Comparison of Manli GeForce GTX 980 Ti Ultimate video card vs GIGABYTE Radeon RX 6800 Gaming 16G video card by specs and benchmarks. Manli GeForce GTX 980 Ti Ultimate runs at 1.102 GHz+ 10 % base clock speed and has 6 GB of GDDR5 memory, while video card GIGABYTE Radeon RX 6800 Gaming 16G runs at 1.102 GHz+ 10 % base clock speed and has 16 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.