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ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU vs CORSAIR RM Series

Updated August 2026The CORSAIR RM Series offers superior features and performance, making it the better choice for high-performance systems, while the ESGAMING is a budget-friendly option.

The CORSAIR RM Series offers superior features and performance, making it the better choice for high-performance systems, while the ESGAMING is a budget-friendly option.

Why ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU is better

affordability

ESGAMING is priced at C$55.99, significantly cheaper than CORSAIR.

ease of installation

Non-modular design simplifies installation for basic setups.

quiet operation

Designed for virtually silent operation at low loads.

Why CORSAIR RM Series is better

modularity

Fully modular design allows for cleaner builds and better airflow.

cooling efficiency

140mm fan with zero RPM mode enhances cooling performance.

build quality

Industrial-grade capacitors ensure better reliability and longevity.

Overall score

ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU
65
CORSAIR RM Series
85

Specifications

SpecESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSUCORSAIR RM Series
ModularityNon-ModularFully Modular
Cooling Fan120mm140mm
ProtectionBasicAdvanced
Noise LevelLowVery Low
PriceC$55.99C$179.00

Dimension comparison

ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSUCORSAIR RM Series

Price Comparison

The ESGAMING 650W Non Modular Power Supply is priced at C$55.99, making it significantly more affordable than the CORSAIR RM Series, which retails for C$179.00. The price difference of C$123.01 highlights the budget-friendly nature of the ESGAMING option, making it an attractive choice for those looking to save on their power supply. However, the lower cost may come with trade-offs in features and performance, which will be explored in further sections.

Design and Build Quality

In terms of design, the ESGAMING power supply features a non-modular cable setup with all cables pre-installed, which can simplify installation for some users. Its black and flat design avoids the common “ketchup and mustard” coloured wires found in many budget PSUs. On the other hand, the CORSAIR RM Series boasts a fully modular design, allowing users to connect only the cables needed for their system. This modularity reduces cable clutter and can enhance airflow within the case. The build quality of the CORSAIR RM, supported by industrial-grade, 105°C-rated capacitors, suggests a longer lifespan and better performance under load compared to the more basic construction of the ESGAMING unit.

Cooling Performance

Cooling is a critical aspect of any power supply, and both units address this need effectively, albeit in different ways. The ESGAMING power supply incorporates a 120mm cooling fan designed for ultra-quiet operation, especially at low loads. This can contribute to a quieter overall system, making it ideal for users prioritizing noise levels. Conversely, the CORSAIR RM Series features a 140mm rifle bearing fan with a calculated fan curve that minimises noise even under full load, along with a zero RPM fan mode for silent operation during low to medium loads. The larger fan in the CORSAIR model may provide better cooling efficiency, particularly under heavy usage.

Compatibility

Compatibility is another essential factor when selecting a power supply. The ESGAMING 650W Non Modular Power Supply is designed with a standard ATX form factor and offers a variety of connectors, including an 8-pin CPU connector that can split into a 4+4 connector, and an 8-pin PCIe connector that can split into a 6+2 connector. This versatility allows for use with various hardware configurations, including legacy components. The CORSAIR RM Series takes compatibility a step further with triple EPS12V connectors, ensuring full compatibility with modern graphics cards and motherboards, which is crucial for users building high-performance systems.

Noise Levels

When it comes to noise levels, the ESGAMING power supply is designed for virtually silent operation at low loads. However, it does not provide additional features to manage noise under heavy load conditions. In contrast, the CORSAIR RM Series is engineered for quiet performance with its zero RPM fan mode, which means the fan will not spin at all during low to medium loads, further enhancing its silent operation. This feature can be particularly beneficial for gaming rigs where noise can be a distraction.

Protection Features

Safety is paramount when it comes to power supplies, and both models offer robust protection features. The ESGAMING 650W includes heavy-duty protections, such as Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Over Current Protection (OCP), and Over Temperature Protection (OTP). These features ensure maximum safety for the critical components of your system. The CORSAIR RM Series also offers high-level protection, but it is primarily known for its reliable performance and electrical efficiency, backed by premium components like 105°C-rated capacitors, which can further enhance its durability and safety.

User Experience and Installation

The installation process can be a significant factor for users, especially those who may not be as technically inclined. The ESGAMING, with its non-modular design, requires users to deal with all cables, which may lead to cable clutter in cases with limited space. However, for users looking for a straightforward setup, this could simplify the initial installation. The CORSAIR RM's fully modular design offers a more flexible installation experience, allowing users to connect only what is necessary, leading to a cleaner build and potentially improved airflow. This can greatly enhance user satisfaction, particularly for those who value aesthetics and ease of installation.

Which should you buy?

Choosing between the ESGAMING 650W Non Modular Power Supply and the CORSAIR RM Series ultimately depends on your specific needs and priorities. If budget is your primary concern, the ESGAMING offers an excellent entry-level price at C$55.99, making it perfect for casual users or those on a strict budget. However, if you are building a high-performance system and require greater reliability, modularity, and enhanced cooling capabilities, the CORSAIR RM Series, albeit at a higher price of C$179.00, justifies its cost with superior features and long-term benefits. Consider your system requirements, budget constraints, and personal preferences to make the best choice for your setup.

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ESGAMING 650W Non Modular Power Supply with Low-Noise 120mm Fan ATX PSU vs CORSAIR RM Series | versusfinder