Product comparison · 2 optical disc drives

HP 456798-001 optical disc drive Internal DVD Super Multi DL vs HP 647946-001 optical disc drive Internal DVD±R/RW

Key differences

Optical drive type
- 456798-001 optical disc drive Internal DVD Super Multi DL:DVD Super Multi DL
- 647946-001 optical disc drive Internal DVD±R/RW:DVD±R/RW
Interface
- 456798-001 optical disc drive Internal DVD Super Multi DL:EIDE/ATAPI
- 647946-001 optical disc drive Internal DVD±R/RW:Serial ATA
CD rewrite speed
- 456798-001 optical disc drive Internal DVD Super Multi DL:16x
- 647946-001 optical disc drive Internal DVD±R/RW:24x
DVD+RW write speed
- 456798-001 optical disc drive Internal DVD Super Multi DL:4x
- 647946-001 optical disc drive Internal DVD±R/RW:8x
DVD-RW write speed
- 456798-001 optical disc drive Internal DVD Super Multi DL:4x
- 647946-001 optical disc drive Internal DVD±R/RW:6x

Differences highlightedShow differences only

Comparison of 456798-001, 647946-001
20 specifications	A HP 456798-001 optical disc drive Internal DVD Super Multi DL Model 456798-001 View product	B HP 647946-001 optical disc drive Internal DVD±R/RW Model 647946-001 View product
Designidentical
Internal	Yes	Yes
Performance3 differ
Optical drive typeDiffers	DVD Super Multi DL	DVD±R/RW
InterfaceDiffers	EIDE/ATAPI	Serial ATA
LightScribeKnown for one	Unknown — not stated by the source	Yes
Compatible productsDiffers	Compaq 6520s, Compaq 6720s, Compaq 6820s	ProBook 4330s, ProBook 4331s, ProBook 4430s, ProBook 4431s
PurposeKnown for one	Laptop	Unknown — not stated by the source
Writing speed3 differ
CD write speed	24x	24x
CD rewrite speedDiffers	16x	24x
DVD+R Double Layer write speedKnown for one	Unknown — not stated by the source	6x
DVD+R write speed	8x	8x
DVD+RW write speedDiffers	4x	8x
DVD-R Double Layer write speedKnown for one	Unknown — not stated by the source	6x
DVD-R write speed	8x	8x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	5x
DVD-RW write speedDiffers	4x	6x
CD-RW write speedKnown for one	5x	Unknown — not stated by the source
Reading speedidentical
CD read speed	24x	24x
DVD-ROM read speed	8x	8x
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	160 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	140 ms

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.