Comparison of GIGABYTE GeForce GTX 1660 MINI ITX OC 6G video card vs MANLI GeForce RTX 2080 Gallardo (M3445+N502-00) video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 MINI ITX OC 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card MANLI GeForce RTX 2080 Gallardo (M3445+N502-00) runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 225 W+ 5 %. Compare the table of benchmark results to find out which graphic card is better.