Comparison of GIGABYTE Radeon RX 6700 XT GAMING OC 12G video card vs ZOTAC GeForce GTX 1080 OEM video card by specifications and benchmarks. GIGABYTE Radeon RX 6700 XT GAMING OC 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card ZOTAC GeForce GTX 1080 OEM runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 230 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.