VRAMNeeded Calculator

Free tools

All tools run in your browser, need no sign-up, and use the same sourced data as the rest of the site.

  • VRAM calculator: pick a model, precision, context length and GPU, and see whether it fits. Or switch to "I have X GB" to list everything that fits.
  • GPU VRAM lookup: every GPU and Mac we track, its memory, which LLMs fit at 8K context and the cheapest listed rental.
  • VRAM by precision: FP16, FP8, INT8 and INT4 weight sizes for any model or parameter count.
  • Vast.ai vs Runpod cost per hour: the same GPU on both, with dates and sources.
  • What can I run?: work backwards from your card's memory.
  • Cheapest GPU setup finder: which 1 to 8 GPU rental holds your model for the least per hour.
  • Badges: "fits on X GB" badges for model READMEs.

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