ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs Cooler Master MWE 850 V2 Full Modular PSU, 850W,
Updated August 2026 — ASRock PRO-650G Power Supply - 650W 80 Plus Gold wins on efficiency and warranty, Cooler Master MWE 850 V2 Full Modular PSU, 850W, wins on modularity and cooling.
The ASRock PRO-650G is a cost-effective choice for mid-range systems, while the Cooler Master MWE 850 V2 is ideal for high-performance builds. Choose based on your power needs.
Why ASRock PRO-650G Power Supply - 650W 80 Plus Gold is better
lower price
ASRock PRO-650G costs $49.99
sufficient for mid-range
650W is adequate for most mid-range systems
durable capacitors
uses all-Taiwanese capacitors for longevity
Why Cooler Master MWE 850 V2 Full Modular PSU, 850W, is better
higher wattage
850W supports high-end components
fully modular
modular design reduces clutter and improves airflow
better cooling
hydro dynamic fan minimizes noise and friction
Overall score
Specifications
| Spec | ASRock PRO-650G Power Supply - 650W 80 Plus Gold | Cooler Master MWE 850 V2 Full Modular PSU, 850W, |
|---|---|---|
| Certification | 80 PLUS Gold | 80 PLUS Gold |
| Fan Size | 120mm | 120mm |
| Modularity | Non-Modular | Fully Modular |
| EPS Connectors | None | 2 |
| Cooling Type | Standard Fan | Hydro Dynamic Fan |
Dimension comparison
Overview of the ASRock PRO-650G and Cooler Master MWE 850 V2
The ASRock PRO-650G is priced at $49.99, while the Cooler Master MWE 850 V2 is available for $95.09. This makes the ASRock model about 17% cheaper than its competitor. Both power supplies boast 80 PLUS Gold certification, ensuring high energy efficiency levels, but they cater to different power needs and user bases. The ASRock model is ideal for mid-range systems, while the Cooler Master unit is suited for higher-performance builds, especially those requiring more wattage.
Power Output Comparison
The ASRock PRO-650G provides a power output of 650W, which is sufficient for most mid-range gaming and productivity setups. In contrast, the Cooler Master MWE 850 V2 offers a higher output of 850W, making it a better choice for high-end systems, particularly those with demanding components like the Nvidia RTX 5080. The ability to supply 850W means the Cooler Master can support more components or higher performance configurations without risk of power shortfalls.
Efficiency Ratings
Both power supplies have achieved 80 PLUS Gold certification, indicating they operate at an energy efficiency of up to 90%. This level of efficiency reduces power consumption and heat output, making both models cost-effective options for users. However, the ASRock PRO-650G, with its slightly lower wattage, might be more appealing for users who do not need maximum power and prefer to save on costs, while the Cooler Master MWE 850 V2 offers the same efficiency at a higher capacity.
Build Quality and Design
The ASRock PRO-650G is constructed with all-Taiwanese capacitors, which are known for their durability and longevity. It features a quiet 120mm fan that balances performance with noise levels. The flat cable design aids in easier cable management and improved airflow within the case. On the other hand, the Cooler Master MWE 850 V2 also emphasizes build quality with fully modular flat cables that reduce clutter and enhance airflow. Its hydro dynamic fan is designed for low friction, enabling smoother operation and reduced noise, which is a significant advantage for users looking for quiet performance.
Cooling Solutions
Cooling solutions play a crucial role in the longevity and performance of power supplies. The ASRock PRO-650G includes a 120mm fan, which is optimized for low noise during operation, ensuring that it doesn't disrupt the user's experience. The Cooler Master MWE 850 V2 also features a 120mm hydro dynamic fan that minimizes friction for quieter performance and operates efficiently even under higher loads. This makes the Cooler Master an excellent option for users seeking an efficient cooling solution in high-performance builds.
Compatibility and Connectivity
The ASRock PRO-650G is ATX 3.1 compatible, ensuring it can support modern components seamlessly. It provides a stable 12V output with 54.1A on the +12V rail, which is adequate for most mid-range systems. Meanwhile, the Cooler Master MWE 850 V2 includes two EPS connectors, enhancing its compatibility with current generation motherboards. This makes it particularly beneficial for users planning to integrate high-end components that require robust power delivery.
Warranty and Support
The ASRock PRO-650G comes with a 3-year warranty, providing users with peace of mind regarding its reliability and manufacturer support. This warranty is standard in the industry and reflects confidence in the product's durability. The Cooler Master MWE 850 V2 also offers a solid warranty, which adds to its value proposition, especially given its higher price tag. Having reliable manufacturer support is essential for users investing in power supplies for critical systems.
Which should you buy?
Choosing between the ASRock PRO-650G and the Cooler Master MWE 850 V2 ultimately depends on your specific needs. If you are looking for an economical option with a price point of $49.99 and sufficient power for mid-range systems, the ASRock PRO-650G is an excellent choice. Its efficient design and durable build make it a reliable option for everyday use. Conversely, if you require a higher power output for demanding setups, the Cooler Master MWE 850 V2, priced at $95.09, is worth the investment. Its modular design and enhanced cooling capabilities cater well to high-performance builds. Ultimately, assess your power requirements, budget, and desired features to make the best decision for your system.

