Comparison of Sapphire Nitro+ Radeon RX 6900 XT SE video card vs NVIDIA GeForce RTX 3080 Laptop (Mobile) - 115 W video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT SE runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card NVIDIA GeForce RTX 3080 Laptop (Mobile) - 115 W runs at 1.110 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 363 W+ 21 %, and the second is 115 W. Compare the table of benchmark results to find out which graphic card is better.