Product comparison · 2 memory modules

Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 vs Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4

19specifications compared
4differ
15identical
1known for one product only

Key differences

The Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4 has 4 GB more internal memory than the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 (8 GB vs 4 GB). The Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4 has 1 x 4 GB more memory layout (modules x size) than the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 (2 x 4 GB vs 1 x 4 GB). The Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4 has 4,096 MB more internal memory than the Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 (8192 MB vs 4096 MB).

Internal memory
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:4 GB
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4:8 GB
Memory layout (modules x size)
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:1 x 4 GB
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4:2 x 4 GB
Internal memory
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:4096 MB
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4:8192 MB
Memory layout
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:1 x 4096 MB
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4:2 x 4096 MB

Side by side

Differences highlightedShow differences only

Comparison of 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4, 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4
20 specifications	A Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 View product	B Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM (Kit of 2) Dual Rank, x4 View product
Features2 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	2 x 4 GB
Internal memory type	DDR2	DDR2
Component forKnown for one	Unknown — not stated by the source	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latency	5	5
Memory bus	72 bit	72 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory ranking	2	2
Memory voltage	1.8 V	1.8 V
Module configuration	512M X 72	512M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other features2 differ
Chips organisation	X4	X4
Bus clock rate	667 MHz	667 MHz
Error indication	Parity	Parity
Form factor	240-pin DIMM	240-pin DIMM
Internal memoryDiffers	4096 MB	8192 MB
Memory layoutDiffers	1 x 4096 MB	2 x 4096 MB

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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