Product comparison · 2 memory modules

HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit vs HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit

10specifications compared
4differ
6identical
1known for one product only

Key differences

The HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit has 800 MHz more memory clock speed than the HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit (1600 MHz vs 800 MHz). The HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit has 0.3 V more memory voltage than the HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit (1.8 V vs 1.5 V). Memory layout (modules x size): 1 x 8 GB on the HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit, 2 x 4 GB on the HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit. Internal memory type: DDR3 on the HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit, DDR2 on the HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit.

Memory layout (modules x size)
- 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit:1 x 8 GB
- 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit:2 x 4 GB
Internal memory type
- 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit:DDR3
- 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit:DDR2
Memory clock speed
- 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit:1600 MHz
- 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit:800 MHz
Memory voltage
- 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit:1.5 V
- 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit:1.8 V

Side by side

Differences highlightedShow differences only

Comparison of 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit, 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit
11 specifications	A HP 8GB (1x8GB) Dual Rank x4 PC3-12800R (DDR3-1600) Registered CAS-11 Memory Kit View product	B HP 8GB (2x4GB) Dual Rank PC2-6400 (DDR2-800) Registered Memory Kit View product
Features4 differ
Internal memory	8 GB	8 GB
Memory layout (modules x size)Differs	1 x 8 GB	2 x 4 GB
Internal memory typeDiffers	DDR3	DDR2
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyKnown for one	11	Unknown — not stated by the source
Memory clock speedDiffers	1600 MHz	800 MHz
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory ranking	2	2
Memory voltageDiffers	1.5 V	1.8 V

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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