Comparison of ZOTAC GeForce GTX 1080 IceStorm 2X video card vs AMD Radeon RX 6600M (Mobile) - 100 W 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 AMD Radeon RX 6600M (Mobile) - 100 W runs at 2.068 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 230 W+ 28 %, and the second is 100 W. Compare the table of benchmark results to find out which graphic card is better.