AMD’s Ryzen, 5000, CPU, NDA content, and memory overclocking

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Although AMD’s Ryzen 5000 “Zen 3” desktop CPU has been released for a week, we don’t know much about the actual performance of this CPU, because the performance of AMDPPT can only be used as a reference, and the actual application will definitely be greatly reduced. Therefore, the content in the AMDNDA (non-disclosure agreement) and the actual performance after the ban can be lifted can reflect the true performance of the AMD Ryzen 5000 CPU.


But now, according to Technopat, they have mastered an AMD NDA PPT, which shows that Ryzen 5000 CPU can get higher performance through higher specification DDR4 memory.

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AMD NDA content

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Infinity Fabric Clock

Infinity Fabric Clock (FCLK) controls the communication speed of the CPU core between CPU chips and with SOC controllers (such as PCIe, SATA, USB)

The Memory Controller (UCLK) controls the speed at which the memory controller fetches/fetches commands from RAM.

Memory Clock (MCLK) The frequency of the main memory

The above three frequencies are all set in the relationship of: 1, and configured according to the equipped memory speed. For example, if the memory speed is DDR4–3600 MHz, then for FCLK, UCLK and MCLK, these frequencies will be set to 1800 MHz. At present, Renoir desktop APU provides FCLK ratio in terms of memory and memory overclocking support, but standard Ryzen desktop CPU relies on Chiplet design, while Ryzen desktop APU has a monolithic design, and even if the underlying core is basically the same, the chip level will be large. For different.

AMD Ryzen

According to AMD, memory/architecture is the greatest return on investment for users who wish to overclock and adjust. In this regard, AMD recommends that DDR4–4000 MHz is the best choice for all AMD Ryzen 5000 series “Zen 3” desktop CPUs, and DDR4–3800 MHz is the best choice for all AMD Ryzen 3000 series “Zen 2” desktop CPUs . . When running Vermeer CPU, users running DDR4–4000 memory can expect excellent performance and higher overclocking capabilities.

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