AMD’s Ryzen 7 5800X3D Overclocked to 4.8GHz Using BLCK

AMD’s Ryzen 7 5800X3D is slated to launch next week with an MSRP of $449. Armed with 64MB of 3D stacked V-Cache (L3), it is expected to perform leadership gaming performance on a budget. As per early benchmarks, it is roughly 10% faster than the Ryzen 7 5800X and on par with the Core i9-12900K on average. One of the quirks of the 5800X3D is that it won’t be overclockable as the multiplier will be locked, much like Intel’s non-K CPUs.

According to AMD, the Ryzen 7 5800X3D will have a hard lock on core overclocking which entails a locked multiplier. The reason is the voltage curve. All the other Ryzen 5000 CPUs can run at voltages of up to 1.5-1.6v when overclocked. However, the 3D stacked 5800X3D can’t go past 1.35v. Doing so would break the voltage curve, and damage the chip. As a result, only memory and FCLK overclocking are supported on the X3D.

SKATTERBENCHER has found a way to overclock the 5800X3D, pushing it to 4.8GHz (from this 4.5GHz stock) using the BCLK. He managed to increase the BLCK to 105.99MHz (from 100MHz) on the ASUS ROG Crosshair VIII Extreme motherboard, the same way enthusiasts overclocked Intel’s non-K 12th Gen processors. This means that while the multiplier on the X3D will be locked, you will still be able to mildly overclock it on certain boards.

Areej Syed

Processors, PC gaming, and the past. I have written about computer hardware for over seven years with over 5000 published articles. I started during engineering college and haven't stopped since. On the side, I play RPGs like Baldur's Gate, Dragon Age, Mass Effect, Divinity, and Fallout. Contact: areejs12@hardwaretimes.com.
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