Samsung vs SK Hynix DDR4 RAMS: Which Brand Fits You?
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
When you evaluate samsung vs SK Hynix ddr4 RAM, you find two reliable 32GB modules for server workloads. Both operate at DDR4-2133 speeds and support ECC. The main difference lies in their specific registration and physical profile. Samsung offers a low-profile design, while SK Hynix provides standard RDIMM form factors. You need to check your motherboard compatibility carefully before purchasing either kit.
Key differences
| Aspect | Samsung 32GB DDR4-2133 ECC Registered Memory | SK Hynix 32GB DDR4-2133 RDIMM |
|---|---|---|
| Capacity | 32GB | 32GB |
| Memory Speed | DDR4-2133 | DDR4-2133 |
| ECC Support | ECC REG | ECC |
| Form Factor | Low Profile | RDIMM |
| Model Number | M393A4K40BB0-CPB | HMA84GL7MMR4N-TF |
Which one should you choose?
Choose Samsung 32GB DDR4-2133 ECC Registered Memory if
- You need a low-profile module for tight server chassis clearance.
- You require confirmed ECC Registered (REG) support for your specific server board.
Choose SK Hynix 32GB DDR4-2133 RDIMM if
- You prefer the standard RDIMM form factor listed by SK Hynix.
- You want a module with a specified weight of 1.12 ounces for logistics tracking.
Verdict: Choose the Samsung module if your server requires a low-profile height and confirmed ECC Registered support. Select the SK Hynix option if you need a standard RDIMM form factor with explicit weight specifications. Both provide the same 32GB capacity and 2133 speed for stable operation.
Samsung vs SK Hynix DDR4 Specs
Memory Speed
Both the Samsung M393A4K40BB0-CPB and the SK Hynix HMA84GL7MMR4N-TF operate at DDR4-2133 speeds. This means each module handles 2,133 million data transfers per second. This frequency is standard for many enterprise and server environments from the DDR4 era. You get identical bandwidth potential from either stick. Neither brand offers a higher base clock speed in this specific comparison. If your system requires exactly 2133 MT/s, both products meet that requirement perfectly. The performance ceiling is the same for your workload.
Capacity
Each module provides 32GB of total memory capacity. This is a significant amount for single-DIMM installations in servers or workstations. You can fill a memory channel with one stick to reach this size. Both the Samsung and SK Hynix options offer this exact capacity. There is no difference in how much data you can store on a single stick. This makes them equally suitable for applications requiring large single-module buffers. You do not need to buy two sticks to achieve 32GB. The capacity is identical across both brands.
ECC Support
Error Correction Code is critical for server stability. The Samsung module is explicitly labeled as ECC Registered. The SK Hynix module lists ECC support in its attributes. Both provide error checking to prevent data corruption. However, the Samsung spec sheet highlights the Registered nature more prominently in its features list. Registered DIMMs manage memory commands differently than unregistered ones. While both are RDIMMs, the Samsung listing emphasizes the full ECC REG specification. This clarity might help you confirm compatibility with your server's memory controller requirements.
Physical Profile
Physical dimensions matter for airflow and case clearance. The Samsung module is described as Low Profile. Its height is listed as 1.23 inches. The SK Hynix module has a height of 1.21 inches. Both are very slim compared to standard desktop DIMMs. The SK Hynix is slightly shorter by 0.02 inches. This difference is negligible for most server racks. However, the Samsung Low Profile designation suggests it is optimized for tight spaces. If you are installing these in dense blade servers, the low height of both is beneficial. The SK Hynix is marginally thinner.
Model Number Clarity
Identifying the exact part number helps in compatibility checks. The Samsung product lists M393A4K40BB0-CPB in its features and M393A4K40BB0-CPB4Y in its specs. The SK Hynix product lists HMA84GL7MMR4N-TF. Both provide clear manufacturer part numbers. The Samsung number includes a suffix variation in the specs section. The SK Hynix number is consistent. You can use either number to verify support on your motherboard or server manual. The SK Hynix listing is slightly more consistent in its primary model identifier. This reduces confusion when searching for drivers or documentation.
Choose the Right Samsung or SK Hynix Kit
Small form factor server builders
The Samsung module features a low profile design with a height of 1.23 inches. This compact physical dimension allows for better airflow in tight chassis spaces. You benefit from reduced clearance issues while maintaining the necessary 32GB capacity for your specific server workload requirements.
Standard rackmount server administrators
The SK Hynix option is a standard RDIMM with a height of 1.21 inches. It supports ECC registered memory for data integrity. This configuration fits traditional server slots perfectly. You get reliable performance at DDR4-2133 speeds without worrying about physical clearance constraints in standard enterprise equipment.
Users prioritizing lightweight components
The SK Hynix memory weighs only 1.12 ounces. This lightweight specification matters when building large arrays with many modules. You reduce the overall weight of your server stack. Both products offer identical capacity and speed, so this weight difference is a practical consideration for heavy deployments.
The products compared
Samsung 32GB DDR4-2133 ECC Registered Memory
Best for: Server workstations requiring 32GB ECC REG
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- Module Configuration
- 1x32GB
- ECC Support
- ECC REG
- Dimensions
- 5.25 × 0.15 × 1.23 inches
View on Amazon: Samsung 32GB DDR4-2133 ECC Registered Memory Affiliate link
This Samsung module offers 32GB of DDR4-2133 memory with ECC REG support. It features a low-profile 2Rx4 design, making it suitable for compact server builds. The black PCB measures 5.25 inches in length. You should consider this kit if you need reliable error correction for professional workstations. It fits well in systems requiring stable, high-capacity memory without the bulk of standard-height modules.
Pros
- 32GB capacity per stick
- DDR4-2133 speed rating
- ECC REG error correction
- Low-profile 2Rx4 design
Cons
- Limited to DDR4-2133 speed
- Requires compatible server motherboard
- ECC REG not for standard desktops
Good fit if
- You need 32GB per stick for server workloads
- You require ECC REG for data integrity
- You have a low-clearance server chassis
Skip if
- You are building a standard desktop PC
- You need speeds higher than DDR4-2133
- You want non-ECC consumer memory
Verdict: Samsung 32GB DDR4-2133 ECC REG is ideal for server administrators needing high-capacity, error-correcting memory in a compact form factor.
SK Hynix 32GB DDR4-2133 RDIMM
Best for: server and workstation reliability
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- Module Configuration
- 1x32GB
- Form Factor
- U-DIMM
- ECC Support
- ECC RDIMM
- Dimensions
- 5.25 × 0.16 × 1.21 inches
View on Amazon: SK Hynix 32GB DDR4-2133 RDIMM Affiliate link
This SK Hynix module provides 32GB of DDR4-2133 memory with ECC support. It uses the RDIMM form factor, designed for server and workstation reliability. The compact dimensions of 5.25 by 1.21 by 0.16 inches fit standard slots. You get error correction for stable operation in demanding environments. It is a solid choice for systems requiring registered memory and data integrity.
Pros
- 32GB capacity for high multitasking
- ECC support for error correction
- RDIMM form factor for servers
- DDR4-2133 speed standard
Cons
- Limited to DDR4-2133 speed
- Requires compatible RDIMM motherboard
- Heavier than standard UDIMM kits
Good fit if
- You need ECC memory for stability
- You are building a server or workstation
- You require 32GB capacity per stick
Skip if
- You use a standard consumer desktop
- You need faster than DDR4-2133 speeds
- You require UDIMM form factor
Verdict: SK Hynix 32GB DDR4 ECC RDIMM fits server builds needing error correction. It suits professionals who prioritize data integrity over high gaming speeds.
Specifications side by side
| Spec | Samsung 32GB DDR4-2133 ECC Registered Memory | SK Hynix 32GB DDR4-2133 RDIMM |
|---|---|---|
| Total Capacity | 32GB | 32GB |
| Memory Speed | 2133 MHz | 2133 MHz |
| Module Configuration | 1x32GB | 1x32GB |
| Form Factor | not stated | U-DIMM |
| ECC Support | ECC REG | ECC RDIMM |
| Size | 32GB | 32GB |
| Dimensions | 5.25 × 0.15 × 1.23 inches | 5.25 × 0.16 × 1.21 inches |
| Weight | not stated | 1.12 ounces |
| Color | Black | not stated |
| Model | M393A4K40BB0-CPB4Y | HMA84GL7MMR4N-TF |
Frequently asked questions
Can I use these Samsung and SK Hynix DDR4 kits in a standard desktop PC?
No, these modules are not suitable for standard desktops. They are ECC Registered DIMMs designed for server workstations. Standard consumer motherboards typically do not support registered memory or error-correcting code features. You need a compatible enterprise or workstation motherboard to use these specific 32GB kits.
What is the main physical difference between the Samsung and SK Hynix modules?
The primary difference is their physical height and weight. The Samsung module measures 1.23 inches in height and lacks a listed weight. The SK Hynix module is slightly taller at 1.21 inches and weighs 1.12 ounces. Both share similar length and width dimensions, but the Samsung design is noted for its low-profile form factor.
Do both brands support error correction for data integrity?
Yes, both kits support ECC. The Samsung module is an ECC Registered DIMM, while the SK Hynix option is explicitly labeled as supporting ECC RDIMM technology. This feature helps detect and correct memory errors, which is critical for server environments where data accuracy is more important than high-speed gaming performance.
Which RAM kit is better for tight server chassis spaces?
The Samsung 32GB DDR4-2133 ECC REG is better for tight spaces. It features a low-profile design with a height of 1.23 inches. This compact profile allows for improved airflow in constrained chassis environments. The SK Hynix module is slightly taller, making the Samsung option the preferred choice for small form factor server builds.
Are these memory modules suitable for high-frequency gaming?
No, these modules are not ideal for high-frequency gaming. Both operate at a standard DDR4-2133 speed, which prioritizes stability over performance. They are designed for server administrators and professionals who value data integrity and reliability. If you need higher speeds for gaming, you should look for non-ECC, higher-frequency consumer memory kits.
What are the exact model numbers for these 32GB kits?
The Samsung kit uses the model number M393A4K40BB0-CPB4Y. The SK Hynix kit uses the model number HMA84GL7MMR4N-TF. Both models indicate 32GB capacity and DDR4-2133 specifications. These specific identifiers help you verify compatibility with your server hardware and ensure you are purchasing the correct registered memory modules for your system.