We've revised our AM4 motherboard test setup since our last review given that we now recommend the Ryzen 7 1700 by far compared to the other two CPUs for the simple reason it costs less and is overclocking friendly. With a lack of AM4 adaptors in our lab at the moment plus some issues with some of our in-house all-in-one liquid coolers and also concerns on their impact on XFR, especially if they started to fade in terms of performance, we've opted for Noctua's NH-U12S SE-AM4 air cooler, which is more than able to get our test CPU up to 4GHz. We've also dropped PCMark 8's video editing test from our line up and included Handbrake instead as it's more representative of the demands of a multi-threaded video encoding application.
16GB Corsair Vengeance 3,000MHz DDR4 RAM
CPU: AMD Ryzen 7 1700
GPU: XFX Radeon R9 390X DD 8GB
PSU: Corsair RM850i
SSD: Samsung 850Pro (SATA 6Gbps speed tests); Samsung 960 Evo 500GB (M.2 speed tests)
CPU cooler: Noctua NH-U12S SE-AM4
Operating system: Windows 10 64-bit
Thanks to AMD for supplying the CPU, XFX for the graphics card, Corsair for supplying the PSU, memory and CPU cooler, and to Samsung for the SSDs.