Comparison of Colorful iGame GeForce GTX 1080 Ti Vulcan AD-V video card vs Gainward GeForce RTX 3090 Phantom video card by specifications and benchmarks. Colorful iGame GeForce GTX 1080 Ti Vulcan AD-V runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card Gainward GeForce RTX 3090 Phantom runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 280 W+ 12 %, and the second is 370 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.