Product comparison · 2 memory modules

Dell 1GB DDR 400MHz Module vs Dell 2GB DDR2 667MHz ECC DIMM

Key differences

Internal memory
- 1GB DDR 400MHz Module:1 GB
- 2GB DDR2 667MHz ECC DIMM:2 GB
Memory layout (modules x size)
- 1GB DDR 400MHz Module:1 x 1 GB
- 2GB DDR2 667MHz ECC DIMM:1 x 2 GB
Internal memory type
- 1GB DDR 400MHz Module:DDR
- 2GB DDR2 667MHz ECC DIMM:DDR2
Memory form factor
- 1GB DDR 400MHz Module:184-pin DIMM
- 2GB DDR2 667MHz ECC DIMM:240-pin DIMM
ECC
- 1GB DDR 400MHz Module:No
- 2GB DDR2 667MHz ECC DIMM:Yes
Memory clock speed
- 1GB DDR 400MHz Module:400 MHz
- 2GB DDR2 667MHz ECC DIMM:667 MHz

Differences highlightedShow differences only

Comparison of 1GB DDR 400MHz Module, 2GB DDR2 667MHz ECC DIMM
15 specifications	A Dell 1GB DDR 400MHz Module View product	B Dell 2GB DDR2 667MHz ECC DIMM View product
Features6 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 2 GB
Internal memory typeDiffers	DDR	DDR2
Memory form factorDiffers	184-pin DIMM	240-pin DIMM
ECCDiffers	No	Yes
Memory clock speedDiffers	400 MHz	667 MHz
Buffered memory typeKnown for one	Unregistered (unbuffered)	Unknown — not stated by the source
Memory voltageKnown for one	2.5 V	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
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 80%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 85%
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

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.