Comparison of Gainward GeForce GTX 1070 Ti video card vs ASUS Dual GeForce GTX 1660 TI EVO video card by specifications and benchmarks. Gainward GeForce GTX 1070 Ti runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ASUS Dual GeForce GTX 1660 TI EVO runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.