Comparison of Sapphire Nitro+ Radeon RX 6800 video card vs GIGABYTE GeForce GTX 980 Ti Xtreme OC WaterForce video card by specs and benchmarks. Sapphire Nitro+ Radeon RX 6800 runs at 1.850 GHz+ 9 % base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce GTX 980 Ti Xtreme OC WaterForce runs at 1.850 GHz+ 9 % base clock speed and has 6 GB of GDDR5 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.