Product comparison · 2 memory modules

Kingston Technology 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8 vs Kingston Technology 2GB 667MHz DDR2 Non-ECC CL5 DIMM

Key differences

Internal memory
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:1 GB
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:2 GB
Memory layout (modules x size)
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:1 x 1 GB
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:1 x 2 GB
ECC
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:Yes
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:No
CAS latency
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:4
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:5
Memory bus
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:72 bit
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:64 bit
Buffered memory type
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:Registered (buffered)
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:Unregistered (unbuffered)
Module configuration
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:128M X 72
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:256M X 64
Bus clock rate
- 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8:533 MHz
- 2GB 667MHz DDR2 Non-ECC CL5 DIMM:667 MHz

Differences highlightedShow differences only

Comparison of 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8, 2GB 667MHz DDR2 Non-ECC CL5 DIMM
19 specifications	A Kingston Technology 1GB 533MHz DDR2 ECC Registered CL4 DIMM Single Rank, x8 View product	B Kingston Technology 2GB 667MHz DDR2 Non-ECC CL5 DIMM View product
Features7 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 2 GB
ECCDiffers	Yes	No
CAS latencyDiffers	4	5
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Module configurationDiffers	128M X 72	256M X 64
Lead platingKnown for one	Gold	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	133.3 mm
Other features1 differ
Bus clock rateDiffers	533 MHz	667 MHz
Error indicationKnown for one	Unknown — not stated by the source	No
Internal memoryKnown for one	Unknown — not stated by the source	2048 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 2048 MB
Chips organisationKnown for one	X8	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.