Product comparison · 2 internal hard drives

HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive vs HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive

15specifications compared
12differ
3identical
0known for one product only

Key differences

The HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive has 2,800 RPM more HDD speed than the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive (10000 RPM vs 7200 RPM). The HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive has 1" more HDD size than the HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive (3.5" vs 2.5"). The HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive has 8.8 ms more full stroke seek time than the HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive (16.2 ms vs 7.4 ms). HDD capacity: 4 TB on the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, 900 GB on the HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive. Interface: Serial ATA on the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, SAS on the HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive.

HDD capacity
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:4 TB
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:900 GB
HDD speed
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:7200 RPM
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:10000 RPM
HDD size
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:3.5"
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:2.5"
Interface
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:Serial ATA
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:SAS
Full stroke seek time
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:16.2 ms
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:7.4 ms
Track to track seek time
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:0.8 ms
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:0.21 ms
Average seek time
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:8.5 ms
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:3.8 ms
Operating voltage
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:5 / 12 V
- 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive
15 specifications	A HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive View product	B HP 900GB 6G SAS 10K rpm SFF (2.5-inch) SC Enterprise 3yr Warranty Hard Drive View product
Features7 differ
HDD capacityDiffers	4 TB	900 GB
HDD speedDiffers	7200 RPM	10000 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	SAS
Type	HDD	HDD
HDD interface transfer rate	6 Gbit/s	6 Gbit/s
Full stroke seek timeDiffers	16.2 ms	7.4 ms
Track to track seek timeDiffers	0.8 ms	0.21 ms
Average seek timeDiffers	8.5 ms	3.8 ms
Bytes per sector	512	512
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Weight & dimensions4 differ
WidthDiffers	105.8 mm	75.7 mm
DepthDiffers	17 mm	118.7 mm
HeightDiffers	26.8 mm	15.6 mm
WeightDiffers	1.36 kg	450 g

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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