You should skip Zotac altogether. In my experience (and my father's) Zotac has almoust twice the failure rate of any other (not sure about Sparkle, VTX and that bunch). I would advise to stick to Asus, Gigabyte, MSI, EVGA for GTX cards and Asus, Gigabyte, MSI, XFX, Sapphire for AMD cards.
You should skip Zotac altogether. In my experience (and my father's) Zotac has almoust twice the failure rate of any other (not sure about Sparkle, VTX and that bunch). I would advise to stick to Asus, Gigabyte, MSI, EVGA for GTX cards and Asus, Gigabyte, MSI, XFX, Sapphire for AMD cards.