Comparison of Colorful iGame GeForce GTX 1080 U-TOP-8G-V video card vs ZOTAC GAMING GeForce RTX 2080 video card by specifications and benchmarks. Colorful iGame GeForce GTX 1080 U-TOP-8G-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card ZOTAC GAMING GeForce RTX 2080 runs at 1.515 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 250 W+ 16 %. Compare the table of benchmark results to find out which graphic card is better.