Product comparison · 2 memory modules

Kingston Technology 4GB DDR3 240-pin DIMM vs Kingston Technology KFJ9900/1G, 1GB 1333MHz

Key differences

Internal memory
- 4GB DDR3 240-pin DIMM:4 GB
- KFJ9900/1G, 1GB 1333MHz:1 GB
Memory layout (modules x size)
- 4GB DDR3 240-pin DIMM:1 x 4 GB
- KFJ9900/1G, 1GB 1333MHz:1 x 1 GB
ECC
- 4GB DDR3 240-pin DIMM:Yes
- KFJ9900/1G, 1GB 1333MHz:No
CAS latency
- 4GB DDR3 240-pin DIMM:7
- KFJ9900/1G, 1GB 1333MHz:9
Memory bus
- 4GB DDR3 240-pin DIMM:72 bit
- KFJ9900/1G, 1GB 1333MHz:64 bit
Buffered memory type
- 4GB DDR3 240-pin DIMM:Registered (buffered)
- KFJ9900/1G, 1GB 1333MHz:Unregistered (unbuffered)

Differences highlightedShow differences only

Comparison of 4GB DDR3 240-pin DIMM, KFJ9900/1G, 1GB 1333MHz
13 specifications	A Kingston Technology 4GB DDR3 240-pin DIMM View product	B Kingston Technology KFJ9900/1G, 1GB 1333MHz View product
Features6 differ
Internal memoryDiffers	4 GB	1 GB
Memory layout (modules x size)Differs	1 x 4 GB	1 x 1 GB
Internal memory type	DDR3	DDR3
Memory form factorKnown for one	240-pin DIMM	Unknown — not stated by the source
ECCDiffers	Yes	No
CAS latencyDiffers	7	9
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltageKnown for one	1.5 V	Unknown — not stated by the source
Module configurationKnown for one	512M X 72	Unknown — not stated by the source
Memory type	DDR3	DDR3
Lead plating	Gold	Gold
Other featuresidentical
Chips organisationKnown for one	X8	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.