Product comparison · 2 internal hard drives

Seagate 200GB 3.5" SATA II vs Seagate 300GB 3.5" Ultra ATA/100

29specifications compared
7differ
22identical
0known for one product only

Key differences

The Seagate 300GB 3.5" Ultra ATA/100 has 100 GB more HDD capacity than the Seagate 200GB 3.5" SATA II (300 GB vs 200 GB). The Seagate 300GB 3.5" Ultra ATA/100 has 8 MB more storage drive buffer size than the Seagate 200GB 3.5" SATA II (16 MB vs 8 MB). The Seagate 300GB 3.5" Ultra ATA/100 has 3 ms more read seek time than the Seagate 200GB 3.5" SATA II (11 ms vs 8 ms). Interface: Serial ATA II on the Seagate 200GB 3.5" SATA II, Ultra-ATA/100 on the Seagate 300GB 3.5" Ultra ATA/100.

HDD capacity
- 200GB 3.5" SATA II:200 GB
- 300GB 3.5" Ultra ATA/100:300 GB
Interface
- 200GB 3.5" SATA II:Serial ATA II
- 300GB 3.5" Ultra ATA/100:Ultra-ATA/100
Storage drive buffer size
- 200GB 3.5" SATA II:8 MB
- 300GB 3.5" Ultra ATA/100:16 MB
Read seek time
- 200GB 3.5" SATA II:8 ms
- 300GB 3.5" Ultra ATA/100:11 ms
Write seek time
- 200GB 3.5" SATA II:9 ms
- 300GB 3.5" Ultra ATA/100:12 ms
Non-operating shock
- 200GB 3.5" SATA II:350 G
- 300GB 3.5" Ultra ATA/100:300 G
Weight
- 200GB 3.5" SATA II:580 g
- 300GB 3.5" Ultra ATA/100:655 g

Side by side

Differences highlightedShow differences only

Comparison of 200GB 3.5" SATA II, 300GB 3.5" Ultra ATA/100
29 specifications	A Seagate 200GB 3.5" SATA II View product	B Seagate 300GB 3.5" Ultra ATA/100 View product
Features5 differ
HDD capacityDiffers	200 GB	300 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA II	Ultra-ATA/100
Type	HDD	HDD
Storage drive buffer sizeDiffers	8 MB	16 MB
HDD number of cylinders	16383	16383
HDD number of heads	16	16
Read seek timeDiffers	8 ms	11 ms
Write seek timeDiffers	9 ms	12 ms
Average latency	4.16 ms	4.16 ms
Start/stop cycles	50000	50000
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Start-up current	2.6 A	2.6 A
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitude	-60.96 - 3048 m	-60.96 - 3048 m
Non-operating altitude	-60.96 - 12192 m	-60.96 - 12192 m
Operating shock	63 G	63 G
Non-operating shockDiffers	350 G	300 G
Weight & dimensions1 differ
Width	101.6 mm	101.6 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
WeightDiffers	580 g	655 g
Other featuresidentical
Drive devices burst data transfer rate (DMA)	2	2
Drive devices burst data transfer rate (PIO)	4	4
Drive devices burst data transfer rate (Ultra DMA)	5	5

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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