Some memory speed benchmarks with a Ryzen 1700 @ 4.0GHz and a 1080 Ti, 2666 Auto vs 3200C14 vs 3466C14 tweaking sub-timings. Timings and settings used in the comments. : r/Amd
GTX 1660 Ti Fortnite Battle Royale benchmark with AMD Ryzen 7 1700 at Ultra Quality: 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
AMD Ryzen 7 1700 Review - Performance - FryRender | CineBench | Google Chrome - Mozilla Kraken