Product comparison · 2 memory modules

Kingston Technology 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8 vs Kingston Technology 4GB, 1066MHz, DDR3, ECC w/ thermal sensor

Key differences

Internal memory
- 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8:1 GB
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:4 GB
Internal memory type
- 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8:DDR2
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:DDR3
CAS latency
- 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8:5
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:7
Buffered memory type
- 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8:Registered (buffered)
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:Unregistered (unbuffered)
Memory voltage
- 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8:1.8 V
- 4GB, 1066MHz, DDR3, ECC w/ thermal sensor:1.5 V

Differences highlightedShow differences only

Comparison of 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8, 4GB, 1066MHz, DDR3, ECC w/ thermal sensor
20 specifications	A Kingston Technology 1GB, 800MHz, DDR2, ECC Fully Buffered, CL5, DIMM Single Rank, x8 View product	B Kingston Technology 4GB, 1066MHz, DDR3, ECC w/ thermal sensor View product
Features5 differ
Internal memoryDiffers	1 GB	4 GB
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 4 GB
Internal memory typeDiffers	DDR2	DDR3
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	5	7
Memory busKnown for one	Unknown — not stated by the source	72 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory rankingKnown for one	Unknown — not stated by the source	2
Memory voltageDiffers	1.8 V	1.5 V
Module configurationKnown for one	Unknown — not stated by the source	512M X 72
Memory typeKnown for one	Unknown — not stated by the source	DDR3
Lead plating	Gold	Gold
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	X8
CompatibilityKnown for one	Unknown — not stated by the source	333-0880 (Apple); MB982G/A (Apple)
Bus clock rateKnown for one	Unknown — not stated by the source	1066 MHz
Error indicationKnown for one	Unknown — not stated by the source	ECC
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
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.