Comparison of GALAX GeForce GTX 1080 Ti Founders Edition video card vs Gainward GeForce RTX 2070 Phantom GS video card by specifications and benchmarks. GALAX GeForce GTX 1080 Ti Founders Edition runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card Gainward GeForce RTX 2070 Phantom GS runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 185 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.