MSI has officially released MSI Afterburner 4.6.6 Final, bringing a long list of notable improvements for gamers and professional users alike. This update expands compatibility with the NVIDIA RTX 50 GPU lineup and adds four-way fan control, along with unofficial support for AMD RDNA 4, including the Radeon RX 9000 series. The new version also ships with skins optimized for Windows 11, an advanced Voltage/Frequency Curve editor, and an upgrade of RivaTuner Statistics Server (RTSS) to version 7.3.7.
A comprehensive, easy-to-use overclocking tool
MSI Afterburner is completely free software that lets users overclock, monitor, and benchmark their graphics cards. Whether you own an Nvidia or AMD GPU, the software supports it, including brands such as Asus, Gigabyte, Zotac, Sapphire, PowerColor, and MSI. Users can track stats like GPU clock speed, memory speed, temperature, voltage, and fan speed in real time, either in-game or from the system tray. Configurations are saved as separate profiles and can be switched quickly with custom hotkeys.
Beyond overclocking, Afterburner also supports undervolting through the Curve Editor, which helps lower temperatures, reduce noise, and save power. Users can turn on the "Apply overclocking at system startup" option to apply their configuration automatically every time Windows boots. In some cases, though, you still need to open the software to make sure the settings run stably.
Standout features
Afterburner comes with a range of features that improve the experience. OC Scanner automatically finds the most stable overclock, delivering extra performance without manual intervention. Users can create their own fan profiles to suit their needs, balancing temperature and performance. The built-in Predator video capture tool also lets you record gameplay in high quality, with support for the H.264 codec and several other formats.
On mobile, MSI Afterburner for Android lets you monitor and overclock your computer remotely by connecting to the MSI Afterburner Remote Server. Setup is simple: just enter an IP address and your phone connects directly to the PC, which is convenient for anyone who likes to manage their system remotely.
What's new in version 4.6.6
This update was recompiled with VC++ 2022, which means Windows XP is no longer supported. To reduce the installation size, MSI offers a separate web installer for the new runtime. It saves storage space but can lengthen installation time if you have no internet connection.
The list of upgrades includes:
- Full support for NVIDIA GeForce RTX 50xx with four-way fan control.
- Unofficial support for AMD RDNA 4 and the Radeon RX 9000 series.
- A new Voltage/Frequency point locking mode in the Curve Editor.
- Support for MP2988 and MP29816A voltage controllers on high-end GPUs.
- An extra +3000MHz of memory overclocking range for the RTX 5000 series.
- The ability to hide unwanted GPUs in the interface.
- New skins (MSI Special, MSI H2O), with the Windows 11 Dark skin set as the default.
- An improved localization system, with a new Bulgarian translation and better German and Ukrainian.
- Fixes for security vulnerabilities in the RTCore driver.
The bundled RTSS v7.3.7 has also been improved with more than 150 changes, including support for NVIDIA Reflex, PresentMon, LibreHardwareMonitor, and several new conditional programming layers, which improve how stats are displayed in games.
With Afterburner 4.6.6, MSI continues to cement its position among GPU optimization tools. From overclocking and fan management to hardware monitoring and in-game video capture, it remains a leading choice for gamers, content creators, and tech enthusiasts who want to get the most performance out of their GPU. The new update not only broadens support for next-generation hardware but also improves the overall experience, adding reliability and convenience in every detail.
