Product comparison · 2 memory modules

Kingston Technology 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8 vs Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4

Key differences

Internal memory
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:1 GB
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:2 GB
Memory layout (modules x size)
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:1 x 1 GB
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:1 x 2 GB
Check width
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:8 bit
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:4 bit
Module configuration
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:128M X 72
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:256M X 72
Chips organisation
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:X8
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:X4
Internal memory
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:1024 MB
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:2048 MB
Memory layout
- 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8:1 x 1024 MB
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4:1 x 2048 MB

Differences highlightedShow differences only

Comparison of 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8, 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4
20 specifications	A Kingston Technology 1GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8 View product	B Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x4 View product
Features4 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 2 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latency	3	3
Memory bus	72 bit	72 bit
Check widthDiffers	8 bit	4 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory ranking	1	1
Memory voltage	1.8 V	1.8 V
Module configurationDiffers	128M X 72	256M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other features3 differ
Chips organisationDiffers	X8	X4
Bus clock rate	400 MHz	400 MHz
Error indication	ECC	ECC
Form factor	240-pin DIMM	240-pin DIMM
Internal memoryDiffers	1024 MB	2048 MB
Memory layoutDiffers	1 x 1024 MB	1 x 2048 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.