This is kind of a no-brainer, but those of you who are planning on upgrading to AMD’s Ryzen 5000 Series processors and wish to maximize their performance will definitely want to step up to some faster RAM – DDR-4000 or higher, to be exact. That specification was highlighted in an official slide shared by Technopat, which elaborates on Zen 3’s memory overclocking potential and what type of RAM the CPUs will need to really thrive.
AMD has broken down three important clockspeeds beyond core frequency that enthusiasts should be thinking about. These are Infinity Fabric Clock (fclk), Memory Controller Clock (uclk), and Memory Clock (mclk), all of which are set in a 1:1:1 relationship (e.g., DDR4-3600 = 1,800 MHz fclk/uclk/mclk).
- Infinity Fabric Clock (fclk): governs how quickly CPU cores can communicate across CPU dies and with SoC controller (e.g. PCIe, SATA, USB)
- Memory Controller Clock (uclk): Governs how quickly the memory controller can ingest/exgest commands from RAM
- Memory Clock (mclk): The frequency of your main system memory
“DDR-4000 is to Ryzen 5000 Series as DDR4-3800 was to AMD Ryzen 3000 Series,” AMD wrote. If you’ll remember, the previous generation was optimized for DDR-3200, but red team has clearly taken memory specifications to another level with Zen 3.
AMD’s Ryzen 5000 Series lineup (Ryzen 9 5950X, Ryzen 9 5900X, Ryzen 7 5800X, and Ryzen 5 5600X) will be released on November 5. Weaker SKUs (e.g., Ryzen 5 5600) are rumored to debut early next year.