AMD EXPO Ultra Low Latency arrives on X670E motherboards to get the most out of DDR5 memory

  • New beta BIOSes based on AGESA 1.3.0.1b enable ULL support on ASUS and MSI 600 series motherboards.
  • EXPO Ultra Low Latency technology allows for a drastic reduction in DDR5 memory sub-times without increasing the voltage.
  • Performance improvements of up to 4% are expected in games compared to conventional EXPO profiles.
  • The update introduces advanced latency controls such as TccdL for fine-tuning the system.

X670E motherboard with AMD EXPO ULL support

Users who invested in a high-end AM5 platform are in luck, as support for cutting-edge technologies won't be limited to the latest chipsets. It has been confirmed that manufacturers like ASUS and MSI have begun releasing BIOS versions that integrate AMD EXPO Ultra Low Latency (ULL) into their X670E models, which is a relief for those who weren't planning on upgrading their motherboard in the near future.

Although it was initially rumored that this feature would be the main selling point of the new X870 motherboards, the reality is that the technical architecture allows 600-series hardware to take advantage of these memory optimizations. This demonstrates that AMD's commitment to the longevity of the AM5 socket is not just talk, allowing motherboards that have been on the Spanish market for some time to continue performing at their best with Ryzen 7000 and the new Ryzen 9000 processors.

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The arrival of AGESA 1.3.0.1ba for the X670E models

The key to all this technical deployment lies in the new AGESA 1.3.0.1b microcode, which serves as the basis for the updates we're seeing these days. In ASUS's case, it's a beta BIOS version, identified as 3803 , available for well-known product lines such as the ROG Crosshair, the ROG Strix, the ProArt series geared towards creators, and the ever-reliable TUF Gaming. It's not limited to a single model; rather, it aims to cover a broad spectrum of their X670E motherboards.

MSI, for its part, hasn't been left behind and has already released similar firmware, initially focusing on its flagship model, the MEG X670E GODLIKE. As these are beta versions, we may still see some tweaks in the coming weeks, but they already offer access to advanced timing controls such as TccdL, TccdL_WR, and TccdL_WR2, which were previously unavailable to the average user on these platforms.

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What do we really gain from Ultra Low Latency?

Unlike classic overclocking profiles that focus on increasing megahertz at all costs, the EXPO 1.2 standard and its ULL variant focus on tightening the screws on latency. The idea is that a kit that typically runs at DDR5 with CL30 can operate with much more aggressive response times , such as CL26, improving the speed at which the processor accesses data. It's a subtle change on paper, but with a real impact on system fluidity.

According to leaked internal tests, this improvement in sub-timing can translate to an increase of up to 4% in frames per second while gaming, even exceeding 13% when comparing these optimized configurations to the base JEDEC values. However, it's important to note that to fully benefit from this, you'll need compatible memory kits that include these new profiles pre-programmed, as older modules won't automatically update.

Technical optimization for enthusiasts and gamers

It's important to note that, while the benefit is noticeable, not all processors react the same way to these ultra-low latencies. While standard chips like the Ryzen 7 9700X greatly benefit from this fine-tuning, the impact is usually more limited in models with 3D V-Cache technology because their large cache memory already mitigates much of the latency of conventional RAM. Even so, having these tools in the BIOS allows hardware enthusiasts in Europe to experiment with their systems until they find the sweet spot of stability.

Implementing these new parameters within menus like ASUS's Ai Tweaker makes it easy to automatically adjust values ​​with just a few clicks—values ​​that previously required hours of manual testing. This democratizes memory overclocking , allowing even someone who doesn't want the hassle to get a performance boost simply by selecting the appropriate profile on their X670E motherboard after updating the firmware.

This commitment to keeping older motherboards up-to-date significantly extends the lifespan of current systems and ensures the AM5 ecosystem remains competitive against other market alternatives. The ability to get the most out of the latest DDR5 kits on components we already own is excellent news for any computer enthusiast looking to maximize their investment without having to buy new ones, confirming that software support is just as vital as the hardware we install in our PC cases.

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