AMD Ryzen 7 5800X3D reaches 4.74 GHz by modifying the BCLK

The YouTube channel SkatterBencher has managed to overclock the Ryzen 7 5800X3D, a chip that cannot be overclocked using “conventional” methods. A short tutorial has been created on this YouTube channel on how to overclock this processor using the BCLK multiplier.

AMD Ryzen 7 5800X3D: Overclocking @ 4.74 GHz

The Ryzen 7 5800X3D was recently released as an 8-core, 16-thread Zen 3 processor. The unique feature of this chip is the tripling of the Ryzen 7 5800X‘s L3 cache memory to 96 MB using 3D V-Cache technology.

In the video, Skatterbench managed to overclock the 5800X3D to an impressive 4.74 GHz without touching the voltage and multiplier. AMD has blocked the ability to touch the multiplier on this processor, but that doesn’t stop us from boosting frequencies using other methods, like BCLK.

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That’s right, AMD has blocked the core multiplier in addition to Precision Boost Overdrive, so the only way to increase clock speeds is BCLK, although this can cause some problems.

Overclocking the BCLK not only increases processor frequencies, but also those of other components, which could cause stability issues.

The maximum boost clock that the Ryzen 7 5800X3D can reach is 4.5 GHz, so we can get a boost of 240 MHz. That’s not an exceptional boost, but for a chip that isn’t designed for it, it’s something.

SkatterBencher was able to achieve these speeds with a BCLK of 104 MHz on a Crosshair VIII Extreme motherboard from Asus.

Is overclocking the Ryzen 7 5800X3D with this method worth it? We don’t have any performance results in a game or synthetic test with these frequencies, so it’s hard to say for sure. We will keep you updated as we get more information.

However, according to OC3D, AMD is working on implementing some form of overclocking support on the Ryzen 7 5800X3D. The feature will reportedly be available through AMD’s Curve Optimizer, which the company introduced back in 2020 with AGESA patch 1.1.0.0 D. The feature allows for per-core voltage-frequency tuning on AMD chips.

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