need advice for new graphics card (1660 or rx590)

Hi ! I want to buy a new graphics card for 1080p gaming but I don't know what to choose from which one of the two: Nvidia GeForce GTX 1660 SUPER or XFX AMD Radeon RX 590 FATBOY OC+. My PC specs: Motherboard: Asus Z170-A, Socket LGA 1151 Processor: Intel Core i5-6402P, 2.8 GHz RAM: 16GB DDR4...