ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs Cooler Master V750 SFX Gold 750W Fully Modular
Updated August 2026 — Cooler Master V750 SFX Gold 750W Fully Modular leads on modularity and warranty.
The ASRock PRO-650G is a budget-friendly option for mid-range systems, while the Cooler Master V750 SFX Gold excels in high-performance compact builds. Choose based on your specific needs.
Why ASRock PRO-650G Power Supply - 650W 80 Plus Gold is better
Price
ASRock is significantly cheaper at $49.99.
Standard Size
Fits most PC cases with standard ATX form factor.
Cooling
Larger 120mm fan may provide better airflow.
Why Cooler Master V750 SFX Gold 750W Fully Modular is better
Power Output
Cooler Master offers 750W compared to ASRock's 650W.
Modularity
Fully modular design allows for better cable management.
Warranty
Cooler Master has a 10-year warranty versus ASRock's 3-year.
Overall score
Specifications
| Spec | ASRock PRO-650G Power Supply - 650W 80 Plus Gold | Cooler Master V750 SFX Gold 750W Fully Modular |
|---|---|---|
| Certification | 80 PLUS Gold | 80 PLUS Gold |
| Form Factor | ATX | SFX |
| Cooling Type | 120mm Fan | 92mm FDB Fan |
| Cable Type | Flat Cables | Fully Modular |
| Max GPU Power | N/A | 450W |
Dimension comparison
Overview of the Power Supplies
When comparing the ASRock PRO-650G Power Supply and the Cooler Master V750 SFX Gold, price, efficiency, and design are key points of differentiation. The ASRock PRO-650G is priced at $49.99, making it about 69% cheaper than the Cooler Master V750 SFX Gold, which costs $161.80. This substantial price gap reflects a difference in target markets and features, with the ASRock model catering to budget-conscious users and the Cooler Master unit aimed at high-performance mini-ITX builds.
Power Output and Efficiency
The ASRock PRO-650G offers a power output of 650W with an 80 PLUS Gold certification, ensuring up to 90% efficiency in energy usage. This makes it a strong contender for mid-range gaming and productivity systems. In contrast, the Cooler Master V750 SFX Gold provides a slightly higher output of 750W, also with 80 PLUS Gold certification. Both power supplies promise effective power transfer; however, the Cooler Master unit is optimized for high-performance systems, particularly due to its ability to deliver up to 450W to the GPU alone, making it ideal for demanding applications.
Design and Form Factor
In terms of design, the ASRock PRO-650G adheres to a standard ATX form factor, which fits most PC cases, measuring 140x150x86mm. This makes it suitable for users who want a straightforward installation in traditional setups. On the other hand, the Cooler Master V750 SFX Gold is designed for mini-ITX builds, featuring a compact SFX design. This smaller form factor allows for flexibility in tighter spaces, catering to users with smaller cases. The unique 90° angled cable design of the Cooler Master also enhances electrical durability and safety, which is a thoughtful feature for compact builds.
Cooling and Noise Levels
Cooling is crucial for maintaining performance, and both power supplies have their approaches. The ASRock PRO-650G features a quiet 120mm fan that balances cooling with low noise levels during operation. This is beneficial for users who prioritize a quiet computing environment. Conversely, the Cooler Master V750 SFX Gold utilizes a 92mm Fluid Dynamic Bearing fan, known for its reliability and low maintenance. While both fans are designed to keep temperatures down, the ASRock's larger fan may provide a slight edge in airflow, whereas the Cooler Master's design focuses on compact efficiency.
Cable Management
Cable management plays a significant role in system aesthetics and airflow. The ASRock PRO-650G includes flat cables that simplify installation and improve airflow within the case. This feature is particularly advantageous for users who want to maintain a clean build. In contrast, the Cooler Master V750 SFX Gold is fully modular, allowing users to connect only the cables they need. This modularity significantly reduces clutter, especially in mini-ITX cases where space is at a premium. The customized short cables of the Cooler Master unit are specifically designed to minimize excess length, enhancing overall system organization.
Warranty and Support
Warranty offerings can influence purchasing decisions, and here, the Cooler Master V750 SFX Gold stands out with a remarkable 10-year warranty. This extensive coverage reflects the brand's confidence in the product's durability and reliability. On the other hand, the ASRock PRO-650G comes with a 3-year warranty, which, while still reasonable, is substantially shorter. For users who prioritize long-term support and assurance, the Cooler Master’s warranty provides peace of mind that is hard to overlook.
Ideal User Scenarios
The ASRock PRO-650G Power Supply is ideal for budget-conscious users and those building mid-range systems. Its affordability and sufficient power output make it a rational choice for everyday gaming and productivity. In contrast, the Cooler Master V750 SFX Gold is tailored for high-performance enthusiasts who require a reliable power supply in compact builds. The additional power headroom and modular design make it perfect for gamers and professionals who demand top-tier performance in smaller cases.
Which should you buy?
In summary, your choice between the ASRock PRO-650G and the Cooler Master V750 SFX Gold largely depends on your specific needs and budget. If you are looking for an affordable power supply that provides solid performance for mid-range systems, the ASRock PRO-650G at $49.99 is a fantastic option. However, if you require a high-capacity, compact power supply with modular cabling and a long warranty, the Cooler Master V750 SFX Gold, despite its higher price of $161.80, offers features that justify the investment. Ultimately, each power supply serves distinct user scenarios, making them both valuable options within their respective markets.

