Comparison of ZOTAC GAMING GeForce GTX 1660 Twin Fan video card vs ZOTAC GAMING GeForce RTX 2070 AMP video card by specifications and benchmarks. ZOTAC GAMING GeForce GTX 1660 Twin Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce RTX 2070 AMP runs at 1.410 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 185 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.