Comparison of Sapphire Radeon RX Vega 64 video card vs ASUS ROG Strix GeForce RTX 2080 Ti OC 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 RTX 2080 Ti OC runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.