RDR2 8GB RAM Single Channel vs. Dual Channel | 1x8 or 2x4?

High Textures, Low Graphics, Fxaa, 1080p. ● GPU: PALIT GeForce RTX 2060 GamingPro OC 6GB ● CPU: Intel Core i7-8700K , Hexa Core, 12 Threads / Coffee Lake ● Cooler: Corsair Hydro Series H55 ● Motherboard: MSI Z370 GAMING PRO CARBON ● RAM: Trident Z RGB DDR4 8GB (1x8GB) 3000MHz CL16 XMP 2.0 ● RAM: ADATA XPG Z1 8GB (2X4GB) 3000MHz DDR4 CL16 ● PSU: MODECOM VOLCANO 750W 120mm 80 Plus ● SSD: Samsung SSD 960 EVO NVMe M.2 250GB ● System: Microsoft Windows 10 #2x4GB #8GB #RTX2060