Earlier quoted context omitted.
Not the Intel Xeon W-3245 which is from 2019. https://ark.intel.com/content/www/us/en/ark/products/193753/...
Yes, but the author is pretty intellectually dishonest when he says that his new MBP beat out a "somewhat old" xeon. That's a ten year old CPU.
If your old Haswell / Skylake machines still work (and if you don't need Windows 11 which doesn't support them), there's zero technical reason to upgrade to something newer, at least on the desktop.
There's been some progress in terms of power efficiency on laptops, but even there 5+ year old chips are pretty much as good as it gets if you want to stick to Intel. Maybe 10-15% percent slower than the very latest stuff, you won't even notice it. That's why Apple is currently obliterating Intel and AMD - the latter milked their cash cow until it fell over.
And Apple knew that they didn't even need to work particularly hard on core perf - memory bandwidth improvements alone would have delivered the goods. That's another thing people don't get - the CPUs spend quite a bit of their time waiting for bytes to come in or go out. The latencies involved in that are upwards of 200 cycles, and any significant improvement in both the latency and the bandwidth has insane, immediately noticeable benefits for perf, particularly in "modern" languages with poor cache locality. Why Intel / AMD duopoly did so little to address this deficiency is inexplicable, but here we are.