Comparison of XFX Radeon RX 6800 video card vs NVIDIA GeForce RTX 2080 SUPER Founders Edition video card by specs and benchmarks. XFX Radeon RX 6800 runs at 1.700 GHz base clock speed and has 16 GB of GDDR6 memory, while video card NVIDIA GeForce RTX 2080 SUPER Founders Edition runs at 1.700 GHz base clock speed and has 8 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.