Comparison of GIGABYTE GeForce RTX 2080 Gaming OC White 8G video card vs AMD Radeon RX 6400 - Reference Data video card by specifications and benchmarks. GIGABYTE GeForce RTX 2080 Gaming OC White 8G runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory, while video card AMD Radeon RX 6400 - Reference Data runs at base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 225 W+ 5 %, and the second is 53 W. Compare the table of benchmark results to find out which graphic card is better.