Seagate 1 TB, 2.5", SATA 6Gb/s vs Seagate 120GB HDD

The short verdict

Scores pending

We haven’t scored these yet. Use the measured differences and full specs below.

1 TB, 2.5", SATA 6Gb/s

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120GB HDD

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Choose the 1 TB, 2.5", SATA 6Gb/s if

Lighter in the hand (190 vs 580 g)

Full specs →

120GB HDD

Full specs →

At a glance

Key differences

Measured differences only. Ties and tiny gaps are left out.

Why pick the1 TB, 2.5", SATA 6Gb/s1 win

−390 gLighter in the hand190 vs 580 g

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Why pick the120GB HDD0 wins

No measured advantages in our spec data. Check the full specs below.

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Full specs

Side-by-side specifications

Performance1 difference

Storage drive buffer size

128 MB

8 MB

Battery & charging1 difference

Operating voltage

5 V

5 / 12 V

Design4 differences

Weight

190 g

580 g

Depth

100.5 mm

147 mm

Height

15 mm

26.1 mm

Width

70.1 mm

101.6 mm

General10 differences

Average latency

4.16 ms

Bytes per sector

4096

512

Capacity

1 TB

120 GB

HDD capacity

1 TB

120 GB

HDD size

2.5"

3.5"

Interface

Serial ATA III

Serial ATA II

Manufacturer Sku

ST1000NX0303-40PK

ST3120813AS

Non-operating shock

400 G

350 G

Non-operating vibration

3 G

5 G

Operating shock

25 G

63 G

Operating temperature (T-T)

5 - 55 °C

0 - 60 °C

Where to buy

Specs verified against manufacturer data. Prices in USD before tax; we may earn a commission from qualifying purchases.

Community

Which would you buy?

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1 TB, 2.5", SATA 6Gb/s vs 120GB HDD

Scores pending

Key differences

Side-by-side specifications

Which would you buy?