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HEADROOM — how fast is your machine, really?
Measure your GPU's real memory-bandwidth ceiling for local AI in 30 seconds.
Past Editor's Pick
HEADROOM clocks your GPU's memory bandwidth on an honest redline gauge in 30 seconds, no download, no account. It also catches the subgroup driver bug that garbles local LLM output, then gives you a shareable receipt.
ar5en1c.github.io
Try live demo Live checked1 day ago
Try this first: Run the GPU benchmark to measure your system's memory bandwidth.
- Open source
- Yes
Open SourceAnalyticsNo LoginDeveloper ToolGpu BenchmarkGpuBenchmarkLlm“how fast is your machine”“memory-bandwidth ceiling”“local AI”“real memory-bandwidth”
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- Open source
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Headroom – measure your GPU's true bandwidth ceiling for local AI
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