Product comparison · 2 memory modules

HP 1GB PC2-4200 vs HP 4GB PC2-6400

8specifications compared
3differ
5identical
2known for one product only

Key differences

The HP 4GB PC2-6400 has 3 GB more internal memory than the HP 1GB PC2-4200 (4 GB vs 1 GB). The HP 4GB PC2-6400 has 2 more CAS latency than the HP 1GB PC2-4200 (6 vs 4). The HP 4GB PC2-6400 has 267 MHz more memory clock speed than the HP 1GB PC2-4200 (800 MHz vs 533 MHz).

Internal memory
- 1GB PC2-4200:1 GB
- 4GB PC2-6400:4 GB
CAS latency
- 1GB PC2-4200:4
- 4GB PC2-6400:6
Memory clock speed
- 1GB PC2-4200:533 MHz
- 4GB PC2-6400:800 MHz

Side by side

Differences highlightedShow differences only

Comparison of 1GB PC2-4200, 4GB PC2-6400
10 specifications	A HP 1GB PC2-4200 View product	B HP 4GB PC2-6400 View product
Features3 differ
Internal memoryDiffers	1 GB	4 GB
Internal memory type	DDR2	DDR2
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	No	No
CAS latencyDiffers	4	6
Memory clock speedDiffers	533 MHz	800 MHz
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory voltageKnown for one	1.8 V	Unknown — not stated by the source
Module configurationKnown for one	64M x 8	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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