Product comparison · 2 memory modules

Kingston Technology 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8 vs Kingston Technology 256MB 333MHz DDR Non-ECC CL2.5 SODIMM

Key differences

Internal memory
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:1 GB
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:0.25 GB
Memory layout (modules x size)
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:1 x 1 GB
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:1 x 0.25 GB
Memory form factor
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:184-Pin DIMM
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:200-pin SO-DIMM
ECC
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:Yes
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:No
Memory bus
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:72 bit
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:64 bit
Check width
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:4 bit
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:16 bit
Buffered memory type
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:Registered (buffered)
- 256MB 333MHz DDR Non-ECC CL2.5 SODIMM:Unregistered (unbuffered)

Differences highlightedShow differences only

Comparison of 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8, 256MB 333MHz DDR Non-ECC CL2.5 SODIMM
18 specifications	A Kingston Technology 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8 View product	B Kingston Technology 256MB 333MHz DDR Non-ECC CL2.5 SODIMM View product
Features7 differ
Internal memoryDiffers	1 GB	0.25 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 0.25 GB
Memory form factorDiffers	184-Pin DIMM	200-pin SO-DIMM
ECCDiffers	Yes	No
Memory busDiffers	72 bit	64 bit
Check widthDiffers	4 bit	16 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Lead platingKnown for one	Gold	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	67 mm
DepthKnown for one	Unknown — not stated by the source	3 mm
HeightKnown for one	Unknown — not stated by the source	32 mm
Other featuresidentical
Mac compatibilityKnown for one	Unknown — not stated by the source	No
Chips organisationKnown for one	X8	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 70 °C	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.