Product comparison · 2 memory modules

Kingston Technology 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel) vs Kingston Technology 4GB DDR3 1066MHz SODIMM

Key differences

Memory layout (modules x size)
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):4 x 1 GB
- 4GB DDR3 1066MHz SODIMM:1 x 4 GB
Memory form factor
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):240-pin DIMM
- 4GB DDR3 1066MHz SODIMM:204-pin SO-DIMM
CAS latency
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):9
- 4GB DDR3 1066MHz SODIMM:7
Memory bus
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):72 bit
- 4GB DDR3 1066MHz SODIMM:64 bit
Buffered memory type
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):Registered (buffered)
- 4GB DDR3 1066MHz SODIMM:Unregistered (unbuffered)
Module configuration
- 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel):512M X 72
- 4GB DDR3 1066MHz SODIMM:512M X 64

Differences highlightedShow differences only

Comparison of 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel), 4GB DDR3 1066MHz SODIMM
19 specifications	A Kingston Technology 4GB 1333MHz DDR3 ECC Reg w/Parity CL9 DIMM 2R x4 w/Therm Sen (Intel)View product	B Kingston Technology 4GB DDR3 1066MHz SODIMM View product
Features6 differ
Internal memory	4 GB	4 GB
Memory layout (modules x size)Differs	4 x 1 GB	1 x 4 GB
Internal memory type	DDR3	DDR3
Memory form factorDiffers	240-pin DIMM	204-pin SO-DIMM
CAS latencyDiffers	9	7
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltage	1.5 V	1.5 V
Module configurationDiffers	512M X 72	512M X 64
Memory type	DDR3	DDR3
Lead plating	Gold	Gold
ECCKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
CompatibilityKnown for one	Unknown — not stated by the source	577606-001 (HP)
Bus clock rateKnown for one	Unknown — not stated by the source	1066 MHz
Error indicationKnown for one	Unknown — not stated by the source	No
Form factorKnown for one	Unknown — not stated by the source	204-pin SODIMM
Internal memoryKnown for one	Unknown — not stated by the source	4096 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 4096 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.