Comparison of EVGA GeForce GTX 1660 Ti XC OC video card vs ZOTAC Gaming GeForce RTX 3080 Trinity 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 Trinity 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 320 W. Compare the table of benchmark results to find out which graphic card is better.