Comparison of PowerColor Radeon RX Vega 56 Nano Edition video card vs ASUS ROG Strix GeForce GTX 1660 TI video card by specifications and benchmarks. PowerColor Radeon RX Vega 56 Nano Edition runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card ASUS ROG Strix GeForce GTX 1660 TI runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 210 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.