Some time ago I've received a replacement product for my processor which I had on warranty.
My question is: Is there any warranty for that replacement product?
Thank you in advance.
Normally a replacement product under warranty is covered for the remainder of the original warranty. Thus is your CPU had a three year warranty and it was two years old when you sent it in and received a replacement CPU under warranty, the replacement CPU would have one year of warranty to complete the original three year warranty of the original CPU.
You can always contact AMD Tech Support via a support ticket to confirm AMD's official position on warranty replacement products.