Comparison of Sapphire Nitro+ Radeon RX 6900 XT SE (Rev 2.0) video card vs AMD Radeon RX 6600M (Mobile) - 100 W video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT SE (Rev 2.0) runs at 1.825 GHz base clock speed and has 16 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 363 W+ 21 %, and the second is 100 W. Compare the table of benchmark results to find out which graphic card is better.