YouTube channel Hardware Busters claims it purchased what looked like an AMD Ryzen 7 9800X3D CPU from Amazon for processor testing purposes. Good for them! Upon opening the box, however, a few things stood out. One, it wasn't the correct socket and heatspreader design for an AM5 chip, and two, an eagle-eyed viewer noticed that the supposedly silkscreened logo on top appeared to be a sticker.
Closer inspection (and a bit of fingernail prying) revealed that underneath the sticker lay an AMD FX 4100, a 14-year-old Bulldozer chip that can be found on the used market for around $10.