Seagate Barracuda 500GB vs Seagate Momentus SATA 320GB

Key differences

The Seagate Barracuda 500GB has 180 GB more HDD capacity than the Seagate Momentus SATA 320GB (500 GB vs 320 GB). The Seagate Barracuda 500GB has 1" more HDD size than the Seagate Momentus SATA 320GB (3.5" vs 2.5"). The Seagate Momentus SATA 320GB has 2.5 ms more read seek time than the Seagate Barracuda 500GB (11 ms vs 8.5 ms). Interface: SAS on the Seagate Barracuda 500GB, Serial ATA on the Seagate Momentus SATA 320GB. Operating voltage: 5 / 12 V on the Seagate Barracuda 500GB, 5 V on the Seagate Momentus SATA 320GB.

• HDD capacity
  • Barracuda 500GB:500 GB
  • Momentus SATA 320GB:320 GB
• HDD size
  • Barracuda 500GB:3.5"
  • Momentus SATA 320GB:2.5"
• Interface
  • Barracuda 500GB:SAS
  • Momentus SATA 320GB:Serial ATA
• Read seek time
  • Barracuda 500GB:8.5 ms
  • Momentus SATA 320GB:11 ms
• Write seek time
  • Barracuda 500GB:9.5 ms
  • Momentus SATA 320GB:13 ms
• Average latency
  • Barracuda 500GB:4.16 ms
  • Momentus SATA 320GB:4.17 ms
• Operating voltage
  • Barracuda 500GB:5 / 12 V
  • Momentus SATA 320GB:5 V
• Width
  • Barracuda 500GB:101.6 mm
  • Momentus SATA 320GB:69.8 mm