Product comparison · 2 memory modules

Kingston Technology 4GB DDR3 1066MHz SODIMM vs Kingston Technology 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel)

Key differences

Internal memory
- 4GB DDR3 1066MHz SODIMM:4 GB
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):8 GB
Memory layout (modules x size)
- 4GB DDR3 1066MHz SODIMM:1 x 4 GB
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):2 x 4 GB
Memory form factor
- 4GB DDR3 1066MHz SODIMM:204-pin SO-DIMM
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):240-pin DIMM
CAS latency
- 4GB DDR3 1066MHz SODIMM:7
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):9
Memory bus
- 4GB DDR3 1066MHz SODIMM:64 bit
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):72 bit
Buffered memory type
- 4GB DDR3 1066MHz SODIMM:Unregistered (unbuffered)
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):Registered (buffered)
Module configuration
- 4GB DDR3 1066MHz SODIMM:512M X 64
- 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel):512M X 72

Differences highlightedShow differences only

Comparison of 4GB DDR3 1066MHz SODIMM, 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel)
20 specifications	A Kingston Technology 4GB DDR3 1066MHz SODIMM View product	B Kingston Technology 8GB, 1333MHz, DDR3, ECC Reg, w/Par CL9, DIMM (Kit of 2), DR, x4 w/TS (Intel)View product
Features7 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	2 x 4 GB
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
CAS latencyDiffers	7	9
Memory busDiffers	64 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Module configurationDiffers	512M X 64	512M X 72
ECCKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
CompatibilityKnown for one	577606-001 (HP)	Unknown — not stated by the source
Bus clock rateKnown for one	1066 MHz	Unknown — not stated by the source
Error indicationKnown for one	No	Unknown — not stated by the source
Form factorKnown for one	204-pin SODIMM	Unknown — not stated by the source
Internal memoryKnown for one	4096 MB	Unknown — not stated by the source
Memory layoutKnown for one	1 x 4096 MB	Unknown — not stated by the source
Chips organisationKnown for one	Unknown — not stated by the source	X4
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84733020

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.