Product comparison · 2 memory modules

Kingston Technology 4GB 1066MHz ECC vs Kingston Technology 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor

Key differences

Internal memory
- 4GB 1066MHz ECC:4 GB
- 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor:8 GB
Memory layout (modules x size)
- 4GB 1066MHz ECC:1 x 4 GB
- 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor:1 x 8 GB
Module configuration
- 4GB 1066MHz ECC:512M X 72
- 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor:1024M X 72

Differences highlightedShow differences only

Comparison of 4GB 1066MHz ECC, 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor
19 specifications	A Kingston Technology 4GB 1066MHz ECC View product	B Kingston Technology 8GB, 1066MHz, DDR3, ECC Reg, w/Parity, CL7, DIMM, Quad Rank, x8 w/Therm Sensor View product
Features3 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	1 x 8 GB
Internal memory type	DDR3	DDR3
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyKnown for one	Unknown — not stated by the source	7
Memory bus	72 bit	72 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory rankingKnown for one	Unknown — not stated by the source	4
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
Module configurationDiffers	512M X 72	1024M X 72
Memory type	DDR3	DDR3
Lead plating	Gold	Gold
Other featuresidentical
Chips organisation	X8	X8
Bus clock rateKnown for one	Unknown — not stated by the source	1066 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	8192 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 8192 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.