Hello, I want to upgrade my GPU from a 550 Ti to a 1050 Ti or a 1060 and I found a sweet deal with a 1060 6 GB being 30% down the price of a new one. I can go check the card but there is no pc there that I can plug and bench the card. What else can I do to see if the card is the right model as he says, how to check if it has been used for mining/etc?