Comparison of Colorful iGame GeForce GTX 1080 Ti Vulcan X OC-V video card vs ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition video card by specifications and benchmarks. Colorful iGame GeForce GTX 1080 Ti Vulcan X OC-V runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 250 W, and the second is 320 W+ 28 %. Compare the table of benchmark results to find out which graphic card is better.