Product comparison · 2 memory modules

HP 500668-S21 memory module vs HP 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7

Key differences

Internal memory
- 500668-S21 memory module:1 GB
- 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7:8 GB
Memory layout (modules x size)
- 500668-S21 memory module:1 x 1 GB
- 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7:1 x 8 GB
CAS latency
- 500668-S21 memory module:9
- 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7:7
Memory clock speed
- 500668-S21 memory module:1333 MHz
- 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7:1066 MHz
Buffered memory type
- 500668-S21 memory module:Unregistered (unbuffered)
- 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7:Registered (buffered)

Differences highlightedShow differences only

Comparison of 500668-S21, 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7
15 specifications	A HP 500668-S21 memory module Model 500668-S21 View product	B HP 8GB 2Rx4 DDR3 1066MHz ECC RDIMM CL7 View product
Features5 differ
Internal memoryDiffers	1 GB	8 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 8 GB
Internal memory type	DDR3	DDR3
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	9	7
Memory clock speedDiffers	1333 MHz	1066 MHz
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory rankingKnown for one	Unknown — not stated by the source	2
Component forKnown for one	PC/Server	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 85 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-25 - 95 °C
Softwareidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Package typeKnown for one	Unknown — not stated by the source	DIMM

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.