Comparison of ZOTAC GeForce GTX 960 video card vs KFA2 GeForce GTX 1660 Prodigy video card by specs and benchmarks. ZOTAC GeForce GTX 960 runs at 1.177 GHz+ 4 % base clock speed and has 2 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1660 Prodigy runs at 1.177 GHz+ 4 % base clock speed and has 6 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 120 W, and the second is 120 W . Compare the benchmark results to find out which video card is better.