Product comparison · 2 internal hard drives

Lenovo 250GB Hot-Swap SATAII HDD vs Lenovo 73GB Hot Swap SAS HDD

7specifications compared
4differ
3identical
5known for one product only

Key differences

The Lenovo 250GB Hot-Swap SATAII HDD has 176.6 GB more HDD capacity than the Lenovo 73GB Hot Swap SAS HDD (250 GB vs 73.4 GB). The Lenovo 73GB Hot Swap SAS HDD has 7,800 RPM more HDD speed than the Lenovo 250GB Hot-Swap SATAII HDD (15000 RPM vs 7200 RPM). The Lenovo 250GB Hot-Swap SATAII HDD has 5.5 ms more average seek time than the Lenovo 73GB Hot Swap SAS HDD (9 ms vs 3.5 ms). Interface: Ultra320 SCSI on the Lenovo 250GB Hot-Swap SATAII HDD, SAS on the Lenovo 73GB Hot Swap SAS HDD.

HDD capacity
- 250GB Hot-Swap SATAII HDD:250 GB
- 73GB Hot Swap SAS HDD:73.4 GB
HDD speed
- 250GB Hot-Swap SATAII HDD:7200 RPM
- 73GB Hot Swap SAS HDD:15000 RPM
Interface
- 250GB Hot-Swap SATAII HDD:Ultra320 SCSI
- 73GB Hot Swap SAS HDD:SAS
Average seek time
- 250GB Hot-Swap SATAII HDD:9 ms
- 73GB Hot Swap SAS HDD:3.5 ms

Side by side

Differences highlightedShow differences only

Comparison of 250GB Hot-Swap SATAII HDD, 73GB Hot Swap SAS HDD
12 specifications	A Lenovo 250GB Hot-Swap SATAII HDD View product	B Lenovo 73GB Hot Swap SAS HDD View product
Features4 differ
HDD capacityDiffers	250 GB	73.4 GB
HDD speedDiffers	7200 RPM	15000 RPM
InterfaceDiffers	Ultra320 SCSI	SAS
Average seek timeDiffers	9 ms	3.5 ms
Average latencyKnown for one	4.2 ms	Unknown — not stated by the source
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Access timeKnown for one	Unknown — not stated by the source	5.5 ms
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Sustained data rateKnown for one	29.6 MB/s	Unknown — not stated by the source

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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