Comparison of KFA2 GeForce GTX 1660 Prodigy video card vs ZOTAC GAMING GeForce RTX 2070 AMP Extreme video card by specifications and benchmarks. KFA2 GeForce GTX 1660 Prodigy runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce RTX 2070 AMP Extreme 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 225 W+ 29 %. Compare the table of benchmark results to find out which graphic card is better.