Comparison of KFA2 GeForce GTX 960 Reference Design OC video card vs ZOTAC GeForce GTX 1060 AMP! Edition 3GB video card by specifications and benchmarks. KFA2 GeForce GTX 960 Reference Design OC runs at 1.152 GHz+ 2 % base clock speed and has 4 GB of GDDR5 memory, while video card ZOTAC GeForce GTX 1060 AMP! Edition 3GB runs at 1.582 GHz+ 5 % base clock speed and has 3 GB of GDDR5 memory. The TDP of the first video card is 120 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.