Comparison of Biostar Radeon RX Vega 56 8G video card vs Colorful iGame GeForce RTX 3090 Vulcan OC-V video card by specifications and benchmarks. Biostar Radeon RX Vega 56 8G runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card Colorful iGame GeForce RTX 3090 Vulcan 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 390 W+ 11 %. Compare the table of benchmark results to find out which graphic card is better.