Windows on Arm features
The platform changes that decide what runs — and how well.
mov rax, [rbx+8] → ldr x0, [x19, #8] add rax, rcx → add x0, x0, x1 cmp rax, 10 → cmp x0, #10 call [r10] → blr x10 ret → ret Prism emulation
x86 and x64 apps run unmodified, translated to Arm64 on the fly
Grace CPU · Arm64 NVIDIA RTX Spark
The second Windows on Arm platform ships October 16 — Grace CPU, Blackwell GPU, up to 128 GB
24H2 / 25H2 26H2 Snapdragon X2 · RTX Spark 26H1 Windows 26H1 vs 26H2
Why new Arm PCs sit on a different Windows branch than everyone else
AVX and AVX2 under emulation
Prism now exposes AVX, AVX2, BMI, FMA and F16C to x64 apps
Snapdragon X2 Elite
Up to 18 cores, a 3 nm process and an 80 TOPS NPU
Native Arm64 apps
2,319 titles in our catalog ship a real Arm64 build
- EAC
- BattlEye
- Vanguard
Anti-cheat on Arm
Easy Anti-Cheat and BattlEye have Arm64 clients — enabled game by game
NPU ≥ 40 TOPS On-device AI with the NPU
Copilot+ PCs need a 40+ TOPS neural processor — every Snapdragon X has one
Arm64ECx64Arm64EC
Native Arm64 and x64 code in a single process
Auto Super Resolution
Windows upscales games on the NPU for higher frame rates
Xbox app on Arm
Download and play PC Game Pass titles locally on Arm PCs
runs-on: windows-11-arm ✓ build ✓ test Hosted Arm64 CI
GitHub's windows-11-arm runner builds and tests on real Arm64