Product comparison · 2 internal hard drives

Seagate EE25 Series 20GB SATA 25pk vs Seagate SV35 Series 500 GB Ultra ATA 100 20pk

15specifications compared
14differ
1identical
12known for one product only

Key differences

The Seagate SV35 Series 500 GB Ultra ATA 100 20pk has 480 GB more HDD capacity than the Seagate EE25 Series 20GB SATA 25pk (500 GB vs 20 GB). The Seagate SV35 Series 500 GB Ultra ATA 100 20pk has 1,800 RPM more HDD speed than the Seagate EE25 Series 20GB SATA 25pk (7200 RPM vs 5400 RPM). The Seagate SV35 Series 500 GB Ultra ATA 100 20pk has 1" more HDD size than the Seagate EE25 Series 20GB SATA 25pk (3.5" vs 2.5"). Interface: Serial ATA on the Seagate EE25 Series 20GB SATA 25pk, Serial ATA II on the Seagate SV35 Series 500 GB Ultra ATA 100 20pk. Operating voltage: 5 V on the Seagate EE25 Series 20GB SATA 25pk, 5 / 12 V on the Seagate SV35 Series 500 GB Ultra ATA 100 20pk.

HDD capacity
- EE25 Series 20GB SATA 25pk:20 GB
- SV35 Series 500 GB Ultra ATA 100 20pk:500 GB
HDD speed
- EE25 Series 20GB SATA 25pk:5400 RPM
- SV35 Series 500 GB Ultra ATA 100 20pk:7200 RPM
HDD size
- EE25 Series 20GB SATA 25pk:2.5"
- SV35 Series 500 GB Ultra ATA 100 20pk:3.5"
Interface
- EE25 Series 20GB SATA 25pk:Serial ATA
- SV35 Series 500 GB Ultra ATA 100 20pk:Serial ATA II
Storage drive buffer size
- EE25 Series 20GB SATA 25pk:8 MB
- SV35 Series 500 GB Ultra ATA 100 20pk:16 MB
Read seek time
- EE25 Series 20GB SATA 25pk:12.5 ms
- SV35 Series 500 GB Ultra ATA 100 20pk:17 ms
Write seek time
- EE25 Series 20GB SATA 25pk:14.5 ms
- SV35 Series 500 GB Ultra ATA 100 20pk:14 ms
Operating voltage
- EE25 Series 20GB SATA 25pk:5 V
- SV35 Series 500 GB Ultra ATA 100 20pk:5 / 12 V

Side by side

Differences highlightedShow differences only

Comparison of EE25 Series 20GB SATA 25pk, SV35 Series 500 GB Ultra ATA 100 20pk
27 specifications	A Seagate EE25 Series 20GB SATA 25pk View product	B Seagate SV35 Series 500 GB Ultra ATA 100 20pk View product
Features7 differ
HDD capacityDiffers	20 GB	500 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	Surveillance system
Storage drive buffer sizeDiffers	8 MB	16 MB
Read seek timeDiffers	12.5 ms	17 ms
Write seek timeDiffers	14.5 ms	14 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Average latencyKnown for one	5.6 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	550000 h	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Operational conditions2 differ
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating shockDiffers	200 G	63 G
Non-operating shockDiffers	800 G	350 G
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.2 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	100 g	690 g
Other featuresidentical
Drive device, transfer rateKnown for one	Unknown — not stated by the source	100 MB/s
Acoustic pressure emissionsKnown for one	2.3 dB	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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