Comparison of GIGABYTE GeForce GTX 1080 Ti Gaming 11G video card vs Sapphire Radeon RX 6600 video card by specifications and benchmarks. GIGABYTE GeForce GTX 1080 Ti Gaming 11G runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card Sapphire Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 280 W+ 12 %, and the second is 132 W. Compare the table of benchmark results to find out which graphic card is better.