Product comparison · 2 internal hard drives

Acer SATA-250GB/8MB 7.2 RPM vs Lenovo 40GB HDD ATA 100

5specifications compared
4differ
1identical
3known for one product only

Key differences

The Acer SATA-250GB/8MB 7.2 RPM has 210 GB more HDD capacity than the Lenovo 40GB HDD ATA 100 (250 GB vs 40 GB). The Acer SATA-250GB/8MB 7.2 RPM has 1,800 RPM more HDD speed than the Lenovo 40GB HDD ATA 100 (7200 RPM vs 5400 RPM). The Acer SATA-250GB/8MB 7.2 RPM has 6 MB more storage drive buffer size than the Lenovo 40GB HDD ATA 100 (8 MB vs 2 MB). Interface: Serial ATA on the Acer SATA-250GB/8MB 7.2 RPM, Ultra-ATA/100 on the Lenovo 40GB HDD ATA 100.

HDD capacity
- SATA-250GB/8MB 7.2 RPM:250 GB
- 40GB HDD ATA 100:40 GB
HDD speed
- SATA-250GB/8MB 7.2 RPM:7200 RPM
- 40GB HDD ATA 100:5400 RPM
Interface
- SATA-250GB/8MB 7.2 RPM:Serial ATA
- 40GB HDD ATA 100:Ultra-ATA/100
Storage drive buffer size
- SATA-250GB/8MB 7.2 RPM:8 MB
- 40GB HDD ATA 100:2 MB

Side by side

Differences highlightedShow differences only

Comparison of SATA-250GB/8MB 7.2 RPM, 40GB HDD ATA 100
8 specifications	A Acer SATA-250GB/8MB 7.2 RPM View product	B Lenovo 40GB HDD ATA 100 View product
Features4 differ
HDD capacityDiffers	250 GB	40 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Storage drive buffer sizeDiffers	8 MB	2 MB
Access timeKnown for one	Unknown — not stated by the source	17.6 ms
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
Other featuresidentical
Internal	Yes	Yes
HDD transfer rateKnown for one	150 Mbit/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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