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

Forza Horizon 4, Battlefield V, Shadow of the Tomb Raider 1x8GB vs. 2x4GB RAM performance comparison. Trident Z RGB DDR4 8GB (1x8GB) 3000MHz CL16. ADATA XPG Z1 DDR4 8GB (2X4GB) 3000MHz CL16. Benchmark rig specs... ● CPU: Intel Core i5-8600K 4.1/, Hexa Core / Coffee Lake ● Cooler: Corsair Hydro Series H55 ● GPU: MSI GeForce GTX 1080 Ti GAMING X 11G ● Motherboard: MSI Z370 GAMING PRO CARBON ● PSU: MODECOM VOLCANO 750W 120mm 80 Plus ● RAM: Trident Z RGB DDR4 8GB (1x8GB) 3000MHz CL16 XMP 2.0 ● RAM: ADATA XPG Z1 8GB (2X4GB) 3000MHz DDR4 CL16 ● SSD: Samsung SSD 960 EVO NVMe M.2 250GB ● System: Microsoft Windows 10 Pro ► Music: Mike Relm - Plex