App Compatibility and Emulation. What Runs, What Doesn't, and What to Watch Out For
App compatibility is the single biggest practical risk when switching to an ARM laptop. Most everyday productivity software runs fine, but a specific set of apps (32-bit x86 programs, kernel-mode drivers, and certain anti-cheat tools) will not run at all on Windows on ARM (WoA), with no workaround available.
Windows on ARM. Native, Emulated, and Unsupported Apps
Windows on ARM runs three classes of software. ARM64 native apps run at full speed and include Microsoft 365, Chrome, Firefox, Spotify, and the core Adobe Creative Cloud suite as of 2024. x86-64 apps run through Microsoft's Prism emulation layer, which translates instructions at runtime with measurable but often acceptable overhead. A third category, 32-bit x86 apps and kernel-mode drivers compiled for x86, are not supported and will not run, as Microsoft documents explicitly.
The ARM64EC (Emulation Compatible) binary format lets developers ship a single package that runs natively on ARM64 and falls back to emulation where needed. This is increasingly common in major app updates, so the native app library is growing steadily through 2024 and into 2025.
Emulation Overhead. When It's Acceptable and When It Isn't
Prism emulation adds CPU overhead that is generally invisible in web browsing, document editing, and video calls. Independent benchmarks show emulated x86-64 apps on Snapdragon X Elite running at roughly 60-80% of native ARM64 speed, which is fast enough for most office work. The gap rarely surfaces in day-to-day use for these workloads.
Emulation becomes a real problem in three specific scenarios. Latency-sensitive audio production software using ASIO drivers can suffer from buffer underruns because low-level driver access is restricted. Kernel-mode software, including some VPN clients, hardware security dongles, and older enterprise management tools, may refuse to load or fail silently. Always check vendor compatibility lists before committing to a WoA device for professional or enterprise use.
macOS ARM and the Transition That Mostly Worked
Apple's shift to Apple Silicon, starting with the M1 in late 2020, is the most instructive case study in ARM app compatibility. Rosetta 2, Apple's x86-to-ARM translation layer, delivers near-native performance for most translated apps. Apple's developer documentation describes it as a static ahead-of-time translator, which avoids much of the runtime overhead found in dynamic translators like Prism. By 2024, the vast majority of commercial macOS software ships as Universal Binaries, and Rosetta 2 handles the rest with few visible side effects for typical users.
The remaining gaps on macOS ARM are narrow. Some older audio plug-ins, niche scientific tools, and software that installs kernel extensions still require x86 Macs or explicit developer updates. If you depend on a specific tool, confirm its Apple Silicon status at isApplesiliconReady.com before buying.
Linux on ARM. Growing Support, Real Gaps
Linux ARM support has improved significantly with the rise of Qualcomm Snapdragon-based PCs and Apple Silicon. The mainline Linux kernel includes ARM64 support, and major distributions including Ubuntu, Fedora, and Debian offer ARM64 builds. Driver coverage for specific laptop hardware, especially proprietary Wi-Fi chipsets, fingerprint readers, and suspend/resume, remains incomplete on many WoA devices as of early 2025.
Package availability is broader than it was two years ago but still has gaps. Some niche tools and older open-source packages are x86-only in their binary distributions and require self-compilation on ARM64. For developers using Linux on ARM laptops, expect occasional workarounds and check project issue trackers for ARM64-specific bugs before committing to a device for a core workflow.
Hard Compatibility Failures. The Short List
Certain software categories will not work on ARM regardless of emulation. 32-bit x86 applications are not supported on WoA at all, as confirmed in Microsoft's ARM emulation documentation. Kernel-mode drivers compiled for x86, including many hardware security keys, legacy peripheral drivers, and some DRM systems, cannot load on an ARM kernel. Anti-cheat software used in online games, such as Easy Anti-Cheat and BattlEye, has inconsistent ARM support and is often the reason specific game titles fail on WoA even when the game itself could be emulated.
If any item on this list applies to your workflow or gaming library, an x86 laptop is the lower-risk choice. ARM compatibility is improving release by release, but these failure modes are structural, not bugs that a software update will fix in the near term.