Comparison of Colorful GeForce GTX 1660 Ti 6G-V video card vs Gainward GeForce RTX 3070 Phantom GS video card by specifications and benchmarks. Colorful GeForce GTX 1660 Ti 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Phantom GS runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 270 W+ 23 %. Compare the table of benchmark results to find out which graphic card is better.