Question

What is the most powerful gpu or known as the graphics card in the world?

Answer 1

Although it's too early in the year to know what the best one is and there are many, in 2015 the most powerful GPUs were the EVGA GeForce Titan X, the Zotac GeForce GTX 980Ti and the Gigabyte Radeon R9 Fury X.

Answer 2

Well two years later the most powerful gpu is supposedly the RTX Titan.