24 GB GDDR6X
Verify a used NVIDIA GeForce RTX 4090
⚠ Most-counterfeited consumer card: relabeled 4080 dies, reflashed VBIOS, missing-core 'D' boards, and burned 12VHPWR connectors hidden under reflow.
Remote software checks
- ✓ VBIOS SHA-256 vs. reference firmware
- ✓ SM count = 128 under compute probe
- ✓ Software-reported power and thermal telemetry
- ✓ Memory junction under 30-min stress