Product comparison · 2 internal hard drives

HP 250GB 7200RPM HDD f/ EliteBook 8440p vs Lenovo ThinkStation 450GB SAS HDD

5specifications compared
4differ
1identical
11known for one product only

Key differences

The Lenovo ThinkStation 450GB SAS HDD has 200 GB more HDD capacity than the HP 250GB 7200RPM HDD f/ EliteBook 8440p (450 GB vs 250 GB). The Lenovo ThinkStation 450GB SAS HDD has 7,800 RPM more HDD speed than the HP 250GB 7200RPM HDD f/ EliteBook 8440p (15000 RPM vs 7200 RPM). Interface: Serial ATA on the HP 250GB 7200RPM HDD f/ EliteBook 8440p, SAS on the Lenovo ThinkStation 450GB SAS HDD. Component for: Laptop on the HP 250GB 7200RPM HDD f/ EliteBook 8440p, Server/workstation on the Lenovo ThinkStation 450GB SAS HDD.

HDD capacity
- 250GB 7200RPM HDD f/ EliteBook 8440p:250 GB
- ThinkStation 450GB SAS HDD:450 GB
HDD speed
- 250GB 7200RPM HDD f/ EliteBook 8440p:7200 RPM
- ThinkStation 450GB SAS HDD:15000 RPM
Interface
- 250GB 7200RPM HDD f/ EliteBook 8440p:Serial ATA
- ThinkStation 450GB SAS HDD:SAS
Component for
- 250GB 7200RPM HDD f/ EliteBook 8440p:Laptop
- ThinkStation 450GB SAS HDD:Server/workstation

Side by side

Differences highlightedShow differences only

Comparison of 250GB 7200RPM HDD f/ EliteBook 8440p, ThinkStation 450GB SAS HDD
16 specifications	A HP 250GB 7200RPM HDD f/ EliteBook 8440p View product	B Lenovo ThinkStation 450GB SAS HDD View product
Features4 differ
HDD capacityDiffers	250 GB	450 GB
HDD speedDiffers	7200 RPM	15000 RPM
InterfaceDiffers	Serial ATA	SAS
Component forDiffers	Laptop	Server/workstation
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
Read seek timeKnown for one	Unknown — not stated by the source	3.5 ms
Average latencyKnown for one	Unknown — not stated by the source	2 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	4 in
DepthKnown for one	Unknown — not stated by the source	5.8 in
HeightKnown for one	Unknown — not stated by the source	1 in
Other featuresidentical
HDD transfer rateKnown for one	Unknown — not stated by the source	300 Mbit/s
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 7
Internal	Yes	Yes
Mac compatibilityKnown for one	Unknown — not stated by the source	No
Compatible productsKnown for one	EliteBook 8440p	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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