GTX 1660 vs RX 580 8GB benchmark test in Red Dead Redemption 2 online tested high-medium mixed settings.

Video card 1: MSI GeForce GTX 1660 VENTUS XS 6G OC
Video card 1: SAPPHIRE NITRO+ RX 580 8GB

● RDR 2 online 1080p resolution 0:00
● RDR 2 online 2k 1440p resolution 3:26
● RDR 2 online 4k 2160p resolution 6:28

PC spec:
CPU: AMD Ryzen 5 3600, Socket AM4
Mainboard: ASRock Fatal1ty B450 Gaming K4, B450, AM4, DDR4
RAM: RAM: 16GB (2x8GB) DDR4 3000MHz (OC 3200MHz), Team Group T-Force Vulcan, 1.35V
SSD: Solid State Drive (SSD) Kingston A400, 240GB, 2.5″, SATA III
HDD: WD Blue 1TB, 7200 64MB, SATA 3
PSU: Corsair CS650M 650W
Case: NZXT H500 Mid Tower Gaming Case – White USB 3.0