Comparison of GIGABYTE GeForce GTX 1080 Ti Gaming OC BLACK 11G video card vs NVIDIA GeForce RTX 2080 Founders Edition video card by specifications and benchmarks. GIGABYTE GeForce GTX 1080 Ti Gaming OC BLACK 11G runs at 1.518 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory, while video card NVIDIA GeForce RTX 2080 Founders Edition runs at 1.515 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 225 W+ 5 %. Compare the table of benchmark results to find out which graphic card is better.