Comparison of Sapphire Pulse Radeon RX Vega 56 video card vs GALAX GeForce RTX 3090 SG (1-Click OC) video card by specifications and benchmarks. Sapphire Pulse Radeon RX Vega 56 runs at 1.208 GHz+ 4 % base clock speed and has 8 GB of HBM2 memory, while video card GALAX GeForce RTX 3090 SG (1-Click OC) 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+ 33 %, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.