CORSAIR WS DDR5 ECC RDIMM 64GB (4x16GB) 5600MHz CL40
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CORSAIR WS DDR5 ECC RDIMM 64GB (4x16GB) 5600MHz CL40 Review & Specifications
The CORSAIR WS DDR5 ECC RDIMM 64GB (4x16GB) 5600MHz CL40 from Corsair is a RAM module, identified by part number CMA64GX5M4B5600C40. This module offers a total capacity of 64 GB and utilizes DDR5 ECC Reg memory type. It comes in a (4x16GB) kit configuration and features a DIMM form factor. It supports ECC (Error-Correcting Code), making it suitable for servers and critical systems.
Performance
Clocked at 5600 MT/s and featuring relaxed ECC Registered timings of 40-40-40-77, this module emphasizes maximum stability and error resilience over raw latency. Its 77.0% performance rating reflects a design optimized for entry-level servers, infrastructure systems, and workloads where correctness and uptime matter more than peak responsiveness.
Cost-Effectiveness
From a cost-efficiency perspective, this RAM module offers low value, priced at $10.9 per gigabyte. The overall combined performance-to-price ratio, which evaluates both speed and cost per GB, is 83.2%. This makes it an outstanding choice for users seeking maximum performance per dollar spent.
General Information
| Manufacturer | Corsair |
|---|---|
| RAM Name | CORSAIR WS DDR5 ECC RDIMM 64GB (4x16GB) 5600MHz CL40 |
| Part Number | CMA64GX5M4B5600C40 |
| Current Price Amazon | $699❗N/A |
| Amazon Price Updated | 4 months, 2 weeks ago. |
| RAM Available | False |
Specification
| Capacity / Type | 64 GB / DDR5 ECC Reg |
|---|---|
| Kit / Form Factor | (4x16GB) / DIMM |
| ECC | Yes — Registered ECC (RDIMM) |
Performance
| RAM Speed | 5600 MT/s |
|---|---|
| Timings | 40-40-40-77 |
| Price per Gigabyte | 10.9 USD/GB |
Calculated Performance
CORSAIR WS DDR5 ECC RDIMM 64GB (4x16GB) 5600MHz CL40 Compared to RAM with Similar Performance
RAM Price / Performance Table
| RAM_Memory (Desc) | Price (Desc) | Performance (Desc) | Perf/Price (Desc) | Comb/Price (Desc) | USD/Gigabyte (Desc) |
|---|---|---|---|---|---|
|
$390
|
0.0%
|
79.8%
|
65.5%
|
77.3%
|
12.2
|
|
|
$270
|
0.0%
|
78.5%
|
93.0%
|
109.7%
|
8.4
|
|
|
$270
|
0.0%
|
78.5%
|
93.0%
|
54.9%
|
16.9
|
|
|
$940
|
↓
-0.2%
|
77.0%
|
26.2%
|
61.8%
|
14.7
|
|
|
$2251
|
0.0%
|
77.0%
|
10.9%
|
51.7%
|
17.6
|
|
|
$314
|
↓
-0.6%
|
77.0%
|
78.4%
|
46.2%
|
19.7
|
|
|
$1300
|
0.0%
|
77.0%
|
19.0%
|
67.1%
|
13.5
|
|
|
$699
|
0.0%
|
77.0%
|
35.3%
|
83.2%
|
10.9
|
|
|
$1311
|
0.0%
|
77.0%
|
18.8%
|
66.5%
|
13.7
|
RAM Comparison and Detail Specifications Table
| Specification | Perf Chart | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Price |
$390
|
0.0%
|
$270❗
|
0.0%
|
$270❗
|
0.0%
|
$940
|
↓
-0.2%
|
$2251
|
0.0%
|
$314
|
↓
-0.6%
|
$1300❗
|
0.0%
|
$699❗
|
0.0%
|
$1311❗
|
0.0%
|
| Price per GB | 12.2 USD/GB | 8.4 USD/GB | 16.9 USD/GB | 14.7 USD/GB | 17.6 USD/GB | 19.7 USD/GB | 13.5 USD/GB | 10.9 USD/GB | 13.7 USD/GB |
| Manufacturer | Silicon Power | Kingston Technology Company, Inc. | Kingston Technology Company, Inc. | Corsair | Kingston | Kingston | Corsair | Corsair | Corsair |
| Type | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 ECC Reg | DDR5 |
| Capacity / Kit | 32 GB / (2x16GB) | 32 GB / (2x16GB) | 16 GB / (2x8GB) | 64 GB / (2x32GB) | 128 GB / (4x32GB) | 16 GB / (2x8GB) | 96 GB / (4x24GB) | 64 GB / (4x16GB) | 96 GB / (4x24GB) |
| Speed | 6000 MT/s | 5200 MT/s | 5200 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s |
| Timings | 40-40-40-76 | 36-40-40 | 36-40-40 | 40-40-40-77 | 40 | 40 | 40-40-40-77 | 40-40-40-77 | 40-40-40-77 |
| Voltage | 1.35 V | 1.25 V | 1.25 V | 1.25 V | 1.30 V | 1.30 V | 1.25 V | 1.25 V | 1.25 V |
| ECC | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✔️ | ❌ |
| Part Number | SU032GXLWU600FDHAB | KF552C36BBEAK2-32 | KF552C36BBEAK2-16 | CMK64GX5M2B5600C40 | KF556C40BWK4-128 | KF556C40BBK2-16 | CMK96GX5M4B5600C40 | CMA64GX5M4B5600C40 | CMK96GX5M2B5600C40 |
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RAM Specification Table
| RAM_Memory (Desc) | >Cap/RAM_kit/Type | Speed/Timings | Voltage |
|---|---|---|---|
| 32 GB / (2x16GB) / DDR5 | 6000 MT/s / 40-40-40-76 | 1.35 V | |
| 32 GB / (2x16GB) / DDR5 | 5200 MT/s / 36-40-40 | 1.25 V | |
| 16 GB / (2x8GB) / DDR5 | 5200 MT/s / 36-40-40 | 1.25 V | |
| 64 GB / (2x32GB) / DDR5 | 5600 MT/s / 40-40-40-77 | 1.25 V | |
| 128 GB / (4x32GB) / DDR5 | 5600 MT/s / 40 | 1.30 V | |
| 16 GB / (2x8GB) / DDR5 | 5600 MT/s / 40 | 1.30 V | |
| 96 GB / (4x24GB) / DDR5 | 5600 MT/s / 40-40-40-77 | 1.25 V | |
| 64 GB / (4x16GB) / DDR5 ECC Reg | 5600 MT/s / 40-40-40-77 | 1.25 V | |
| 96 GB / (4x24GB) / DDR5 | 5600 MT/s / 40-40-40-77 | 1.25 V |
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