Product comparison · 2 memory modules

Kingston Technology 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor vs Kingston Technology 8GB 1333MHz DDR3 Non-ECC CL9 DIMM

Key differences

Internal memory
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:4 GB
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:8 GB
Memory layout (modules x size)
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:1 x 4 GB
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:2 x 4 GB
ECC
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:Yes
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:No
Memory bus
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:72 bit
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:64 bit
Buffered memory type
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:Registered (buffered)
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:Unregistered (unbuffered)
Module configuration
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:512M X 72
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:512M X 64
Error indication
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:ECC
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:No
Internal memory
- 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor:4096 MB
- 8GB 1333MHz DDR3 Non-ECC CL9 DIMM:8192 MB

Differences highlightedShow differences only

Comparison of 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor, 8GB 1333MHz DDR3 Non-ECC CL9 DIMM
23 specifications	A Kingston Technology 4GB 1333MHz DDR3 ECC CL9 DIMM with Thermal Sensor View product	B Kingston Technology 8GB 1333MHz DDR3 Non-ECC CL9 DIMM View product
Features6 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	2 x 4 GB
Internal memory type	DDR3	DDR3
Component forKnown for one	Unknown — not stated by the source	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECCDiffers	Yes	No
CAS latency	9	9
Memory busDiffers	72 bit	64 bit
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltage	1.5 V	1.5 V
Module configurationDiffers	512M X 72	512M X 64
Row cycle timeKnown for one	Unknown — not stated by the source	49.5 ns
Refresh row cycle timeKnown for one	Unknown — not stated by the source	160 ns
Row active timeKnown for one	Unknown — not stated by the source	35 ns
Memory type	DDR3	DDR3
Lead plating	Gold	Gold
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 85 °C
Other features3 differ
Bus clock rate	1333 MHz	1333 MHz
Error indicationDiffers	ECC	No
Form factor	240-pin DIMM	240-pin DIMM
Internal memoryDiffers	4096 MB	8192 MB
Memory layoutDiffers	1 x 4096 MB	2 x 4096 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.