Comparison of EVGA GeForce RTX 2080 XC ULTRA video card vs AMD Radeon RX 6600M (Mobile) - 100 W video card by specifications and benchmarks. EVGA GeForce RTX 2080 XC ULTRA runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory, while video card AMD Radeon RX 6600M (Mobile) - 100 W runs at 2.068 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 210 W-2 %, and the second is 100 W. Compare the table of benchmark results to find out which graphic card is better.