Good mem speed for my CPU

Solution
2 sticks DDR4-3200 that is on the motherboards approved list or from manufacturer that guarantees Ryzen compatible memory kits, Geil's DDR4 Evo Spear or G.Skill's Trident Z, using Samsung chips for best compatibility.

Supahos

Expert
Ambassador
All but a320s support 3000 and I've seen maybe 2 that claim to only go up to 3000 (which I suspect they'll go higher just never bought one). The agesa update to the bioses added speeds above 3k for most boards even if they didn't list it under specs.