Product comparison · 2 optical disc drives

HP 647945-001 optical disc drive Internal vs HP 647948-001 optical disc drive Internal

2specifications compared
1differ
1identical
21known for one product only

Key differences

CD-ROM drive average random access time
- 647945-001 optical disc drive Internal:140 ms
- 647948-001 optical disc drive Internal:190 ms

Side by side

Differences highlightedShow differences only

Comparison of 647945-001, 647948-001
23 specifications	A HP 647945-001 optical disc drive Internal Model 647945-001 View product	B HP 647948-001 optical disc drive Internal Model 647948-001 View product
Designidentical
Internal	Yes	Yes
Performanceidentical
Disc types supportedKnown for one	Unknown — not stated by the source	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
InterfaceKnown for one	Unknown — not stated by the source	Serial ATA
Compatible productsKnown for one	ProBook 4330s, ProBook 4331s, ProBook 4430s, ProBook 4431s	Unknown — not stated by the source
Writing speedidentical
CD-R write speedKnown for one	Unknown — not stated by the source	24x
CD-RW write speedKnown for one	Unknown — not stated by the source	16x
DVD+R Double Layer write speedKnown for one	Unknown — not stated by the source	4x
DVD+R write speedKnown for one	Unknown — not stated by the source	8x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speedKnown for one	Unknown — not stated by the source	4x
DVD-R write speedKnown for one	Unknown — not stated by the source	8x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	5x
DVD-RW write speedKnown for one	Unknown — not stated by the source	6x
Reading speedidentical
CD-ROM read speedKnown for one	Unknown — not stated by the source	24x
BD-R read speedKnown for one	Unknown — not stated by the source	0x
BD-RE read speedKnown for one	Unknown — not stated by the source	0x
BD-ROM read speedKnown for one	Unknown — not stated by the source	6x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	8x
CD read speedKnown for one	24x	Unknown — not stated by the source
DVD read speedKnown for one	8x	Unknown — not stated by the source
Access time1 differ
BD-ROM average random access timeKnown for one	Unknown — not stated by the source	230 ms
CD-ROM drive average random access timeDiffers	140 ms	190 ms
DVD drive average random access timeKnown for one	160 ms	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.

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