Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM vs Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266

Researched, not hands-on tested.How we review ›

all judged against memory kits at a similar price

The Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266 scores 5.5/10 overall, ahead of the Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM at 4.4/10.

The Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM leads on fit.

The Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266 leads on speed and latency, compatibility, capacity options and reliability and warranty.

Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM

4.4/10verdict: skip

This kit is for people maintaining an older laptop, mini PC or small server that takes DDR3L SO-DIMMs. It gives 16GB across two 8GB modules at 1600 MT/s and CL11. Check your exact machine and current stock first, because the kit is listed as discontinued or unavailable at two retailers.

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Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266

5.5/10verdict: good, not the best

This is a 16GB kit of two 8GB DDR4 SODIMMs for people upgrading or repairing a laptop or compact system that Crucial lists as compatible. It suits buyers who want more capacity and a Limited Lifetime warranty rather than higher memory speed. Owners mainly mention good value and easy installation.

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Scores, criterion by criterion

Criterion	Weight	Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM	Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266
Speed and latency	30%	3/10	4/10
Compatibility	30%	5/10	6/10
Capacity options	15%	3/10	5/10
Reliability and warranty	15%	6/10	8/10
Fit	10%	6/10	5/10
Overall		4.4/10	5.5/10

Specifications

Spec	Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM	Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266
Type and form factor	DDR3L 204-pin SO-DIMM, unbuffered	DDR4 SODIMM (260-pin)
Capacity	16GB (2 x 8GB)	16GB kit (2x8GB)
Speed	1600 MT/s, PC3-12800	DDR4-2666
Latency (CL)	CL11	CL19 (19-19-19)
Voltage	1.35V	1.2V
ECC	Non-ECC	Non-ECC

Strengths and weaknesses

Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM

+ DDR3L-1600 CL11 at a low 1.35V
+ Crucial lists a Limited Lifetime warranty
+ No heat spreader on the modules
− Listed as discontinued or unavailable at two retailers
− Warranty length differs between Crucial and Quiet PC
− Non-ECC, with only a 16GB kit size listed

Skip it if:

Anyone building a new system, as the kit is discontinued or unavailable at two retailers.
Buyers who need ECC memory for a server.
Anyone who needs more than 16GB, since only the 2 x 8GB kit is listed.

Read the full Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM review ›

Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266

+ Limited Lifetime warranty listed by Crucial
+ Named HP and Dell systems on Crucial compatibility pages
+ Owners report good value and easy installation
− Only a DDR4-2666 CL19 rating is listed
− Non-ECC only
− Module height is not listed in the research

Skip it if:

Buyers who need ECC memory for a server or workstation
Anyone after faster speeds or tighter latency than DDR4-2666 CL19
Users planning several VMs who need more than 16GB

Read the full Crucial 16GB Kit (2 x 8GB) DDR4-2666 SODIMM CT2K8G4SFRA266 review ›

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