Comparison of GIGABYTE Radeon RX 6800 Gaming 16G video card vs Colorful iGame GeForce RTX 3090 Neptune OC-V video card by specifications and benchmarks. GIGABYTE Radeon RX 6800 Gaming 16G runs at 1.775 GHz+ 4 % base clock speed and has 16 GB of GDDR6 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 250 W, and the second is 370 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.