Product comparison · 2 memory modules

Kingston Technology 12GB, 1066MHz, DDR3, ECC, DIMM vs Kingston Technology 4GB DDR3-1066

Key differences

Internal memory
- 12GB, 1066MHz, DDR3, ECC, DIMM:12 GB
- 4GB DDR3-1066:4 GB
Memory layout (modules x size)
- 12GB, 1066MHz, DDR3, ECC, DIMM:3 x 4 GB
- 4GB DDR3-1066:1 x 4 GB
Memory form factor
- 12GB, 1066MHz, DDR3, ECC, DIMM:240-pin DIMM
- 4GB DDR3-1066:204-pin SO-DIMM
Memory bus
- 12GB, 1066MHz, DDR3, ECC, DIMM:72 bit
- 4GB DDR3-1066:64 bit
Buffered memory type
- 12GB, 1066MHz, DDR3, ECC, DIMM:Registered (buffered)
- 4GB DDR3-1066:Unregistered (unbuffered)
Module configuration
- 12GB, 1066MHz, DDR3, ECC, DIMM:512M X 72
- 4GB DDR3-1066:512M X 64
Chips organisation
- 12GB, 1066MHz, DDR3, ECC, DIMM:X4
- 4GB DDR3-1066:X8

Differences highlightedShow differences only

Comparison of 12GB, 1066MHz, DDR3, ECC, DIMM, 4GB DDR3-1066
19 specifications	A Kingston Technology 12GB, 1066MHz, DDR3, ECC, DIMM View product	B Kingston Technology 4GB DDR3-1066 View product
Features6 differ
Internal memoryDiffers	12 GB	4 GB
Memory layout (modules x size)Differs	3 x 4 GB	1 x 4 GB
Memory form factorDiffers	240-pin DIMM	204-pin SO-DIMM
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
Module configurationDiffers	512M X 72	512M X 64
ECCKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Chips organisationDiffers	X4	X8
CompatibilityKnown for one	Unknown — not stated by the source	51J0494 (Lenovo); 55Y3708 (Lenovo); 51J0493 (Lenovo); 55Y3714 (Lenovo)
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

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.