Comparison of Sapphire Toxic Radeon RX 6900 XT Extreme Edition video card vs GIGABYTE GeForce GTX 1080 Xtreme Gaming Premium Pack 8G video card by specifications and benchmarks. Sapphire Toxic Radeon RX 6900 XT Extreme Edition runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce GTX 1080 Xtreme Gaming Premium Pack 8G runs at 1.759 GHz+ 9 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 430 W+ 43 %, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.