CPU, GPU and Battery Tests
Stress test your processor and graphics card, check WebGL and WebGPU support, and look at memory and battery health.
Tests
CPU Stress Test
Load every core, catch calculation errors and see whether your processor throttles.
GPU Stress Test
Load your graphics card with a heavy 3D scene and catch throttling, artifacts and driver resets.
Laptop Battery Test
Measure your battery's real drain rate and work out its health from the Windows battery report.
WebGL Test
See if WebGL 1 and 2 work, which graphics card draws them, and how to fix WebGL errors.
RAM Test
Run a write and verify memory test in your browser, measure RAM speed and learn to run MemTest86.
WebGPU Test
Check if WebGPU works, read your adapter's features and limits, and benchmark compute speed.
Processor and graphics
The cpu stress test loads every core of your processor, watches for slowdowns from heat and checks every result for calculation errors. The gpu stress test runs a heavy 3D scene and graphs the frame rate so throttling and stutter show up. The webgl test and webgpu test report what your browser and graphics driver support.
Memory and battery
The ram test shows how much memory the browser can use and checks it with a write and verify pattern, then explains how to run a full memory test. The laptop battery test reads charge and discharge rates and works out battery health from the capacity numbers in your battery report.
Heat problems
A browser cannot read temperatures, so the cpu temperature and gpu temperature guides explain the normal ranges and the free tools that show them. For a laptop that runs hot, see laptop overheating.