ADATA AD4S2666J4G19-R memory module vs ADATA AD4S2666W4G19-S memory module

Comparison of AD4S2666J4G19-R, AD4S2666W4G19-S

13 specifications	A ADATA AD4S2666J4G19-R memory module Model AD4S2666J4G19-R View product	B ADATA AD4S2666W4G19-S memory module Model AD4S2666W4G19-S View product
Features1 differ
Internal memory	4 GB	4 GB
Memory layout (modules x size)	1 x 4 GB	1 x 4 GB
Internal memory type	DDR4	DDR4
Component for	Laptop	Laptop
Memory form factor	260-pin SO-DIMM	260-pin SO-DIMM
CAS latencyKnown for one	19	—Unknown — not stated by the source
Memory clock speed	2666 MHz	2666 MHz
Memory voltage	1.2 V	1.2 V
Module configurationDiffers	512M x 16	512M x 8
Programming power voltage (VPP)Known for one	2.5 V	—Unknown — not stated by the source
JEDEC standard	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	0 - 85 °C	0 - 85 °C
Sustainabilityidentical
Compliance certificatesKnown for one	RoHS	—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.