Merely upper mid-range? After AMD revealed the Polaris Architecture by introducing the AMD Radeon RX 480, this has now been improved again. The AMD Radeon RX 580 is based on the Polaris 20 chip and with 8-GB GDDR5-VRAM, it offers enough leeway for high resolutions. Or does it? You find out in our detailed review, how our Sapphire test model fares.
https://www.notebookcheck.net/Sapphire-Nitro-Radeon-RX-580-Desktop-Graphics-Card-Review.246040.0.html