Product comparison · 2 memory modules

Dell 256MB PC100 SDRAM vs Dell 512MB DDR-266 SO-DIMM

Key differences

Internal memory
- 256MB PC100 SDRAM:0.25 GB
- 512MB DDR-266 SO-DIMM:0.5 GB
Memory layout (modules x size)
- 256MB PC100 SDRAM:1 x 0.25 GB
- 512MB DDR-266 SO-DIMM:1 x 0.5 GB
Internal memory type
- 256MB PC100 SDRAM:SDR SDRAM
- 512MB DDR-266 SO-DIMM:DDR
Component for
- 256MB PC100 SDRAM:PC/Server
- 512MB DDR-266 SO-DIMM:Laptop
Memory form factor
- 256MB PC100 SDRAM:168-pin DIMM
- 512MB DDR-266 SO-DIMM:200-pin SO-DIMM
ECC
- 256MB PC100 SDRAM:Yes
- 512MB DDR-266 SO-DIMM:No
Memory clock speed
- 256MB PC100 SDRAM:100 MHz
- 512MB DDR-266 SO-DIMM:266 MHz
Buffered memory type
- 256MB PC100 SDRAM:Registered (buffered)
- 512MB DDR-266 SO-DIMM:Unregistered (unbuffered)

Differences highlightedShow differences only

Comparison of 256MB PC100 SDRAM, 512MB DDR-266 SO-DIMM
11 specifications	A Dell 256MB PC100 SDRAM View product	B Dell 512MB DDR-266 SO-DIMM View product
Features8 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Memory layout (modules x size)Differs	1 x 0.25 GB	1 x 0.5 GB
Internal memory typeDiffers	SDR SDRAM	DDR
Component forDiffers	PC/Server	Laptop
Memory form factorDiffers	168-pin DIMM	200-pin SO-DIMM
ECCDiffers	Yes	No
CAS latencyKnown for one	Unknown — not stated by the source	2.5
Memory clock speedDiffers	100 MHz	266 MHz
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltageKnown for one	Unknown — not stated by the source	2.5 V
Packaging data1 differ
Package typeDiffers	DIMM	SO-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.