Bought an R7 1700X for A$10, turned out to be a R5 5600

I bought a Ryzen 7 1700X for A$10(US$7) a couple weeks ago. It was covered in thermal paste when I got it. I haven’t tested it since.

Motherboard that I ordered online arrived today, I cleaned off the paste and it’s a Ryzen 5 5600 lol