Comparison of Colorful iGame GeForce GTX 1080 Vulcan UT V2-V video card vs GALAX GeForce GTX 1660 EX White (1-Click OC) video card by specifications and benchmarks. Colorful iGame GeForce GTX 1080 Vulcan UT V2-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card GALAX GeForce GTX 1660 EX White (1-Click OC) runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 180 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.