I believe they are not international warranty's for graphics cards... I had a look at the asus gtx 770 now on Mwave ( an australian seller) and it says 3 years limited warranty. I think the limited warranty means that the warranty is only honored from the country of purchase. And not for use outside ( or maybe you have to send it back to where it was purchased from). Which is a reason i am not looking to purchase my GPU's from America as if there is a problem the shipping cost in the end could result in a lost. (if there are multiple problems)