MSI Unveils New Latency Killer Feature for AM5 Motherboards

MSI has introduced a new feature to enhance performance on its AM5 socket motherboards by improving DDR5 memory latency. This comes after some latency issues arose following AMD's AGESA 1.2.0.2a microcode update, which added support for AMD's Ryzen 9000X3D processors. MSI has integrated BIOS tuning to create the "Latency Killer" feature, accessible in the advanced menu section, specifically within the overclocking submenu in BIOS of MSI X870E/X870 gaming motherboards like MEG X870E GODLIKE and MPG X870E CARBON WIFI. Users have three options to choose from: Auto, Enabled, and Disabled. While the default behavior of the Auto setting is not clear, it is believed to be initially disabled for system stability.

Recent benchmark tests conducted by Uniko's Hardware using AIDA64 have shown promising results, with an eight nanosecond improvement in memory latency when the new feature is activated. The test was performed using a Ryzen 7 9800X3D processor paired with an MPG X870E Carbon WiFi motherboard and DDR5-8000 CL38 memory, running in High-Efficiency mode at its maximum preset. Some Reddit users with AMD Ryzen 7 9800X3D on MSI Tomahawk X870 reported seeing a 10-12 ns improvement from enabling the "Latency Killer." MSI motherboards offer additional memory optimization tools in the BIOS, including EXPO / A-XMP profiles, Memory Try It presets, High-Efficiency Mode, and comprehensive manual overclocking options for enthusiasts seeking maximum performance.

However, MSI has cautioned about potential trade-offs with the feature. While the Latency Killer improves memory latency performance, it may impact overall CPU performance. The feature aims to restore memory latency to pre-AGESA 1.2.0.2a levels rather than providing miraculous improvements. This eliminates the need for users to revert to older AGESA BIOS versions. For most users, especially those with X3D-equipped Ryzen processors featuring 96 MB L3 cache, the slight latency differences will be beneficial for regular usage, including gaming. The enhancement is primarily targeted towards enthusiast users and extreme overclockers who prioritize maximum system performance. MSI has confirmed that all MSI AM5 series motherboards will receive this feature, compatible with all Ryzen 9000 series processors.