From Sandbox to Supercharger: WebAssembly's New Path to GPU Acceleration

Apple Silicon's Unified Memory Architecture eliminates the data-copying overhead that traditionally separates WebAssembly sandboxes from GPU acceleration. By enabling Wasm modules to invoke GPU compute directly on shared physical memory, developers gain near-zero-overhead access to hardware acceleration for inference workloads. This breakthrough is specific to Apple platforms but demonstrates that architectural choices—not fundamental design principles—have historically limited GPU-accelerated WebAssembly performance.