Product comparison · 2 memory modules

HP 647893-B21 memory module vs HP A2Z51AA memory module

Key differences

Internal memory
- 647893-B21 memory module:4 GB
- A2Z51AA memory module:8 GB
Memory layout (modules x size)
- 647893-B21 memory module:1 x 4 GB
- A2Z51AA memory module:1 x 8 GB
Memory clock speed
- 647893-B21 memory module:1333 MHz
- A2Z51AA memory module:1600 MHz

Differences highlightedShow differences only

Comparison of 647893-B21, A2Z51AA
8 specifications	A HP 647893-B21 memory module Model 647893-B21 View product	B HP A2Z51AA memory module Model A2Z51AA View product
Features3 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	1 x 8 GB
Component forKnown for one	PC/Server	Unknown — not stated by the source
CAS latencyKnown for one	9	Unknown — not stated by the source
Memory clock speedDiffers	1333 MHz	1600 MHz

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.