Comparison of EVGA GeForce GTX 1660 Ti XC OC video card vs Zotac GAMING GeForce RTX 3080 AMP Extreme Holo LHR 12GB video card by specifications and benchmarks. EVGA GeForce GTX 1660 Ti XC OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Zotac GAMING GeForce RTX 3080 AMP Extreme Holo LHR 12GB runs at 1.260 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 390 W+ 11 %. Compare the table of benchmark results to find out which graphic card is better.