Yes — and here's exactly how. Every GPU has a PCI Hardware Device ID (DevID) burned into the silicon at manufacture. This is a hardware constant that cannot be changed by flashing a new BIOS.
adapter.info API and cross-references it
against our database of 60+ GPUs. If a modified BIOS is reporting your card as a higher-end
model, the DevID won't match — and we flag it as a BIOS Spoof Risk.This is fundamentally different from benchmark-based detection, which can be fooled. The DevID is a mathematical silicon fingerprint — not data from the BIOS string.
VRAM artifacts are visual glitches — strange dots, horizontal lines, or colour corruption — produced when Video RAM memory chips are failing or overheating. They're a key early warning sign of a dying GPU.
Our GPU Stress Lab runs a 60-second WebGPU compute shader that deliberately stresses VRAM. If
the memory is degraded, the shader output will contain detectable errors. We compare
expected vs. actual results and flag any anomalies as vram_artifacts: true in
the diagnostic output.
Indirectly, yes. Mining GPUs typically show three patterns our test can detect: (1) Degraded VRAM — mining keeps VRAM at 100% load for months which accelerates wear. (2) Thermal throttling at lower temps than expected — VRMs (Voltage Regulator Modules) fail silently after sustained high loads. (3) A suspicious BIOS — miners sometimes reflash BIODs to increase hash rates, leaving a detectable signature mismatch.
Our Pro report's Mining Audit checks all three signals and provides a combined risk score.
Our CPU Lab spawns parallel JavaScript Workers equal to
navigator.hardwareConcurrency — one per logical core. Each Worker runs a tight
instruction loop measuring millions of operations per second. Together we measure:
multi-core throughput (are all cores alive?), thermal
throttling (does performance drop after 30s?), and core count
accuracy (does the reported core count match what's actually firing?).
Every Pro report includes a unique Verification ID — a 7-character
alphanumeric code (e.g. A7F3X9K) printed on the certificate.
To verify: go to gearverify.com/verify/, enter the ID, and you'll instantly see the original test results, timestamp, hardware detected, and whether the certificate has been altered. If the ID isn't found or the hardware details don't match the listing, walk away.
The PDF can be edited in image software — but the Verification ID cannot be faked. The ID is generated server-side at the moment of test completion and tied to the hardware fingerprint. If someone edits the PDF to change the GPU model or score, the verification lookup will return the original unedited data, immediately exposing the fraud.
Pro certificates are stored permanently. The public URL at /verify/[ID] will
always return the original test results. Certificates are date-stamped, so buyers can judge
whether the test is recent enough for their needs. As a guideline, we recommend re-testing
hardware every 6 months for active resale listings.
Yes. GearVerify runs on any browser supporting WebGPU (Chrome 113+, Edge 113+, Safari 18+) or WebGL 2 as a fallback — including Android phones with Chrome and iPads with Safari 18+.
Mobile GPU testing is intentionally lighter — we shorten the stress window and skip some compute shader passes since mobile thermals are more sensitive. The display lab (resolution, refresh rate, HDR detection) runs perfectly on all screen types, including high-DPI OLED panels.
The free scan never sends any data anywhere. All compute happens in your browser using WebGPU and JavaScript Workers. The results are displayed on-screen only and discarded when you close the tab.
For Pro reports, only the test result object (GPU model, score, timestamp, pass/fail verdict) is transmitted to generate the certificate and Verification ID. Your IP address is not stored. No browsing activity or other device data is collected.
Some browsers (especially Firefox and Privacy-hardened Chrome builds) block the WebGPU
adapter.info API from returning raw hardware details as a fingerprinting
prevention measure. In this case, GearVerify automatically falls back to our internal GPU
database: it uses the WebGL UNMASKED_RENDERER string (always available) to
identify your GPU model, then looks up the corresponding DevID from our curated 60+ GPU
registry.
You'll still get an accurate DevID — it just comes from our database rather than directly from the browser API.
The free scan gives you an on-screen verdict — great for personal peace of mind. A Pro report ($4.99) adds: a unique Verification ID, a permanent public URL buyers can check independently, a branded PDF certificate, the Silicon Signature DevID, and a full BIOS / Mining Audit with a risk score. Think of it as the difference between checking your own health vs. getting a doctor's certificate to show someone else.
Yes — our Enterprise plan ($19.99/mo) is designed for exactly this. You get: unlimited bulk reports, white-label PDF certificates with your own logo, API access for integration into your own systems, a CSV batch verification uploader, and a dedicated reseller dashboard to manage all your client certificates.
Contact our sales team to set up a 14-day trial.
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