Product comparison · 2 optical disc drives

LG GH22NP21 optical disc drive Internal vs LG GT40N optical disc drive Internal DVD±R/RW

26specifications compared
23differ
3identical
14known for one product only

Key differences

Interface
- GH22NP21 optical disc drive Internal:IDE/ATA
- GT40N optical disc drive Internal DVD±R/RW:Serial ATA
CD write speed
- GH22NP21 optical disc drive Internal:48x
- GT40N optical disc drive Internal DVD±R/RW:24x
CD rewrite speed
- GH22NP21 optical disc drive Internal:32x
- GT40N optical disc drive Internal DVD±R/RW:24x
DVD+R Double Layer write speed
- GH22NP21 optical disc drive Internal:16x
- GT40N optical disc drive Internal DVD±R/RW:6x
DVD+R write speed
- GH22NP21 optical disc drive Internal:22x
- GT40N optical disc drive Internal DVD±R/RW:8x
DVD-R Double Layer write speed
- GH22NP21 optical disc drive Internal:12x
- GT40N optical disc drive Internal DVD±R/RW:6x
DVD-R write speed
- GH22NP21 optical disc drive Internal:22x
- GT40N optical disc drive Internal DVD±R/RW:8x
CD read speed
- GH22NP21 optical disc drive Internal:48x
- GT40N optical disc drive Internal DVD±R/RW:24x

Side by side

Differences highlightedShow differences only

Comparison of GH22NP21, GT40N
40 specifications	A LG GH22NP21 optical disc drive Internal Model GH22NP21 View product	B LG GT40N optical disc drive Internal DVD±R/RW Model GT40N View product
Designidentical
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
MountingKnown for one	Horizontal	Unknown — not stated by the source
Performance1 differ
InterfaceDiffers	IDE/ATA	Serial ATA
Drive device, buffer sizeKnown for one	2 MB	Unknown — not stated by the source
DVD-ROM transfer rate (sustained mode)Known for one	22.16 MB/s	Unknown — not stated by the source
Optical drive typeKnown for one	Unknown — not stated by the source	DVD±R/RW
Writing speed6 differ
CD write speedDiffers	48x	24x
CD rewrite speedDiffers	32x	24x
CD-R write speedKnown for one	48x	Unknown — not stated by the source
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
DVD+R Double Layer write speedDiffers	16x	6x
DVD+R write speedDiffers	22x	8x
DVD-R Double Layer write speedDiffers	12x	6x
DVD-R write speedDiffers	22x	8x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	5x
Reading speed11 differ
CD read speedDiffers	48x	24x
CD-R read speedDiffers	48x	24x
CD-ROM read speedDiffers	48x	24x
CD-RW read speedDiffers	10x	24x
DVD+R read speedDiffers	16x	8x
DVD-R Double Layer read speedDiffers	12x	8x
DVD-R read speedDiffers	16x	8x
DVD-RAM read speedDiffers	12x	5x
DVD-RW read speedDiffers	12x	8x
DVD+R Double Layer read speedDiffers	12x	8x
DVD+RW read speedDiffers	12x	8x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	8x
Access time2 differ
DVD drive average random access timeDiffers	140 ms	160 ms
CD-ROM drive average random access timeDiffers	120 ms	140 ms
Weight & dimensions1 differ
WeightDiffers	800 g	162 g
HeightKnown for one	Unknown — not stated by the source	12.7 mm
Other features2 differ
Dimensions (WxDxH)Differs	146 x 165 x 41.3 mm	128 x 127 x 12.7 mm
Compatible operating systemsDiffers	Windows Vista/XP/2000 Pro/ME	Windows 7, Windows VistaTM, Windows XP
Host interfaceKnown for one	E-IDE (ATAPI)	Unknown — not stated by the source
Dimensions (W x D x H) (imperial)Known for one	144.8 x 40.6 x 165.1 mm (5.7 x 1.6 x 6.5")	Unknown — not stated by the source
Sustained data rateKnown for one	7.2 MB/s	Unknown — not stated by the source
Weight (imperial)Known for one	0.798 kg (1.76 lbs)	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.

More optical disc drive comparisons

All optical disc drive comparisons