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Jan 30, 2023
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A lot has changed since Zen 1. If you bought the first gen you would be running DDR4 -2666. You would also NOT have PCIe4 (or 5 as found on AM5). Putting a 5800X3D in this would be a waste. You would never be able to get the same experience as you would putting it into a board that came with Zen3 so don't compare what 5800X3D is capable of if you think anyone is going to put one into a first generation AM4 board.

Tons of people are getting new cards as often as every year. A buddy and I bought our 1080s at the same time (on sale for $500 in 2017). Since then he has bought a 2080ti, 3080, 3080ti, 3090, and finally a 4090 last fall. Six cards in five years. The benefits of no spouse or kids. These are the jokers that are keeping GPU prices so high. I'm still running the 1080. He also built new PCs too - he has a 13700 now which replaced 5900X.
Even the 4090 is just barely bottlenecked by even PCIe 2.0 (8% performance loss), let alone PCI3.0 (2-3% loss). On lesser cards the difference between PCI3 and 4 is practically nil, minus a few rare exceptions like the 4 lane gimped 6500xt .
 
Jan 30, 2023
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No it isn't.

Moving from an a 4770K to a 12900K is a 480% performance improvement while going from 1800X to 5800X3D doesn't even double the performance. I know that my 4th gen is old and outdated. Going from the first Zen to the first with 3D cache isn't even close to the improvement as going from 4th to 12th gen on Intel.
The 1800X when released barely beat the then 3 generations older 4770k at gaming loads (which let's face it, is the most important metric for gamers). The 5800X3D on the other hand matches the 12900k at gaming. Single and multicore performance has 'only' doubled, but if productivity is more important the 16 core 5950X would have been quadruple the performance of the first gen 1800X. That is an exceptional gain on the same socket.

On the other hand, LGA1150,1151, 1151v2, 1200 owners (myself included) ended up with un-upgradeable e-waste. Frequent socket changes are just an anti-consumer move and should be called out for. All things equal, why would anyone prefer a socket with shorter support?
 
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On lesser cards the difference between PCI3 and 4 is practically nil, minus a few rare exceptions like the 4 lane gimped 6500xt .
If you dig into the benchmarks people did on the RX 6500XT, it turns out only to suffer bottlenecks when the settings or resolution are cranked up too high for its 4GB memory capacity. As long as it can hold all of the active assets on the card, then performance is barely affected by switching its PCIe speed from 4.0 to 3.0.
 
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