Comparison of PowerColor Radeon RX Vega 56 Red Devil video card vs Colorful iGame GeForce RTX 3090 Neptune OC-V video card by specifications and benchmarks. PowerColor Radeon RX Vega 56 Red Devil runs at 1.308 GHz+ 13 % base clock speed and has 8 GB of HBM2 memory, while video card Colorful iGame GeForce RTX 3090 Neptune OC-V runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 210 W, and the second is 370 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.