Comparison of MSI Radeon RX 6900 XT 16G video card vs GIGABYTE AORUS GeForce RTX 2080 8G video card by specifications and benchmarks. MSI Radeon RX 6900 XT 16G runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE AORUS GeForce RTX 2080 8G runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.