Comparison of GIGABYTE Radeon RX 590 Gaming 8G (rev. 1.0) video card vs Sapphire Pulse Radeon RX 5700 XT BE 8G video card by specs and benchmarks. GIGABYTE Radeon RX 590 Gaming 8G (rev. 1.0) runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Sapphire Pulse Radeon RX 5700 XT BE 8G runs at 1.469 GHz base clock speed and has 8 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 225 W, and the second is 225 W . Compare the benchmark results to find out which video card is better.