Comparison
HW4 / AI4 vs HW3
Same driver-supervision rules. Different cameras, different computer, different FSD branch. Compute numbers below are community estimates — Tesla does not publish a full consumer spec sheet.
| Hardware | HW3 | HW4 / AI4 |
|---|---|---|
| Official Tesla name | FSD Computer 3.0 | AI4 / Computer 4 |
| Neural processors | 2× | 3× |
| Compute (community) | ~144 TOPS | ~500+ TOPS |
| Process | Samsung 14 nm | Samsung 7 nm |
| Memory | LPDDR4 | LPDDR5 · 16 GB/SoC typical |
| Cameras | 1.2 MP · 1280×960 | 5 MP · ~2880×1620 |
| Front cluster | Wide + main + narrow | High-res pair + dummy |
| Lens tell | Neutral / gray | Red / magenta tint |
| FSD software (2026) | v14 Lite (3 / Y) | Full v14 |
FSD software (2026)
HW4 runs the full v14 neural planner. HW3 Model 3 and Model Y received v14 Lite in a wide release in July 2026. Lite is not a delayed copy of the same build — it is a smaller branch for a smaller computer.
| Capability | HW3 | HW4 |
|---|---|---|
| Navigate on Autopilot | Yes | Yes |
| Auto Lane Change | Yes | Yes |
| Autopark / Summon | Yes | Yes |
| Traffic lights & stop signs | Yes | Yes |
| City streets FSD (Supervised) | Limited | Full |
| Full v14 neural planner | No | Yes |
| v14 Lite branch | Yes | — |
| Low-light HDR vision | Limited | Yes |