Comparison of XFX Radeon RX 580 GTS XXX Edition 4GB video card vs PowerColor Radeon RX 580 Mining 8GB video card by specs and benchmarks. XFX Radeon RX 580 GTS XXX Edition 4GB runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card PowerColor Radeon RX 580 Mining 8GB runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 185 W, and the second is 185 W . Compare the benchmark results to find out which video card is better.