Solid State Drives (SSDs)
HDD vs SSD
| Feature | HDD | SSD |
|---|---|---|
| Technology | Magnetic platters | Flash memory (NAND) |
| Moving parts | Yes | No |
| Random read | ~10 ms | ~0.1 ms |
| Sequential | ~150 MB/s | ~500 MB/s (SATA) |
| Durability | Shock sensitive | Shock resistant |
| Cost/GB | Lower | Higher |
| Lifespan | Longer (no write limit) | Limited writes (TBW) |