KitGuru tried the Nvidia GTX980 Ti
A quote from the article:
Nvidia's Maxwell architecture has dominated the market since last year and today they release their new flagship board - the GTX980 Ti ... slotting in above the GTX980 in the high end. The GTX980ti features 6GB of GDDR5 memory and a list of uprated specifications to bring it closer in line with the super expensive GTX Titan X.Nvidia GTX980 Ti Review @ KitGuru