About WillMyGPURunIt
WillMyGPURunIt is a free tool that tells you, in plain English, what your PC can actually do — for gaming and for running AI on your own hardware.
What It Does
Enter your CPU, GPU and RAM once and WillMyGPURunIt gives you a gaming score and a local-AI score, flags any bottleneck between your processor and graphics card, sizes the power supply that build needs, checks the parts for compatibility, lists the popular games it can run smoothly, and — the part we care most about — shows exactly which local AI models your GPU can run, with an estimate of how fast they will generate text. You can also compare two builds side by side.
Why It Exists
Running large language models on your own machine has gone from a niche hobby to something a lot of people want to try — for privacy, cost, or curiosity. But the single question that decides what you can run, "how much VRAM do I have and what fits in it?", is buried under jargon. WillMyGPURunIt answers it directly, and the Local AI Guides explain the concepts behind it without assuming you already know them.
How the Numbers Are Produced
The estimates are grounded in published data, not guesswork. Gaming scores are driven by standardised GPU benchmarks (PassMark G3D) on a curve, adjusted for CPU strength and system memory. Local-AI capability is derived from each GPU's VRAM and memory bandwidth: VRAM sets which model sizes fit, and bandwidth drives the tokens-per-second estimate, using the same memory-bound math that governs real inference speed. Power-supply sizing adds up each part's draw, accounts for transient GPU spikes, and never recommends below the GPU maker's own minimum.
The full reasoning is shown in the methodology notes on each result, and the hardware data set is reviewed against live benchmark sources. Even so, every figure is an estimate — see our terms and disclaimer.
Independent and Free
WillMyGPURunIt is an independent project and is not affiliated with, sponsored by, or endorsed by any hardware manufacturer. It is free to use and supported by advertising, which lets the tools and guides stay open to everyone. If you spot an error in the data, we want to hear about it — the contact page is the place.