Seagate Barracuda 500GB vs Seagate Momentus 80GB

Key differences

The Seagate Barracuda 500GB has 420 GB more HDD capacity than the Seagate Momentus 80GB (500 GB vs 80 GB). The Seagate Barracuda 500GB has 1,800 RPM more HDD speed than the Seagate Momentus 80GB (7200 RPM vs 5400 RPM). The Seagate Barracuda 500GB has 1" more HDD size than the Seagate Momentus 80GB (3.5" vs 2.5"). Interface: SAS on the Seagate Barracuda 500GB, Ultra-ATA/100 on the Seagate Momentus 80GB. Operating voltage: 5 / 12 V on the Seagate Barracuda 500GB, 5 V on the Seagate Momentus 80GB.

• HDD capacity
  • Barracuda 500GB:500 GB
  • Momentus 80GB:80 GB
• HDD speed
  • Barracuda 500GB:7200 RPM
  • Momentus 80GB:5400 RPM
• HDD size
  • Barracuda 500GB:3.5"
  • Momentus 80GB:2.5"
• Interface
  • Barracuda 500GB:SAS
  • Momentus 80GB:Ultra-ATA/100
• Storage drive buffer size
  • Barracuda 500GB:16 MB
  • Momentus 80GB:8 MB
• Read seek time
  • Barracuda 500GB:8.5 ms
  • Momentus 80GB:11 ms
• Write seek time
  • Barracuda 500GB:9.5 ms
  • Momentus 80GB:13 ms
• Average latency
  • Barracuda 500GB:4.16 ms
  • Momentus 80GB:5.56 ms