● Covered by 1 source · 1 reportLow impact1 neutral
Windows 11 Insider build adds Intel APX setting for future performance gains
Key points
- Windows 11 Insider build 29295 includes an APX setting.
- APX is an Intel extension for future CPU performance gains.
- No APX-capable chips are currently available.
- Intel Nova Lake and Xeon 7 chips are expected to support APX in 2027.
APX Setting Appears in Windows 11 Insider Build
A new setting for "Advanced Performance Extensions (APX)" has been observed in a Windows 11 Insider build (29295), released to Windows Insiders on October 23. This experimental feature is designed to improve application performance on compatible Intel processors once they become available. The discovery was first reported by a user on X and subsequently by Neowin.
Intel's APX Technology Overview
Intel introduced APX in 2023, detailing its inclusion of 16 additional general-purpose registers and three-operand instruction formats. This doubles the number of general-purpose registers from 16 to 32, which Intel states will allow APX-compiled code to execute with 10% fewer loads and 20% fewer stores compared to Intel 64's baseline. Support for APX has been integrated into the GCC compiler since version 14, with preliminary support also available in LLVM and MSVC.
Future Hardware and Software Requirements
Currently, no APX-capable chips are on the market, meaning the new Windows 11 setting has no immediate effect. Developers will need to recompile their applications with specific flags to utilize APX instructions. Intel's Nova Lake Core Ultra 400-series chips are anticipated to be the first consumer processors with APX support, expected in early 2027. Data centers will see APX support with Intel's Xeon 7 'Diamond Rapids' processors, also in 2027.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
A new "Advanced Performance Extensions (APX)" option appeared in a Windows 11 Insider build, enabling future application performance boosts on compatible Intel chips. This feature, announced by Intel in 2023, will improve efficiency by doubling general-purpose registers, but requires recompilation of applications and APX-capable CPUs, which are not yet available.