WebGPU Limits and Features

Negotiate WebGPU device limits and optional features correctly so requestDevice never fails on a feature or limit the adapter does not support.

Quick Reference

WebGPU 1.0-stable baseline: Chrome 113+, Safari 26+, Firefox 141+.

GPUAdapter.limits reports what the hardware can do. GPUDevice.limits reports what the device was negotiated for. GPUAdapter.features is a set-like GPUSupportedFeatures object listing the optional features this adapter supports.

Spec-mandated default limits (a real adapter reports values at least this good):