Corsair CMSO16GX4M2A2133C15 Value Select 16 GB DDR4 Up to 2133 MHz CL 15 260 Pin vs PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit
Updated August 2026 — The Corsair CMSO16GX4M2A2133C15 offers superior performance and brand reputation, while the PC3 PC3L 12800U is more budget-friendly and compatible with more systems.
The Corsair CMSO16GX4M2A2133C15 offers superior performance and brand reputation, while the PC3 PC3L 12800U is more budget-friendly and compatible with more systems.
Why Corsair CMSO16GX4M2A2133C15 Value Select 16 GB DDR4 Up to 2133 MHz CL 15 260 Pin is better
performance
Corsair operates at 2133 MHz vs 1600 MHz for PC3
brand reputation
Corsair is a well-known brand in memory products
efficiency
Corsair has better speed for demanding applications
Why PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit is better
price
PC3 is significantly cheaper at £36.99
compatibility
PC3 supports more motherboards with 240-pin design
warranty
PC3 offers a lifetime warranty and support
Overall score
Specifications
| Spec | Corsair CMSO16GX4M2A2133C15 Value Select 16 GB DDR4 Up to 2133 MHz CL 15 260 Pin | PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit |
|---|---|---|
| Brand | Corsair | motoeagle |
| Type | DDR4 | DDR3 |
| Capacity | 16 GB | 16 GB |
| Latency | CL 15 | N/A |
| Form Factor | SO-DIMM 260 | UDIMM 240 |
Dimension comparison
Price Comparison
When it comes to price, the PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit is significantly more affordable than the Corsair CMSO16GX4M2A2133C15 Value Select. At £36.99, the DDR3 option is nearly £90 less than the DDR4 model, which retails for £126.78. This price difference of £89.79 makes the DDR3 kit an attractive option for budget-conscious consumers looking to upgrade their memory without breaking the bank. However, the lower price comes with trade-offs that may affect performance, which we will explore further in this comparison.
Performance Capabilities
The Corsair CMSO16GX4M2A2133C15 offers superior performance capabilities compared to the PC3 PC3L 12800U. Operating at up to 2133 MHz with CL 15 latency, it provides better speed and efficiency, especially when overclocked. In contrast, the PC3 PC3L 12800U operates at 1600 MHz, which is 25% slower than the Corsair model. This difference in speed can lead to noticeable performance disparities, especially in demanding applications like gaming or video editing, where faster memory can enhance system responsiveness and multitasking capabilities.
Compatibility and Installation
The PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit boasts superior compatibility, supporting a variety of motherboards with its 240-pin design. It operates at both 1.35V and 1.5V, making it adaptable for different systems. Meanwhile, the Corsair CMSO16GX4M2A2133C15 is a SO-DIMM 260 pin module, which is specifically designed for laptops and compact systems. While both products aim for ease of installation, the broader compatibility of the DDR3 kit makes it a versatile choice for various builds, whereas the Corsair model may be limited to specific setups.
Build Quality and Reliability
In terms of build quality, the PC3 PC3L 12800U emphasises reliability with all chips being 100% tested and compliant with RoHS and JEDEC standards. This commitment to quality ensures that users receive a dependable product that meets industry standards. On the other hand, while the Corsair CMSO16GX4M2A2133C15 does not specify testing details, Corsair is known for its high-quality components, which generally inspire confidence among users. However, the explicit testing claims of the Motoeagle product may provide additional peace of mind for potential buyers prioritising reliability.
Power Consumption
The PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit operates at a low voltage of 1.35V, which can contribute to reduced power consumption and potentially longer battery life in portable devices. This characteristic makes it an appealing choice for users concerned about energy efficiency. The Corsair CMSO16GX4M2A2133C15, running at 1.2V, is also energy-efficient, but the difference in operating voltage is minimal when comparing the two. Ultimately, both options offer low power consumption, yet the PC3 model edges slightly ahead in this category, especially for users of laptops.
User Experience and Support
The PC3 PC3L 12800U comes with a lifetime warranty and toll-free technical support, which can significantly enhance the user experience and provide assurance to customers. This level of support is particularly valuable for those who may encounter issues during installation or operation. In contrast, the Corsair CMSO16GX4M2A2133C15 does not mention any specific customer support options, which may leave users without adequate assistance should problems arise. This difference in support could be a deciding factor for users who value ongoing assistance and warranty coverage in their purchasing decisions.
Brand Reputation
Corsair is widely recognised as a leading brand in the memory market, known for its high-performance products and commitment to quality. The Corsair CMSO16GX4M2A2133C15 benefits from this strong reputation, which may influence buyers looking for reliability and performance. Conversely, the PC3 PC3L 12800U, produced by Motoeagle, does not carry the same level of brand recognition. While Motoeagle claims to source its chips from reputable manufacturers, the lesser-known brand might cause hesitation for some consumers when considering long-term performance and reliability.
Which should you buy?
Ultimately, the choice between the Corsair CMSO16GX4M2A2133C15 Value Select and the PC3 PC3L 12800U DDR3 DDR3L 1600 MHz 16GB Kit hinges on your specific needs and budget. If you require high-performance memory for demanding applications and are willing to invest, the Corsair model is the superior option, offering faster speeds and efficiency. However, if budget constraints are a primary concern and compatibility with various systems is essential, the Motoeagle DDR3 kit provides excellent value for its price. Consider your system requirements and how you plan to use the memory to make the most informed decision.
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