Comparison of SAPPHIRE Radeon RX 6700 XT video card vs AMD Radeon RX 6600M (Mobile) - 100 W video card by specifications and benchmarks. SAPPHIRE Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 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 230 W, and the second is 100 W. Compare the table of benchmark results to find out which graphic card is better.