Comparison of ZOTAC GAMING GeForce GTX 1660 Twin Fan video card vs PNY GeForce GTX 960 XLR8 OC 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 PNY GeForce GTX 960 XLR8 OC runs at 1.203 GHz+ 7 % base clock speed and has 4 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.