Comparison of Sapphire Nitro+ Radeon RX 6900 XT SE (Rev 2.0) video card vs ZOTAC GeForce GTX 1080 AMP Edition 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 ZOTAC GeForce GTX 1080 AMP Edition runs at 1.683 GHz+ 5 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 363 W+ 21 %, and the second is 230 W+ 28 %. Compare the table of benchmark results to find out which graphic card is better.