Comparison of GALAX GeForce GTX 1070 Founders Edition video card vs GIGABYTE GeForce GTX 1660 SUPER GAMING OC 6G video card by specifications and benchmarks. GALAX GeForce GTX 1070 Founders Edition runs at 1.506 GHz base clock speed and has 8 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 1660 SUPER GAMING OC 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 150 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.