Comparison of ZOTAC GAMING GeForce GTX 1660 Ti AMP 6GB GDDR6 video card vs Gainward GeForce RTX 3080 Phantom video card by specifications and benchmarks. ZOTAC GAMING GeForce GTX 1660 Ti AMP 6GB GDDR6 runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce RTX 3080 Phantom runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 130 W+ 8 %, and the second is 340 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.