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ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs Cooler Master V850 SFX Gold 850W Fully Modular

Updated August 2026 — Cooler Master V850 SFX Gold 850W Fully Modular leads on modularity and warranty.

The ASRock PRO-650G is a budget-friendly option for mid-range builds, while the Cooler Master V850 SFX Gold offers superior power and features for high-performance systems.

Why ASRock PRO-650G Power Supply - 650W 80 Plus Gold is better

Price

ASRock is significantly cheaper at $49.99.

Form Factor

Standard ATX form factor for easier compatibility.

Cooling

Larger 120mm fan may provide better airflow.

Why Cooler Master V850 SFX Gold 850W Fully Modular is better

Power

Cooler Master provides 850W compared to ASRock's 650W.

Warranty

10-year warranty versus ASRock's 3-year warranty.

Modularity

Fully modular design for better cable management.

Overall score

ASRock PRO-650G Power Supply - 650W 80 Plus Gold
75
Cooler Master V850 SFX Gold 850W Fully Modular
88

Specifications

SpecASRock PRO-650G Power Supply - 650W 80 Plus GoldCooler Master V850 SFX Gold 850W Fully Modular
Efficiency80 PLUS Gold80 PLUS Gold
ModularityNon-ModularFully Modular
Cooling120mm Fan92mm FDB Fan
CompatibilityATXSFX
CapacitorsTaiwaneseJapanese

Dimension comparison

ASRock PRO-650G Power Supply - 650W 80 Plus GoldCooler Master V850 SFX Gold 850W Fully Modular

Overview of ASRock PRO-650G Power Supply

The ASRock PRO-650G Power Supply is priced at $49.99, making it a budget-friendly option for gamers and PC builders looking for reliable power. It delivers 650W of power and boasts an 80 PLUS Gold certification, ensuring high energy efficiency of up to 90%. This power supply meets the latest ATX 3.1 standard, making it compatible with modern components. The continuous +12V output of 54.1A provides stable power, crucial for CPU and graphics card performance. Additionally, it features comprehensive protections for enhanced system safety and a quiet 120mm fan for efficient cooling.

Overview of Cooler Master V850 SFX Gold

The Cooler Master V850 SFX Gold is significantly more expensive at $153.25, but it offers a robust set of features designed for high-performance computing. With an 850W capacity and also 80 PLUS Gold certified, it delivers up to 90% energy efficiency. This unit is fully modular, which simplifies cable management and enhances airflow within compact cases. The V850 SFX Gold is ideal for mini-ITX builds, and it includes a 90° angled 12VHPWR PCIe 5.1 connector, ensuring improved electrical durability. Its compact design makes it suitable for a range of cases, from mini-ITX to E-ATX, while its 10-year warranty reflects the brand's confidence in product longevity.

Power Delivery and Efficiency

When comparing power delivery, the ASRock PRO-650G provides 650W, which is sufficient for mid-range gaming setups. In contrast, the Cooler Master V850 offers more power at 850W, making it better suited for high-end systems that require additional power for multiple GPUs or extensive peripherals. Both models are 80 PLUS Gold certified, ensuring excellent efficiency. However, the V850, with its higher capacity, is more adaptable for future upgrades. The price difference of $103.26 might be justified for users planning to build more demanding systems.

Build Quality and Components

The ASRock PRO-650G is built using all-Taiwanese capacitors, known for their durability and longevity. This PSU includes robust protections such as over-current, over-voltage, under-voltage, over-temperature, and short-circuit protection, ensuring safe operation. On the other hand, the Cooler Master V850 is equipped with 100% Japanese capacitors, which are renowned for their reliability and efficiency. Its design includes an integrated transformer and advanced cooling mechanisms, allowing for superior thermal performance. While both units prioritize quality, the Japanese capacitors in the V850 may offer added peace of mind for high-performance applications.

Cooling Solutions

Cooling efficiency is crucial for maintaining performance, especially in gaming rigs. The ASRock PRO-650G features a quiet 120mm fan that helps maintain low noise levels while providing adequate cooling. In contrast, the Cooler Master V850 utilizes a 92mm Fluid Dynamic Bearing (FDB) fan, which is designed for efficient cooling with lower maintenance needs. Both power supplies prioritize quiet operation, but the ASRock’s larger fan may provide slightly better airflow in a standard ATX case. The choice here may depend on the specific case and cooling requirements of the user's build.

Form Factor and Compatibility

The ASRock PRO-650G adheres to the standard ATX form factor, making it compatible with most PC cases. Its dimensions of 140x150x86mm facilitate easy installation in a wide range of setups. Conversely, the Cooler Master V850 is designed as an SFX power supply, which is suitable for compact builds and mini-ITX cases. This smaller form factor allows for flexibility in design but may require additional consideration for cable lengths. Users looking for a compact solution might prefer the V850, while those building standard setups may find the ASRock unit more convenient.

Warranty and Customer Support

The ASRock PRO-650G comes with a 3-year warranty, providing a reasonable level of manufacturer support for users. In comparison, the Cooler Master V850 offers a 10-year warranty, reflecting the brand's commitment to quality and customer satisfaction. A longer warranty can be an essential factor for customers investing in higher-end hardware, as it suggests greater reliability and potential longevity. For users who prioritize long-term usage and support, the Cooler Master's extended warranty could make a significant difference.

Which should you buy?

Choosing between the ASRock PRO-650G and the Cooler Master V850 SFX Gold ultimately depends on your specific needs and budget. The ASRock model is about 67% cheaper at $49.99 compared to the V850's $153.25, making it an attractive option for budget-conscious builds. However, if you're planning a high-performance setup or a compact build requiring additional power and flexibility, the Cooler Master V850 justifies its higher price with superior capacity, build quality, and a longer warranty. Evaluate your system requirements, future upgrade plans, and budget to make the best choice for your power supply needs.