Comparison of Gainward GeForce GTX 1080 Phoenix GS video card vs ZOTAC GAMING GeForce RTX 2070 Blower video card by specifications and benchmarks. Gainward GeForce GTX 1080 Phoenix GS runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5X memory, while video card ZOTAC GAMING GeForce RTX 2070 Blower runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 175 W. Compare the table of benchmark results to find out which graphic card is better.