Comparison of XFX Speedster SWFT 319 Radeon RX 6900 XT CORE video card vs ZOTAC GeForce GTX 1080 IceStorm 2X video card by specifications and benchmarks. XFX Speedster SWFT 319 Radeon RX 6900 XT CORE 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.