Comparison of GIGABYTE Radeon RX 6600 XT Gaming OC 8G video card vs Gainward GeForce RTX 2080 Phantom GLH video card by specifications and benchmarks. GIGABYTE Radeon RX 6600 XT Gaming OC 8G runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Gainward GeForce RTX 2080 Phantom GLH runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.