Comparison of Sapphire Radeon RX Vega 64 video card vs GIGABYTE GeForce RTX 3080 Ti Eagle OC 12G 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 GIGABYTE GeForce RTX 3080 Ti Eagle OC 12G runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 295 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.