Comparison of EVGA GeForce GTX 1660 XC BLACK GAMING video card vs Gainward GeForce RTX 3080 Phantom+ LHR video card by specifications and benchmarks. EVGA GeForce GTX 1660 XC BLACK GAMING runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card Gainward GeForce RTX 3080 Phantom+ LHR runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 340 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.