Comparison of ASUS Phoenix Radeon RX 550 4G EVO video card vs GIGABYTE GeForce GTX 1660 SUPER D6 6G video card by specifications and benchmarks. ASUS Phoenix Radeon RX 550 4G EVO runs at 1.100 GHz base clock speed and has 4 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 1660 SUPER D6 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 50 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.