If you are trying to identify a processor right now, follow these steps:
What do the (serial) numbers visible on the CPU mean? : r/Amd amd processor serial number lookup tool
AMD processors have two critical identifiers printed on the heat spreader (the metal top of the CPU): If you are trying to identify a processor
Specifically for Xilinx-branded chips, this mobile app uses your camera to scan 2D barcodes to show manufacturing origin and product properties . Checking Warranty Status amd processor serial number lookup tool