are overcounted... but Korean ones. I somehow doubt they tripled the amount of gaming PCs there within a months:

It also shows up a bit in the other charts. Intel actually gains a bit against AMD in the CPU battle while NVidia makes a nice jump in the GPU wars, mostly due to an increase of RTX 4060 and 3060/Ti, plus a resurgence of the 4060 Laptop after last month's big drop and a big increase for the 5070.

On the AMD side, it feels a bit like Valve is adding every GPU by hand, since RDNA3 is soaring now as if that one just released, at least the 7800XT and 7600XT do. All the rest had to go down though, some to make space for the overcounting in Korea...

Blackwell reached 6% of the surveyed PCs... but good old Pascal still stays above or a last month.

Looks like the Korean overcounting is over on Steam.

While AMD GPUs are losing a bit of ground again (probably due to not counting correctly most 9070s and 9060s, both should long be part of the charts now - hence why the DX8 GPUs swelling again), their CPUs are catching up fast on Intel, with over 41% under Windows and over 42% market share on Steam when adding Linux to the mix.

By end of the year 8-core CPUs should finally overtake the hexacores, which stand now at 28% while the octacores are at 25% - but the hexacores are losing steam (ha!) fast while the octacores are still a growing force.

Blackwell almost reached 7.5%, still no proper RDNA4 data: 

I really hope Steam can fix it's survey some day concerning AMD GPUs. No 9070XT, no 9060XT, despite both clearly being the main RDNA4 cards. But no, 9070 and 9070GRE it is for Steam. And from the previous Gen the 7900XT and 7600 are still missing, as is the 7600S that I have in my laptop...

Staying power of RTX 30 series is remarkable.

And given AMD's Q3  financial results where they've shared that their Gaming revenue was up 181% year over year to $1.3 billions, it's clear that AMD is selling quite a few more GPU this gen than in previous ones.

Note that this doesn't mean that the market share needs to grow, as Nvidia may also be selling more cards than ever from, for example, 2000 and 3000 series users that saw no appeal in the 4000 series cards, outside the high end. Same goes for AMD users with 5000 and 6000 GPUs.

Considering that Xbox sales were crashing and PS5 sales dropping, AMD must have more than tripled. If not even quadrupled its GPU sales YoY to get to that result. That much of a growth doesn't come without any increase in market share, though I only expect 1-3% gain from this 

Almost 9% of the surveyed Steam PCs now have a Blackwell GPU; Ada + Blackwell almost a third of the surveyed Steam PCs: