Ice Lake. First 10nm Xeons from Intel
The Xeon W version of Ice Lake launched in Q3 of 2021. The Puget data excludes servers and laptops, so that's the only Ice Lake that matters. The Sappire Rapids Xeon W didn't launch until Q1 of 2023. Those Xeon W's weren't competitive against Threadrippers - it was mostly people who needed AVX-512 or had to stick with Intel that were buying them.
Their data does include both Core-branded mainstream CPUs and Xeon E. However, the last Xeon E to launch in that timeframe was a Rocket Lake rebadge that launched in Q3 2021, which probably didn't see much demand at a time when Alder Lake was also launching.
So, 2022 sales would probably been propelled by Alder Lake and then Raptor Lake launched in Q4 of 2022.
and first non-Skylake derivative in 7 years.
If you're talking strictly about Xeon, then yes. As I mentioned above, the Xeon E-2300 series was Rocket Lake-based, but that's essentially a 14 nm version of the same microarchitecture as Ice Lake.
What's remarkable is that's all it took for Intel to regain the market share lead.
Are you taking the Puget data to infer overall market share? That would be a mistake.
But, I'm confused that you think Intel's resurgence had anything to do with Ice Lake, because this clearly shows that when restricted just to Threadripper vs. Xeon W, Intel has pretty much stayed bumping along between 10% and 20% the whole time. Pay attention to the legend, because the graph colored Intel red, for some reason.
Note, as well, that Puget's CEO sits on Intel's Technical Advisor Board and (as Stryker pointed out), their data is listing orders rather than unit volume and not limited to just Xeon W & Threadrippers. Their blogs push Intel pretty hard by way of using some benchmarks that significantly benefit from Intel's Quicksync Video acceleration and they also match SKUs by model number rather than price or specs, in order to give an apparent edge to the Intel models. Puget's data cannot be taken as unbiased.
Intel hasn't been competitive in the market for years, and AMD was still some how trailing in market share.
I guess you're looking at their overall orders, but the real turn-around was in the desktop processors, which was isolated in this graph:
That clearly seems triggered by the launch of Alder Lake. Weirdly, the launch of Ryzen 7000 was barely enough to maintain AMD orders until Raptor Lake launched.
Edit: I misread the chart. Though Puget caters to the workstation market, the chart includes mainstream platform sales as well. The spike in Intel sales is definitely from the release of Alder Lake in Q4 2021, though Ice Lake released in Q3 2021 probably helped a little as well. Not surprised by the chart any more. Numbers makes sense.
So, if you look at the Xeon W vs. Threadripper chart, not much happens for Intel until a bump in Q2 2022 and then it quickly drops back down until Sapphire Rapids launches. So, I'd say Ice Lake really didn't seem to do much for Puget's overall Intel order volume.