Comparison of ZOTAC GeForce GTX 1070 OEM V2 video card vs Colorful GeForce RTX 2060 SI 6G-V video card by specifications and benchmarks. ZOTAC GeForce GTX 1070 OEM V2 runs at 1.506 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Colorful GeForce RTX 2060 SI 6G-V runs at 1.365 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 160 W. Compare the table of benchmark results to find out which graphic card is better.