Samsung M323R2GA3BB0-CQK 16GB DDR5-4800 PC5-38400 vs Samsung 16GB DDR5 5600MHz SODIMM: Spec Comparison
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You are comparing the samsung m323r2ga3bb0 cqk 16gb ddr5 4800 pc5 38400 vs 16gb ddr5 5600mhz. Both modules offer 16GB of non-ECC DDR5 memory from Samsung. They differ significantly in form factor and speed. The first is a desktop UDIMM running at 4800MHz. The second is a laptop SODIMM running at 5600MHz. You must match the module to your specific device type to ensure compatibility.
Key differences
| Aspect | Samsung 16GB DDR5 4800MHz UDIMM | Samsung 16GB DDR5 5600MHz SODIMM RAM |
|---|---|---|
| Form Factor | UDIMM (Desktop) | SODIMM (Laptop) |
| Memory Speed | 4800MHz | 5600MHz |
| Compatible Device | Desktop | Laptop |
| Voltage | not listed | 1.1V |
| CAS Latency | not listed | CL46 |
Which one should you choose?
Choose Samsung 16GB DDR5 4800MHz UDIMM if
- You need RAM for a desktop computer
- You prefer the standard UDIMM form factor
- You are upgrading a desktop system
Choose Samsung 16GB DDR5 5600MHz SODIMM RAM if
- You need RAM for a laptop or notebook
- You want the faster 5600MHz speed
- You require the 262-pin SODIMM format
Verdict: Choose the first module if you are upgrading a desktop PC, as it is the correct UDIMM form factor. Choose the second module if you are upgrading a laptop, as it is the correct SODIMM form factor. The speed difference is secondary to ensuring the physical module fits your device.
Speed and Form Factor Comparison
Memory Speed
The Samsung 16GB DDR5 5600MHz SODIMM operates at 5600MHz, while the Samsung 16GB DDR5 4800MHz UDIMM runs at 4800MHz. Higher frequency generally allows for faster data transfer rates between the memory and the processor. The 5600MHz module offers a significant bandwidth advantage over the 4800MHz option. This difference is measurable in synthetic benchmarks and can impact performance in memory-intensive tasks. You get more throughput with the faster clock speed, assuming your system supports it. The 4800MHz module is stable and reliable for standard desktop operations, but the 5600MHz module provides superior raw speed potential for compatible platforms.
Compatible Device
Form factor dictates where you can install these modules. The Samsung 16GB DDR5 4800MHz UDIMM is designed for desktop computers. It fits into standard desktop motherboard slots. The Samsung 16GB DDR5 5600MHz SODIMM is built for laptops and notebooks. It uses a smaller 262-pin connector. You cannot install the SODIMM in a desktop tower, and the UDIMM will not fit in a laptop. This is a hard hardware constraint. Choose the UDIMM if you are building or upgrading a desktop PC. Select the SODIMM if you are expanding memory in a portable computer. Compatibility is strictly determined by your device type.
CAS Latency
Latency affects how quickly the memory responds to commands from the CPU. The Samsung 16GB DDR5 5600MHz SODIMM lists a CAS Latency of CL46. The specifications for the Samsung 16GB DDR5 4800MHz UDIMM do not explicitly state the CAS Latency value. While higher MHz often correlates with higher latency numbers, the absolute latency in nanoseconds depends on both speed and CL. Without the CL value for the 4800MHz module, a direct comparison is incomplete. However, the 5600MHz module provides a known timing spec. You should check the detailed timing for the UDIMM if latency is your primary concern for gaming or low-latency applications.
Voltage
Power efficiency and electrical requirements differ between the two modules. The Samsung 16GB DDR5 5600MHz SODIMM operates at a standard DDR5 voltage of 1.1V. This is the JEDEC standard for DDR5 memory. The specifications for the Samsung 16GB DDR5 4800MHz UDIMM do not list the operating voltage. Most DDR5 UDIMMs also run at 1.1V, but this is not confirmed in the provided data. Lower voltage can contribute to slightly reduced power consumption and heat generation. The SODIMM explicitly states its 1.1V requirement, ensuring compatibility with laptop power management systems. The UDIMM voltage remains an unverified variable in this comparison.
ECC Support
Error Correction Code (ECC) memory detects and corrects data corruption, which is vital for servers and workstations. Both modules are specified as Non-ECC. The Samsung 16GB DDR5 4800MHz UDIMM is listed as Non-ECC Unbuffered. The Samsung 16GB DDR5 5600MHz SODIMM is also Non-ECC Unbuffered. Neither module provides the error correction features found in server-grade RAM. This makes both suitable for consumer desktops and laptops where ECC is not required. You save cost by choosing Non-ECC modules, as ECC chips are more expensive. For standard gaming and general computing, the lack of ECC is standard and does not impact everyday stability.
Rank Configuration
Rank configuration influences how memory controllers access data. The Samsung 16GB DDR5 5600MHz SODIMM is a Single Rank (1Rx8) module. This means all memory chips on the module are addressed in one group. The specifications for the Samsung 16GB DDR5 4800MHz UDIMM do not specify its rank configuration. Single rank modules can sometimes offer slightly better performance in certain workloads due to lower electrical load on the memory controller. Dual rank modules offer higher capacity density. Knowing the rank helps in predicting compatibility with specific motherboards. The SODIMM provides this detail, while the UDIMM leaves it undefined.
Which RAM kit fits your device best
Desktop PC owner needing standard memory
You need a UDIMM for your desktop computer. This module runs at 4800MHz with non-ECC support. It fits standard desktop slots. The size matches typical desktop requirements. Choose this for reliable desktop performance without needing laptop-specific parts.
Laptop user seeking faster speeds
You require a SODIMM for your laptop. This module runs at 5600MHz, offering higher bandwidth. It uses 1.1V voltage and CL46 latency. The 262-pin form factor fits notebook slots. Pick this for improved laptop speed and compatibility.
Buyer prioritizing maximum transfer rate
You want the fastest data transfer available. This SODIMM operates at 5600MHz, beating the 4800MHz desktop option. The PC5-44800 rating indicates superior throughput. If your device supports it, this speed reduces bottlenecks. Select this for peak performance metrics.
The products compared
Samsung 16GB DDR5 4800MHz UDIMM
Best for: Standard desktop DDR5 upgrades
- Capacity
- 16 GB
- Memory Speed
- 4800 MHz
- Kit Configuration
- 1x16GB
- Form Factor
- UDIMM
- ECC Support
- Non-ECC
- Compatible Device
- Desktop
View on Amazon: Samsung 16GB DDR5 4800MHz UDIMM Affiliate link
This Samsung module is a 16GB DDR5 memory stick designed for desktop computers. It runs at 4800MHz with a PC5-38400 rating. The UDIMM form factor fits standard desktop motherboards. It uses non-ECC technology, which is standard for consumer PCs. The module operates at 1.1V. It is a single-rank stick. This fits users who need reliable basic desktop memory without needing higher speeds or error correction.
Pros
- 16GB capacity for multitasking
- DDR5-4800 speed for modern desktops
- UDIMM form factor for standard desktops
- Non-ECC design for consumer use
Cons
- Lower 4800MHz speed compared to 5600MHz alternatives
- Single rank configuration limits some performance
- No ECC support for error correction
Good fit if
- You need standard DDR5 memory for a desktop PC
- You prioritize capacity over maximum speed
- You want a reliable consumer-grade module
Skip if
- You require high-speed DDR5-5600MHz or faster
- You need ECC memory for professional workstations
- You are building a laptop with SODIMM slots
Verdict: Samsung 16GB DDR5-4800 UDIMM is a solid choice for standard desktop builds that do not require high-speed overclocking. It suits users who value stable, mainstream performance over maximum frequency.
Samsung 16GB DDR5 5600MHz SODIMM RAM
Best for: Laptop memory upgrades requiring 5600MHz speed
- Capacity
- 16GB
- Memory Speed
- 5600MHz
- CAS Latency
- CL46
- Kit Configuration
- Single 16 GB Module
- Form Factor
- 262-Pin SODIMM
- Voltage
- 1.1V
View on Amazon: Samsung 16GB DDR5 5600MHz SODIMM RAM Affiliate link
This Samsung module is a single 16GB DDR5 SODIMM designed for laptops. It runs at 5600MHz with a CL46 latency and operates at 1.1V. The 262-pin non-ECC unbuffered design fits standard notebook slots. You get a 1Rx8 configuration that expands system memory to reduce bottlenecks. It is a straightforward upgrade for compatible portable computers needing faster data throughput.
Pros
- 5600MHz memory speed for improved performance
- 16GB single module capacity
- 1.1V low voltage operation
- 262-pin SODIMM form factor
Cons
- CL46 latency is higher than faster DDR5 kits
- Only includes a single 16GB module, not a dual-channel kit
- Non-ECC specification limits use in servers or workstations
Good fit if
- You need a single 16GB stick for a laptop upgrade
- Your laptop supports DDR5-5600 speeds
- You want a standard JEDEC voltage module
Skip if
- You require ECC memory for data integrity
- You need a dual-channel kit with two sticks
- Your system only supports DDR4 speeds
Verdict: Samsung 16GB DDR5 5600MHz Laptop RAM is a solid choice for laptop owners who need a single high-speed upgrade module. It fits users who prioritize speed over latency in portable systems.
Specifications side by side
| Spec | Samsung 16GB DDR5 4800MHz UDIMM | Samsung 16GB DDR5 5600MHz SODIMM RAM |
|---|---|---|
| Capacity | 16 GB | 16GB |
| Memory Speed | 4800 MHz | 5600MHz |
| CAS Latency | not stated | CL46 |
| Kit Configuration | 1x16GB | Single 16 GB Module |
| Form Factor | UDIMM | 262-Pin SODIMM |
| Voltage | not stated | 1.1V |
| ECC Support | Non-ECC | NON-ECC Unbuffered |
| Compatible Device | Desktop | Laptop |
| Size | 16GB | 16GB |
| Dimensions | 0.1 × 6 × 1 inches | 2.74 × 1.18 × 0.15 inches |
| Weight | 0.6 ounces | not stated |
| Color | Black | 1 Module |
| Model | M323R2GA3BB0-CQK | M425R2GA3BB0-CWM |
Frequently asked questions
Can I use the Samsung 16GB DDR5 5600MHz SODIMM in my desktop computer?
No. The 5600MHz module uses a SODIMM form factor. Desktop computers require UDIMM modules. The first product in this comparison is a UDIMM. It fits standard desktop slots. The SODIMM is designed for laptops. You cannot physically install it in a desktop motherboard.
Does the Samsung M323R2GA3BB0-CQK support ECC?
No. This module is non-ECC. It does not include error-correcting code features. This is standard for most consumer desktop systems. It is suitable for standard upgrades where maximum stability is not the primary concern. It fits mainstream desktop builds well.
What is the difference in physical size between these two RAM sticks?
The UDIMM is much larger. It measures 6 inches in length. The SODIMM is compact at 2.74 inches long. The UDIMM also weighs 0.6 ounces. The SODIMM is lighter and smaller. This reflects their different use cases for desktops versus laptops.
Is the 5600MHz RAM better for gaming than the 4800MHz version?
It depends on your device. The 5600MHz module offers higher speed. This can improve data transfer rates in compatible systems. However, it is a SODIMM for laptops. The 4800MHz UDIMM is for desktops. You must choose based on your computer type first.
Can I mix these two Samsung memory modules in a single system?
No. They have different form factors. One is a UDIMM for desktops. The other is a SODIMM for laptops. They will not fit into the same slots. They also run at different speeds. You should match your RAM to your specific device type.
What model number should I look for for a desktop upgrade?
Look for the M323R2GA3BB0-CQK. This is the model for the Samsung 16GB DDR5 4800MHz UDIMM. It is designed for desktop computers. It provides stable performance for standard builds. The other model, M425R2GA3BB0-CWM, is for laptops.
Does the 5600MHz SODIMM come in a single module?
Yes. The product data lists it as a single module. It is a 16GB stick. This is typical for laptop upgrades. You install one stick per slot. It fits into the smaller SODIMM slots found in portable computers.

