Product comparison · 2 memory modules

Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 vs Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2)

16specifications compared
13differ
3identical
4known for one product only

Key differences

The Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 has 12 GB more internal memory than the Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2) (16 GB vs 4 GB). The Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2) has 1 more CAS latency than the Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 (6 vs 5). The Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 has 8 bit more memory bus than the Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2) (72 bit vs 64 bit). Only the Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 has ECC. Memory layout (modules x size): 2 x 8 GB on the Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4, 2 x 2 GB on the Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2).

Internal memory
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:16 GB
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):4 GB
Memory layout (modules x size)
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:2 x 8 GB
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):2 x 2 GB
Memory form factor
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:240-pin DIMM
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):200-pin SO-DIMM
ECC
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:Yes
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):No
CAS latency
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:5
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):6
Memory bus
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:72 bit
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):64 bit
Buffered memory type
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:Registered (buffered)
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):Unregistered (unbuffered)
Module configuration
- 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4:1024M X 72
- 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2):256M X 64

Side by side

Differences highlightedShow differences only

Comparison of 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4, 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2)
20 specifications	A Kingston Technology 16GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM (Kit of 2) Dual Rank, x4 View product	B Kingston Technology 4GB 800MHz DDR2 Non-ECC CL6 SODIMM (Kit of 2)View product
Features8 differ
Internal memoryDiffers	16 GB	4 GB
Memory layout (modules x size)Differs	2 x 8 GB	2 x 2 GB
Memory form factorDiffers	240-pin DIMM	200-pin SO-DIMM
ECCDiffers	Yes	No
CAS latencyDiffers	5	6
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory rankingKnown for one	2	Unknown — not stated by the source
Module configurationDiffers	1024M X 72	256M X 64
Lead platingKnown for one	Gold	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	133.3 mm	Unknown — not stated by the source
Other features5 differ
Chips organisationKnown for one	X4	Unknown — not stated by the source
Bus clock rateDiffers	667 MHz	800 MHz
Error indicationDiffers	ECC	No
Form factorDiffers	240-pin DIMM	200-pin SODIMM
Internal memoryDiffers	16384 MB	4096 MB
Memory layoutDiffers	2 x 8192 MB	2 x 2048 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.

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