Comparison of PowerColor Red Devil Radeon RX 6700 XT video card vs EVGA GeForce RTX 2060 SC ULTRA BLACK video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card EVGA GeForce RTX 2060 SC ULTRA BLACK runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 230 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.