ASRock has listed the recommended memory speeds and configurations for AMD’s Ryzen 3000 series processors and X570-based motherboards. The Ryzen 3000 series processors are known to have excellent memory support as compared to their predecessors.
These third-generation chips support DDR4-3200 straight out of the box. Similar to the flagship X570 Taichi motherboard, you can run faster memory if your IMC and motherboard are ready to undertake the effort. AMD has shared recommendations for those who are unafraid of overclocking.
For optimum price-to-performance ratio, the company suggests DDR4-3600 CL16 memory modules for its customers. For top performance, DDR4-3373 is the one for Matisse processors.
For DDR4-3200, there are a few conditions to keep in mind. ASRock recommends you to use two or fewer memory slots if you aim for a speed of DDR4-3200, regardless of whether you use single-rank or double-rank memory kits. The complications occur when you fill all four memory slots with single-rank modules, which causes the memory speeds to drop down to DDR4-2933. And if the four slots are filled with a mixture of single-rank and double-rank modules, the best you can obtain is a DDR4-2667 with a four-DIMM configuration.
Whether to follow ASRock’s recommendation or not is totally up to you, with enthusiasts constantly eluding specifications in search of something better. But if you’re not too keen on messing around, ASRock gives solid advice to follow.