Comparison of EVGA GeForce GTX 980 Ti GAMING ACX 2.0+ video card vs GIGABYTE Radeon RX 6800 Gaming 16G video card by specs and benchmarks. EVGA GeForce GTX 980 Ti GAMING ACX 2.0+ runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card GIGABYTE Radeon RX 6800 Gaming 16G runs at 1.000 GHz 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.