Comparison of XFX Radeon RX Vega 64 Silver Fan video card vs INNO3D GeForce GTX 1080 Ti Twin X2 video card by specifications and benchmarks. XFX Radeon RX Vega 64 Silver Fan runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card INNO3D GeForce GTX 1080 Ti Twin X2 runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X 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.