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Compare Crucial 16GB 260-Pin DDR4 2666 SODIMM CT16G4SFD8266 vs Pro Overclocking 32GB (2x16GB) DDR5 6400MHz

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  3. Crucial 16GB 260-Pin DDR4 2666 SODIMM CT16G4SFD8266 🆚 Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz
The main differences between Crucial 16GB 260-Pin DDR4 2666 SODIMM CT16G4SFD8266 and Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz are in Speed, Size, CAS Latency and Timing.
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Crucial 16GB 260-Pin DDR4 2666 (PC4-21300) SODIMM CL19 Unbuffered Dual Ranked x8 1.2V (CT16G4SFD8266)
Crucial 16GB 260-Pin DDR4 2666 SODIMM CT16G4SFD8266
Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz CL32 Black CP2K16G64C32U5B
Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz
Prices
(Change region)
In Stock
Free shipping
$106.09
In Stock
$129.99
Last updated 49 minutes ago.
Prices
(Change region)
Out of Stock
Free shipping
$389.99
Out of Stock
Free shipping
$389.99
Out of Stock
Free shipping
$399.99
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Brand
Crucial
Brand
Crucial
Model
CT16G4SFD8266
Model
CP2K16G64C32U5B
Release Date
-
Release Date
📅 October 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★☆
(48 reviews)
User reviews
★★★★☆
(72 reviews)
Price history
View Details ►
Price history
View Details ►
Price/GB
$3.12
Price/GB
$12.19
GB/$1
0.32
GB/$1
0.08
Samsung B-Die
No
Samsung B-Die
No
Compatible PC parts
Motherboards ►
Compatible PC parts
Motherboards ►
Type
260-pin DDR4 SODIMM
Type
288-pin DDR5 DIMM
Speed
DDR4-2666 MHz
Speed
DDR5-6400 MHz
Size
16GB (1 x 16GB)
Size
32GB (2 x 16GB)
CAS Latency
19
CAS Latency
32
Timing
19-19-19
Timing
32-40-40-103
First Word Latency
14.25 ns
First Word Latency
10 ns
Voltage
1.2 V
Voltage
1.35 V
Heat Spreader
No
Heat Spreader
Yes
ECC Support
No
ECC Support
No
Color
-
Color
Black

Comparison and key differences summary

Reasons to buy the Crucial 16GB 260-Pin DDR4 2666 SODIMM CT16G4SFD8266:

  • 73% cheaper, you can save $283.90
  • Less voltage required (-0.15 V needed)
  • Less CAS latency (-13)

Buy now

Reasons to buy the Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz:

  • Better first word latency (-4.25 ns)
  • More Capacity (+16 GB available)

Buy now

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