AMD introduced the Polaris GPU architecture with the introduction of the Radeon RX 400 series in July 2016. They then refined Polaris and launched the Radeon RX 500 series in April 2017. AMD must really like Polaris as here we are in November 2018 and they are bringing the AMD Radeon RX 590 to market with yet another enhanced version of the chip. It looks like this might be the last time that we write about a brand new Polaris GPU coming to market though as it looks like they pulled out all the stops this time around to get every last ounce of performance that can be had from this GPU. The card that we were sent to review is the XFX Radeon RX 590 Fatboy. Read on to see how it performs in 8 game titles and a bunch of synthetic benchmarks!