Originally Posted by Brimlock
Then why don't all previous chipsets support Zen 2? Isn't it the same argument? Only certain boards got an updated bios to support 3000 series chips. Why wouldn't the board makers provide updates to all the previous chipsets?
Almost every single older board has been updated to support Zen 2. There are even A320 boards that support the 3950X.
Originally Posted by m4fox90
I have a 3900X and an X370 and I see no problem with this whatsoever. There's no upgrade to anything but the best 1 or 2 4XXX CPUs, and it won't be much, and it certainly won't be worth the cost.
If anything it's nice to know the only real upgrade path I have is one that leads to a total new system, which by the time it's necessary, will be a real and dramatic increase in performance at a given price point, including DDR5 and PCIe 5 (hopefully, but PCIe 4 for sure). AMD did right by X370 purchasers.
You seem to be assuming that Zen 3 is just going to be a 3-5% incremental improvement over Zen 2, like how Zen+ was to Zen. If that's the case, then it's no big deal and for most people the upgrade wouldn't be worth it over Zen 2. But what if Zen 3 is 25% more performant? That is a substantial performance increase and definitely worth it to Zen, Zen+ and probably even Zen 2 users.
You seem to be operating under the assumption that everyone is with Zen 2 is running a 3900X or 3950X (hence your "it'd only be worth upgrading to the best 1 or 2 4xxx CPUs). There are hundreds of thousands of people running 3600 and 3600x CPUs, in which case a 4xxx 8c part would be a substantial and very viable upgrade path (especially if it offers 25% more performance). With Intel's 10k parts coming way down in price, it's likely the next gen parts will be even cheaper, with the "4950x" probably being closer to the $500-600 mark.
Finally, you're also making the assertion that people who need fast computers must be using them for business (hence the, "If you need the performance, you can just write if off"). That is just blatantly false, and you know it. There's very little actual tangible difference in performance and features of a B450 board compared to an X570. You get an extra nvme slot, PCI-E 4 (on 1 or 2 slots) and slightly better connectivity. For the vast majority of users, none of that matters. More USB 3.0 ports and PCI-E 4.0 slots aren't going to make my H265 encodes go any faster. PCI-E 3.0 x16 won't be a bottleneck for at least another hardware generation cycle. A GTX 2080ti is the first GPU that kinda-sorta pushes the limit of a PCI-E 3.0 x8 slot, let alone an x16.
The notion that AMD is doing users a "favor" by canceling b350, b450, x370 and x470 support for Zen 3 is ridiculous.