Comparison of Gainward GeForce RTX 3090 Phantom video card vs Colorful iGame GeForce RTX 3080 Ti Advanced OC-V video card by specs and benchmarks. Gainward GeForce RTX 3090 Phantom runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory, while video card Colorful iGame GeForce RTX 3080 Ti Advanced OC-V runs at 1.395 GHz base clock speed and has 12 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 370 W+ 6 %, and the second is 370 W+ 6 % . Compare the benchmark results to find out which video card is better.