Comparison of GIGABYTE Radeon RX 580 Gaming 8G MI video card vs NVIDIA GeForce RTX 3080 Founders Edition video card by specifications and benchmarks. GIGABYTE Radeon RX 580 Gaming 8G MI runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card NVIDIA GeForce RTX 3080 Founders Edition runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 185 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.