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Compare CORSAIR WS 64GB (4x16GB) DDR5 6400MHz ECC RDIMM vs WS 128GB (4x32GB) DDR5 5600MHz ECC RDIMM

The main differences between CORSAIR WS 64GB (4x16GB) DDR5 6400MHz ECC RDIMM and CORSAIR WS 128GB (4x32GB) DDR5 5600MHz ECC RDIMM are in Speed, Size, CAS Latency and Timing.

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CORSAIR WS 64GB (4x16GB) DDR5 6400MHz ECC RDIMM

CORSAIR WS 128GB (4x32GB) DDR5 5600MHz ECC RDIMM

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Brand

Corsair

Brand

Corsair

Model

CMA64GX5M4B6400C32

Model

CMA128GX5M4B5600Z40

Release Date

📅 April 2024

Release Date

📅 April 2024

* First availability for purchase, it may not correspond to the actual market launch date.

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Price history

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Price history

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Price/GB

$12.50

Price/GB

$7.37

GB/$1

0.08

GB/$1

0.14

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

DDR5-6400 MHz

Speed

DDR5-5600 MHz

Size

64GB (4 x 16GB)

Size

128GB (4 x 32GB)

CAS Latency

32

CAS Latency

40

Timing

32-40-40-104

Timing

40-40-40-77

First Word Latency

10 ns

First Word Latency

14.28 ns

Voltage

1.35 V

Voltage

1.25 V

Heat Spreader

No

Heat Spreader

No

ECC Support

Yes

ECC Support

Yes

Options (2)

	5600MHz 128GB (8x16GB) $1,517.49
	5600MHz 64GB (4x16GB) $1,136.99

Options (1)

CORSAIR WS 256GB (8x32GB) DDR5 5600MHz ECC RDIMM

5600MHz 256GB (8x32GB)
$1,885.99

Comparison and key differences summary

Reasons to buy the CORSAIR WS 64GB (4x16GB) DDR5 6400MHz ECC RDIMM:

15% cheaper, you can save $143.00
Less CAS latency (-8)
Better first word latency (-4.28 ns)
Higher speed frequency (+800 MHz)

Reasons to buy the CORSAIR WS 128GB (4x32GB) DDR5 5600MHz ECC RDIMM:

Less voltage required (-0.10 V needed)
More Capacity (+64 GB available)

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