Comparison of AMD Radeon RX 6800 XT video card vs ZOTAC GeForce GTX 1080 IceStorm 2X video card by specifications and benchmarks. AMD Radeon RX 6800 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card ZOTAC GeForce GTX 1080 IceStorm 2X runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 230 W+ 28 %. Compare the table of benchmark results to find out which graphic card is better.