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Compare Crucial 128GB (2x64GB) DDR5 5600MHz vs Pro Overclocking 32GB (2x16GB) DDR5 6400MHz

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  3. Crucial 128GB (2x64GB) DDR5 5600MHz 🆚 Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz
The main differences between Crucial 128GB (2x64GB) DDR5 5600MHz and Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz are in Speed, Size, CAS Latency and First Word Latency.
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Crucial 128GB (2x64GB) DDR5 5600MHz UDIMM 288-Pin CT2K64G56C46U5
Crucial 128GB (2x64GB) DDR5 5600MHz
Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz CL32 Black CP2K16G64C32U5B
Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz
Prices
(Change region)
Out of Stock
Free shipping
$1,111.99
Out of Stock
$1,112.49
Out of Stock
$1,112.49
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Prices
(Change region)
Out of Stock
Free shipping
$389.99
Out of Stock
Free shipping
$389.99
Out of Stock
Free shipping
$399.99
Show 2 more offers
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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
Crucial
Brand
Crucial
Model
CT2K64G56C46U5
Model
CP2K16G64C32U5B
Release Date
📅 February 2025
Release Date
📅 October 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★☆
(63 reviews)
User reviews
★★★★☆
(72 reviews)
Price history
View Details ►
Price history
View Details ►
Price/GB
$8.69
Price/GB
$12.19
GB/$1
0.12
GB/$1
0.08
Samsung B-Die
No
Samsung B-Die
No
Compatible PC parts
Motherboards ►
Compatible PC parts
Motherboards ►
Type
288-pin DDR5 DIMM
Type
288-pin DDR5 DIMM
Speed
DDR5-5600 MHz
Speed
DDR5-6400 MHz
Size
128GB (2 x 64GB)
Size
32GB (2 x 16GB)
CAS Latency
46
CAS Latency
32
Timing
-
Timing
32-40-40-103
First Word Latency
16.43 ns
First Word Latency
10 ns
Voltage
1.1 V
Voltage
1.35 V
Heat Spreader
No
Heat Spreader
Yes
ECC Support
No
ECC Support
No
Color
Black
Color
Black

Comparison and key differences summary

Reasons to buy the Crucial 128GB (2x64GB) DDR5 5600MHz:

  • Less voltage required (-0.25 V needed)
  • More Capacity (+96 GB available)

Buy now

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

  • 65% cheaper, you can save $722.00
  • Newer Product, it was released around 8 months later
  • Less CAS latency (-14)
  • Better first word latency (-6.43 ns)
  • Higher speed frequency (+800 MHz)

Buy now

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