Comparison of Colorful iGame GeForce GTX 1060 U-TOP-3G-V video card vs ZOTAC GAMING GeForce GTX 1660 AMP 6GB GDDR5 video card by specs and benchmarks. Colorful iGame GeForce GTX 1060 U-TOP-3G-V runs at 1.506 GHz base clock speed and has 3 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce GTX 1660 AMP 6GB GDDR5 runs at 1.506 GHz 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.