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Same. Was immediately worried since I bought a 7800x3d for a “too good to be true” price off Aliexpress earlier in the year that works flawlessly and appears to be the real deal.

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Did you benchmark it? Could be an old chip relasered to fool consumer

7800X3D is really easy to verify because you can just check the cache amount. 7800X3D is the cheapest chip that fits into AM5 and has the 96MB L3.

lscpu |grep ^L3

Aliexpress is legit, they'll usually be "tray"/OEM CPUs but there's no reason to assume that they're fake.

> Aliexpress is legit

That's way too positive. Aliexpress is loaded with counterfeit products as well.

There are also plenty of used CPUs of older models, but those tend to be fine since they don't really die unless abused (or are certain Intel 13th and 14th gen models...) and were probably run at stock settings for the few years the server it was in was warrantied for before being sent to recycling (creating tons of unnecessary waste, but good to see people have figured out how to encourage reuse while also profiting from it.)

I've also purchased used pre-Rowhammer RAM from there, and it was perfect too.

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