Comparison of GIGABYTE Radeon RX 590 Gaming 8G (rev. 1.0) video card vs Sapphire NITRO+ RX 590 8G G5 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 NITRO+ RX 590 8G G5 runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 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.