Samsung 16GB DDR5 4800MHz UDIMM vs Samsung 16GB DDR5 5600MHz SODIMM (2026): Key Differences
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You are comparing the samsung 16gb ddr5 4800mhz udimm vs 16gb ddr5 5600mhz sodimm. Both modules offer 16GB of non-ECC DDR5 memory from Samsung. They differ in form factor and speed. One is a desktop UDIMM running at 4800MHz. The other is a laptop SODIMM running at 5600MHz. Your choice depends on your device type and required performance tier.
Key differences
| Aspect | Samsung 16GB DDR5 4800MHz UDIMM | Samsung 16GB DDR5 5600MHz SODIMM |
|---|---|---|
| Compatible Device | Desktop | Laptop |
| Form Factor | UDIMM | SODIMM |
| Memory Speed | 4800MHz | 5600MHz |
| Cas Latency | not listed | CL46 |
| Voltage | not listed | 1.1V |
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.
- Your system specifications require 4800MHz memory.
Choose Samsung 16GB DDR5 5600MHz SODIMM if
- You need RAM for a laptop or notebook.
- You want higher memory speed at 5600MHz.
- You require the smaller SODIMM form factor.
Verdict: Choose the UDIMM if you are upgrading a desktop PC. Choose the SODIMM if you are upgrading a laptop. The SODIMM offers higher speed, but the UDIMM is the correct physical fit for desktops.
DDR5 Desktop Versus Laptop Specs
Memory Speed
The Samsung 16GB DDR5 5600MHz SODIMM offers a higher base clock speed than the Samsung 16GB DDR5 4800MHz UDIMM. The laptop module runs at 5600MHz, which corresponds to a PC5-44800 bandwidth rating. The desktop module operates at 4800MHz, rated at PC5-38400. Higher MHz generally allows for faster data transfer rates between the memory and the processor. If your system supports the higher frequency, the SODIMM provides a measurable performance head start in bandwidth-heavy tasks. The UDIMM is sufficient for standard desktop operations but moves data more slowly.
Compatible Device
These modules are designed for entirely different types of computers. The Samsung 16GB DDR5 4800MHz UDIMM is explicitly listed as compatible with desktop devices. It fits into standard desktop motherboards. The Samsung 16GB DDR5 5600MHz SODIMM is designed for select laptop and notebook computers. You cannot install the SODIMM in a standard desktop slot, nor the UDIMM in a laptop. Choosing the wrong form factor means the RAM will not fit physically or electrically. Your choice depends entirely on whether you are building or upgrading a desktop PC or a portable laptop.
Form Factor
The physical shape and pin count differ significantly between the two kits. The UDIMM is a full-sized module measuring six inches in length. It uses the standard desktop footprint. The SODIMM is a small-outline module, measuring only 2.74 inches in length. It features 262 pins designed for compact spaces. The SODIMM is also thinner, standing 0.15 inches high compared to the UDIMM. These physical differences ensure they go into the correct slots. You must match the form factor to your motherboard or laptop’s memory slots to ensure compatibility.
Voltage
Power consumption and operating voltage are key specifications for DDR5 memory. The Samsung 16GB DDR5 5600MHz SODIMM operates at a standard JEDEC DDR5 voltage of 1.1V. This is the standard voltage for this generation of memory. The data for the Samsung 16GB DDR5 4800MHz UDIMM does not explicitly list its operating voltage. While DDR5 modules typically use 1.1V, the absence of this specific data point for the desktop module means you cannot confirm its exact voltage from the provided specifications. Both are low-voltage compared to older DDR4 standards.
Cas Latency
Cas latency indicates the delay before data is available after a command. The Samsung 16GB DDR5 5600MHz SODIMM lists a Cas Latency of CL46. This is a standard latency value for this speed class. The data for the Samsung 16GB DDR5 4800MHz UDIMM does not provide a specific Cas Latency number. Without this value, you cannot directly compare the timing responsiveness of the two modules. Generally, lower latency is better for responsiveness, but the missing data for the UDIMM prevents a definitive comparison on this specific metric.
Choose the right Samsung DDR5 kit
Desktop PC builder needing standard RAM
You need a UDIMM for your desktop motherboard. This module uses the standard 6-inch length and 262-pin configuration for desktop slots. It runs at 4800MHz with 1.1V power. The Non-ECC design fits standard consumer systems. Choose this if you are upgrading a desktop computer rather than a portable device.
Laptop owner seeking faster memory
You require a SODIMM for your laptop or notebook. This module is smaller, measuring 2.74 inches long, to fit compact chassis. It offers 5600MHz speed, which exceeds the desktop option. The 262-pin layout matches laptop memory slots. Select this kit to improve performance in portable Samsung devices.
User wanting higher bandwidth for tasks
You prioritize speed over form factor compatibility. This SODIMM runs at 5600MHz, providing higher bandwidth than the 4800MHz desktop stick. The PC5-44800 rating supports heavier workloads. If your device accepts SODIMMs, this choice delivers better data transfer rates. It helps reduce bottlenecks in memory-intensive applications.
The products compared
Samsung 16GB DDR5 4800MHz UDIMM
Best for: Standard desktop PCs needing reliable DDR5 memory
- 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 is a Samsung 16GB DDR5 UDIMM designed for desktop computers. It runs at 4800MHz and uses 1.1V power. The module is non-ECC and unbuffered, making it standard for general use. It fits in standard desktop slots. This kit suits users who need reliable, entry-level DDR5 memory for everyday tasks or basic gaming without needing high-speed overclocking.
Pros
- 16GB capacity for multitasking
- DDR5 4800MHz speed
- Standard UDIMM form factor
- Low 1.1V power consumption
Cons
- Slower 4800MHz speed compared to 5600MHz options
- Non-ECC memory lacks error correction
- Single rank configuration limits bandwidth potential
Good fit if
- You need standard desktop memory
- You prioritize stability over speed
- You are building a budget DDR5 PC
Skip if
- You require high-speed 5600MHz performance
- You need ECC error correction
- You are using a laptop with SODIMM slots
Verdict: Samsung 16GB DDR5 4800MHz Desktop RAM is a solid choice for standard desktop builds that do not require high-speed performance or error correction.
Samsung 16GB DDR5 5600MHz SODIMM
Best for: laptop memory upgrades requiring high speed
- Capacity
- 16 GB
- Memory Speed
- 5600 MHz
- CAS Latency
- CL46
- Kit Configuration
- 1x16GB
- Form Factor
- 262-Pin SODIMM
- Voltage
- 1.1 V
View on Amazon: Samsung 16GB DDR5 5600MHz SODIMM Affiliate link
This Samsung module is a 16GB DDR5 SODIMM designed for laptops and notebooks. It runs at 5600MHz with PC5-44800 speed and uses 1.1V. The 262-pin, single-rank design fits standard laptop slots. It helps reduce bottlenecks and expands memory resources for better workload capacity. You should choose this if you need a compact, high-speed upgrade for portable computing.
Pros
- DDR5 speed up to 5600MHz for fast data transfer
- Compact 262-pin SODIMM form factor for laptops
- Low 1.1V power consumption for efficiency
- 16GB capacity expands system memory resources
Cons
- Only 16GB capacity, which may be insufficient for heavy multitasking
- Non-ECC memory lacks error correction for critical data integrity
- Limited to laptop compatibility, not suitable for desktops
Good fit if
- You are upgrading a laptop that supports DDR5 SODIMMs
- You need higher speed than standard 4800MHz modules
- You want a reliable, JEDEC-standard memory upgrade
Skip if
- You are building or upgrading a desktop computer
- You require error-correcting code (ECC) memory
- You need more than 16GB of RAM in a single stick
Verdict: Samsung 16GB DDR5 5600MHz SODIMM is a solid choice for laptop users seeking faster memory speeds. It fits well for those prioritizing portability and performance in a compact form factor.
Specifications side by side
| Spec | Samsung 16GB DDR5 4800MHz UDIMM | Samsung 16GB DDR5 5600MHz SODIMM |
|---|---|---|
| Capacity | 16 GB | 16 GB |
| Memory Speed | 4800 MHz | 5600 MHz |
| CAS Latency | not stated | CL46 |
| Kit Configuration | 1x16GB | 1x16GB |
| Form Factor | UDIMM | 262-Pin SODIMM |
| Voltage | not stated | 1.1 V |
| ECC Support | Non-ECC | Non-ECC |
| Compatible Device | Desktop | Laptop |
| Size | 16GB | 16GB |
| Dimensions | 0.1 × 6 × 1 inches | 2.74 × 1.18 × 0.15 inches |
| Weight | 0.6 ounces | 5 ounces |
| Color | Black | Multicolor |
| Model | M323R2GA3BB0-CQK | M425R2GA3PB0-CWM |
Frequently asked questions
Can I install a 16GB DDR5 5600MHz SODIMM in my desktop computer?
No, you cannot use a SODIMM in a standard desktop PC. The 5600MHz module is a Small Outline DIMM designed for laptops. It is physically smaller, measuring 2.74 inches in length. Desktop motherboards require the larger 6-inch UDIMM format found in the other Samsung kit.
Will the Samsung 16GB DDR5 4800MHz UDIMM fit in my laptop?
No, this UDIMM is not compatible with laptops. It is a 6-inch long module built for desktop computer slots. Laptop memory slots are designed for the compact SODIMM form factor. You must choose the 5600MHz SODIMM version for portable devices.
Is the 5600MHz speed significantly faster than 4800MHz for everyday tasks?
The 5600MHz module offers higher bandwidth than the 4800MHz version. This corresponds to a PC5-44800 rating versus a lower rating for the desktop stick. For most standard desktop applications, the difference is subtle. However, the laptop module provides a speed advantage for intensive mobile workloads.
Do these Samsung memory sticks support ECC for error correction?
No, neither module supports Error Correction Code. Both the 4800MHz UDIMM and the 5600MHz SODIMM are Non-ECC variants. They are designed for consumer desktops and laptops. If you need error correction for servers or workstations, you must look for specific ECC-rated DDR5 kits.
What is the physical weight difference between the two RAM modules?
The laptop SODIMM is heavier than the desktop UDIMM. The 5600MHz SODIMM weighs 5 ounces. The 4800MHz UDIMM weighs only 0.6 ounces. This difference is due to the packaging and internal component density. The desktop stick is also significantly longer and wider.
Can I mix these two Samsung DDR5 modules in the same system?
You cannot mix these modules in a single system. They use different form factors: UDIMM for desktops and SODIMM for laptops. Motherboards and laptops have specific slots for only one type. You must match the module to your device's physical memory slot requirements.