Product comparison · 2 memory modules

Kingston Technology 2GB 400MHz DDR2 Non-ECC CL3 DIMM vs Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated

Key differences

Internal memory
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:2 GB
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:4 GB
Memory layout (modules x size)
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:1 x 2 GB
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:1 x 4 GB
ECC
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:No
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:Yes
Memory bus
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:64 bit
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:72 bit
Check width
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:8 bit
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:4 bit
Buffered memory type
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:Unregistered (unbuffered)
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated:Registered (buffered)

Differences highlightedShow differences only

Comparison of 2GB 400MHz DDR2 Non-ECC CL3 DIMM, 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated
15 specifications	A Kingston Technology 2GB 400MHz DDR2 Non-ECC CL3 DIMM View product	B Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 Intel Validated View product
Features6 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	1 x 2 GB	1 x 4 GB
ECCDiffers	No	Yes
Memory busDiffers	64 bit	72 bit
Check widthDiffers	8 bit	4 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Module configurationKnown for one	256M X 64	Unknown — not stated by the source
Other featuresidentical
Bus clock rateKnown for one	400 MHz	Unknown — not stated by the source
Form factorKnown for one	240-pin DIMM	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.