Product comparison · 2 memory modules

2-Power 2PCM-FH978AA memory module vs 2-Power 2PCM-FX621AA memory module

Key differences

Internal memory type
- 2PCM-FH978AA memory module:DDR2
- 2PCM-FX621AA memory module:DDR3L
Component for
- 2PCM-FH978AA memory module:Laptop
- 2PCM-FX621AA memory module:PC/Server
Memory form factor
- 2PCM-FH978AA memory module:200-pin SO-DIMM
- 2PCM-FX621AA memory module:240-pin DIMM
ECC
- 2PCM-FH978AA memory module:No
- 2PCM-FX621AA memory module:Yes
CAS latency
- 2PCM-FH978AA memory module:6
- 2PCM-FX621AA memory module:9
Memory clock speed
- 2PCM-FH978AA memory module:800 MHz
- 2PCM-FX621AA memory module:1333 MHz
Memory ranking
- 2PCM-FH978AA memory module:1
- 2PCM-FX621AA memory module:2

Differences highlightedShow differences only

Comparison of 2PCM-FH978AA, 2PCM-FX621AA
17 specifications	A 2-Power 2PCM-FH978AA memory module Model 2PCM-FH978AA View product	B 2-Power 2PCM-FX621AA memory module Model 2PCM-FX621AA View product
Features7 differ
Internal memory typeDiffers	DDR2	DDR3L
Component forDiffers	Laptop	PC/Server
Memory form factorDiffers	200-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	6	9
Memory clock speedDiffers	800 MHz	1333 MHz
Buffered memory typeKnown for one	Unknown — not stated by the source	Registered (buffered)
Memory rankingDiffers	1	2

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.