Comparison of PNY GeForce GTX 1080 Ti XLR8 Gaming OC video card vs ASUS TUF Gaming X3 GeForce GTX 1660 SUPER ZAKU II video card by specifications and benchmarks. PNY GeForce GTX 1080 Ti XLR8 Gaming OC runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory, while video card ASUS TUF Gaming X3 GeForce GTX 1660 SUPER ZAKU II runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.