Observed arrival · 2026-11-12
A ten-minute honesty test for used GPUs
An open-source CLI stress-tests NVIDIA GPUs and compares their sustained performance with healthy cards of the same model; an optional paid certificate packages the result for a sale listing.
- For
- Used NVIDIA GPU buyers and sellers
- Worth noticing
- The certificate uses a one-time server challenge and Ed25519 signature, while explicitly warning that machine telemetry itself cannot be proven genuine.
Field notes
The check takes an idle baseline, then samples temperature, clocks, power, and throttle reasons during a sustained matrix-multiply run. Uploaded results are described as including telemetry and a salted-hash card identifier, with a delete token provided. For certificates, the site describes a fresh one-time server challenge and online verification; it also warns that someone controlling the machine could fabricate telemetry or rerun the test.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue