Product comparison · 2 memory modules

Kingston Technology 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel) vs Kingston Technology 4 GB DDR2 SDRAM Memory Module

Key differences

Internal memory
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):2 GB
- 4 GB DDR2 SDRAM Memory Module:4 GB
Memory layout (modules x size)
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):2 x 1 GB
- 4 GB DDR2 SDRAM Memory Module:2 x 2 GB
Internal memory type
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):DDR3
- 4 GB DDR2 SDRAM Memory Module:DDR2
CAS latency
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):7
- 4 GB DDR2 SDRAM Memory Module:6
Buffered memory type
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):Registered (buffered)
- 4 GB DDR2 SDRAM Memory Module:Unregistered (unbuffered)
Memory voltage
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):1.5 V
- 4 GB DDR2 SDRAM Memory Module:1.8 V
Memory type
- 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel):DDR3
- 4 GB DDR2 SDRAM Memory Module:DDR2

Differences highlightedShow differences only

Comparison of 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel), 4 GB DDR2 SDRAM Memory Module
20 specifications	A Kingston Technology 2GB, 1066MHz, DDR3, ECC Reg, CL7, DIMM SR, x4 w/Therm Sensor (Intel)View product	B Kingston Technology 4 GB DDR2 SDRAM Memory Module View product
Features7 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	2 x 1 GB	2 x 2 GB
Internal memory typeDiffers	DDR3	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	7	6
Memory bus	72 bit	72 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltageDiffers	1.5 V	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	256M X 72
Memory typeDiffers	DDR3	DDR2
Lead platingKnown for one	Gold	Unknown — not stated by the source
Other featuresidentical
Special featuresKnown for one	Unknown — not stated by the source	Unbuffered
CompatibilityKnown for one	Unknown — not stated by the source	46C7427 (IBM); 46C7429 (IBM); 40W3167 (IBM)
Bus clock rateKnown for one	Unknown — not stated by the source	800 MHz
Error indicationKnown for one	Unknown — not stated by the source	ECC
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Internal memoryKnown for one	Unknown — not stated by the source	4096 MB
Memory layoutKnown for one	Unknown — not stated by the source	2 x 2048 MB
Chips organisationKnown for one	X4	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.