Image: AMD

AMD’s Robert Hallock told enthusiasts last month that red team’s first Ryzen chip with 3D V-Cache technology, the Ryzen 7 5800X3D, would not support traditional overclocking and was effectively hard locked from exceeding its published specifications. A YouTuber by the name of SkatterBencher has now seemingly proven Hallock wrong, having published a video on his YouTube channel that demonstrates how the chip can be driven beyond its official maximum boost clock of 4.5 GHz. This can apparently be done through BLCK, a form of overclocking that usually results in an OC of not just the CPU, but every other component on a motherboard, including RAM, PCIe slots, and more. SkatterBencher was able to take AMD’s Ryzen 7 5800X3D maximum boost clock of 4.5 GHz to 4.7 GHz.

AMD’s ‘Non-Overclockable’ Ryzen 7 5800X3D Boosted to 4.74GHz (Tom’s Hardware)

Thanks to voltage offsets and Asus’s specialized Voltage Suspension feature, SkatterBencher was able to override AMD’s maximum voltage output of 1.35v for the 5800X3D, to a maximum voltage of 1.375v.

Voltage Suspension is a unique feature offered by Asus that allows the user to set voltages against specific temperature targets, allowing the CPU to utilize higher voltages at lower temperatures, and pulling back voltage at higher temperatures to preserve the CPU’s health.

In Prime95 testing with small FFTs and AVX enabled, the 5800X3D managed an all-core clock speed of 4.21GHz at 1.176 volts, with peak temperatures running at 93.4C.

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3 comments

  1. To be fair it's already been noted, by GN and others, that it can be overclocked. But the potential for damage to the 3D cache and cores is significantly higher. They had to shave the silicon down on the cores to get the 3D cache to fit under the IHS. It's very much going to be voltage limited. This is why mobo manufacturers are locking those features in the BIOS.
  2. This should be welcome news to many.
    As 'news', absolutely - but with many caveats as @Riccochet mentions above.

    For those planning on using a 5800X3D for work, or even depending on one without being able to replace one at the drop of a hat, overclocking is quite ill-advised.

    It's also not likely to gain much more than bragging rights. A major part of the appeal here is the performance on tap without overclocking!

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