Comparison of ZOTAC GeForce GTX 1080 IceStorm 2X video card vs PowerColor Radeon RX 6500 XT ITX 4GB video card by specifications and benchmarks. ZOTAC GeForce GTX 1080 IceStorm 2X runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card PowerColor Radeon RX 6500 XT ITX 4GB runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 230 W+ 28 %, and the second is 107 W. Compare the table of benchmark results to find out which graphic card is better.