Product comparison · 2 optical disc drives

HP 647947-001 optical disc drive Internal vs HP 647948-001 optical disc drive Internal

Key differences

DVD+R Double Layer write speed
- 647947-001 optical disc drive Internal:6x
- 647948-001 optical disc drive Internal:4x
DVD-R Double Layer write speed
- 647947-001 optical disc drive Internal:6x
- 647948-001 optical disc drive Internal:4x
BD-R read speed
- 647947-001 optical disc drive Internal:6x
- 647948-001 optical disc drive Internal:0x
BD-RE read speed
- 647947-001 optical disc drive Internal:2x
- 647948-001 optical disc drive Internal:0x
BD-ROM average random access time
- 647947-001 optical disc drive Internal:205 ms
- 647948-001 optical disc drive Internal:230 ms
CD-ROM drive average random access time
- 647947-001 optical disc drive Internal:165 ms
- 647948-001 optical disc drive Internal:190 ms

Differences highlightedShow differences only

Comparison of 647947-001, 647948-001
22 specifications	A HP 647947-001 optical disc drive Internal Model 647947-001 View product	B HP 647948-001 optical disc drive Internal Model 647948-001 View product
Designidentical
Internal	Yes	Yes
Performance1 differ
Disc types supportedDiffers	BD-R, BD-RE, CD-R, CD-RW, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RAM, DVD-RW	BD-ROM, CD-R, CD-ROM, CD-RW, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RAM, DVD-ROM, DVD-RW
Interface	Serial ATA	Serial ATA
Writing speed2 differ
CD-R write speed	24x	24x
CD-RW write speed	16x	16x
BD-R write speedKnown for one	6x	Unknown — not stated by the source
BD-RE rewrite speedKnown for one	2x	Unknown — not stated by the source
DVD+R Double Layer write speedDiffers	6x	4x
DVD+R write speed	8x	8x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedDiffers	6x	4x
DVD-R write speed	8x	8x
DVD-RAM write speed	5x	5x
DVD-RW write speed	6x	6x
Reading speed2 differ
CD-ROM read speed	24x	24x
BD-R read speedDiffers	6x	0x
BD-RE read speedDiffers	2x	0x
DVD-ROM read speed	8x	8x
BD-ROM read speedKnown for one	Unknown — not stated by the source	6x
Access time2 differ
DVD drive average random access timeKnown for one	185 ms	Unknown — not stated by the source
BD-ROM average random access timeDiffers	205 ms	230 ms
CD-ROM drive average random access timeDiffers	165 ms	190 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.