There are two or three 'best' depending on what you want to do. Gaming, 1080ti or Titan. A lot of the 3dMark top 100 are Titans. Course, thems are with custom firmware and drivers, so for daily use 1080ti. Unfortunately, there isn't a 50,000$ card you can buy that will perform 2% faster than anything else. It's a supply and demand thing, they make only so many of the top tier that producing a few for a higher tier would be way too costly, unless... There are next gen samples out there, but that's not a price thing, that's a who you know thing, and performance wise, well, the drivers still need work...