Product comparison · 2 internal hard drives

Fujitsu 300GB 2.5" 10k SATA III NCQ vs Fujitsu 640GB 2.5" 5.4K SATA II

14specifications compared
4differ
10identical
1known for one product only

Key differences

The Fujitsu 640GB 2.5" 5.4K SATA II has 340 GB more HDD capacity than the Fujitsu 300GB 2.5" 10k SATA III NCQ (640 GB vs 300 GB). The Fujitsu 300GB 2.5" 10k SATA III NCQ has 4,600 RPM more HDD speed than the Fujitsu 640GB 2.5" 5.4K SATA II (10000 RPM vs 5400 RPM). The Fujitsu 300GB 2.5" 10k SATA III NCQ has 3 Gbit/s more data transfer rate than the Fujitsu 640GB 2.5" 5.4K SATA II (6 Gbit/s vs 3 Gbit/s). Interface: Serial ATA III on the Fujitsu 300GB 2.5" 10k SATA III NCQ, Serial ATA II on the Fujitsu 640GB 2.5" 5.4K SATA II.

HDD capacity
- 300GB 2.5" 10k SATA III NCQ:300 GB
- 640GB 2.5" 5.4K SATA II:640 GB
HDD speed
- 300GB 2.5" 10k SATA III NCQ:10000 RPM
- 640GB 2.5" 5.4K SATA II:5400 RPM
Interface
- 300GB 2.5" 10k SATA III NCQ:Serial ATA III
- 640GB 2.5" 5.4K SATA II:Serial ATA II
Data transfer rate
- 300GB 2.5" 10k SATA III NCQ:6 Gbit/s
- 640GB 2.5" 5.4K SATA II:3 Gbit/s

Side by side

Differences highlightedShow differences only

Comparison of 300GB 2.5" 10k SATA III NCQ, 640GB 2.5" 5.4K SATA II
15 specifications	A Fujitsu 300GB 2.5" 10k SATA III NCQ View product	B Fujitsu 640GB 2.5" 5.4K SATA II View product
Features3 differ
HDD capacityDiffers	300 GB	640 GB
HDD speedDiffers	10000 RPM	5400 RPM
InterfaceDiffers	Serial ATA III	Serial ATA II
Native Command Queuing (NCQ)Known for one	Yes	Unknown — not stated by the source
Other features1 differ
Data transfer rateDiffers	6 Gbit/s	3 Gbit/s

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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