Product comparison · 2 internal hard drives

Lenovo 146GB Hot Swap SAS HDD vs Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive

6specifications compared
5differ
1identical
15known for one product only

Key differences

The Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive has 174 GB more HDD capacity than the Lenovo 146GB Hot Swap SAS HDD (320 GB vs 146 GB). The Lenovo 146GB Hot Swap SAS HDD has 7,800 RPM more HDD speed than the Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive (15000 RPM vs 7200 RPM). The Lenovo 146GB Hot Swap SAS HDD has 1" more HDD size than the Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive (3.5" vs 2.5"). Interface: SAS on the Lenovo 146GB Hot Swap SAS HDD, Serial ATA on the Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive. Operating voltage: 5 / 12 V on the Lenovo 146GB Hot Swap SAS HDD, 5 V on the Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive.

HDD capacity
- 146GB Hot Swap SAS HDD:146 GB
- ThinkPad 320GB 7200 rpm Serial ATA Hard Drive:320 GB
HDD speed
- 146GB Hot Swap SAS HDD:15000 RPM
- ThinkPad 320GB 7200 rpm Serial ATA Hard Drive:7200 RPM
HDD size
- 146GB Hot Swap SAS HDD:3.5"
- ThinkPad 320GB 7200 rpm Serial ATA Hard Drive:2.5"
Interface
- 146GB Hot Swap SAS HDD:SAS
- ThinkPad 320GB 7200 rpm Serial ATA Hard Drive:Serial ATA
Operating voltage
- 146GB Hot Swap SAS HDD:5 / 12 V
- ThinkPad 320GB 7200 rpm Serial ATA Hard Drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of 146GB Hot Swap SAS HDD, ThinkPad 320GB 7200 rpm Serial ATA Hard Drive
21 specifications	A Lenovo 146GB Hot Swap SAS HDD View product	B Lenovo ThinkPad 320GB 7200 rpm Serial ATA Hard Drive View product
Features4 differ
HDD capacityDiffers	146 GB	320 GB
HDD speedDiffers	15000 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA
Track to track seek timeKnown for one	Unknown — not stated by the source	10.5 ms
Average latencyKnown for one	Unknown — not stated by the source	4.2 ms
Storage drive buffer sizeKnown for one	8 MB	Unknown — not stated by the source
Access timeKnown for one	6 ms	Unknown — not stated by the source
Average seek timeKnown for one	4 ms	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	10 - 40 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	20 - 80%
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.2 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
Other featuresidentical
HDD transfer rateKnown for one	Unknown — not stated by the source	118.4 Mbit/s
Compatible operating systemsKnown for one	Unknown — not stated by the source	Microsoft Windows Vista / XP
Internal	Yes	Yes
CertificationKnown for one	Unknown — not stated by the source	CE, CSA, UL, TUV, C-Tick, BSMI
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Compatible productsKnown for one	xSeries 260, 206m, 306m, System x3800	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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