The 5800X3D is an almost four year old CPU (2022), which was the last major product on its platform (first product in 2016, last new chipset launched in 2020). The successor platform (AM5) was released just months later and is now about 2/3rds or so through its lifecycle.
Normally an old, used CPU for a dead 10yo platform will go for a small fraction the MSRP. Not a multiple. Silicon economy seems in a good shape.
> Normally an old, used CPU for a dead platform will go for a small fraction the MSRP.
True in general- used CPUs from discontinued platforms sell for a small fraction of the original MSRP.
Buuuut, the final flagship part on nearly every platform is an exception to this rule. They are generally sought after as the definitive 'End Game Upgrade' because they provide users with the simplest, most cost-effective performance boost—a single component swap—bypassing the need for a costly migration to a successor platform (which requires new RAM and a new motherboard).
It tends to happen every generation swap, 5800X3D is just the latest.
Best is a bit of an overstatement. It's middle of the pack (performing akin to a 7700, but significantly worse than AMD Zen 5 and the Intel 13th/14th gen). I think the main thing is that it is still plenty capable in 2025 if you're running at a reasonable setting for most games.
Certainly there are situations where it is still among kings like MSFS, but definitely not a leader in most games.
Normally an old, used CPU for a dead 10yo platform will go for a small fraction the MSRP. Not a multiple. Silicon economy seems in a good shape.