Comparison of ASUS Dual GeForce GTX 1660 EVO video card vs GIGABYTE Radeon RX 6500 XT GAMING OC 4G video card by specifications and benchmarks. ASUS Dual GeForce GTX 1660 EVO runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card GIGABYTE Radeon RX 6500 XT GAMING OC 4G runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 107 W. Compare the table of benchmark results to find out which graphic card is better.