Comparison of Sapphire Radeon RX Vega 64 video card vs ASUS ROG Strix GeForce GTX 1080 video card by specifications and benchmarks. Sapphire Radeon RX Vega 64 runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card ASUS ROG Strix GeForce GTX 1080 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 295 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.