Comparison of ASUS AREZ Strix Radeon RX Vega 56 OC Gaming video card vs KFA2 GeForce GTX 1080 EX OC video card by specifications and benchmarks. ASUS AREZ Strix Radeon RX Vega 56 OC Gaming runs at 1.297 GHz+ 12 % base clock speed and has 8 GB of HBM2 memory, while video card KFA2 GeForce GTX 1080 EX OC runs at 1.657 GHz+ 3 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 300 W+ 43 %, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.