ASRock PRO 750G vs CORSAIR SF850
Updated August 2026 — The ASRock PRO 750G is a budget-friendly option with solid performance, while the CORSAIR SF850 offers superior efficiency and features for high-end builds.
The ASRock PRO 750G is a budget-friendly option with solid performance, while the CORSAIR SF850 offers superior efficiency and features for high-end builds.
Why ASRock PRO 750G is better
Price
ASRock PRO 750G is significantly cheaper at C$89.94.
Warranty
ASRock offers a 3-year warranty for reliability.
Standard Compatibility
Supports ATX 3.1 and PCIe 5.1 for next-gen components.
Why CORSAIR SF850 is better
Efficiency
CORSAIR SF850 has an 80 PLUS Platinum rating.
Power Output
Offers 850W capacity for high-performance systems.
Compact Design
SFX form factor is ideal for small builds.
Overall score
Specifications
| Spec | ASRock PRO 750G | CORSAIR SF850 |
|---|---|---|
| Certification | 80 PLUS Gold | 80 PLUS Platinum |
| Output Power | 750W | 850W |
| Cooling Fan Size | 120mm | 92mm |
| Modularity | Non-Modular | Fully Modular |
| Compatibility | ATX 3.1 | ATX 3.0 |
Dimension comparison
Overview of ASRock PRO 750G and CORSAIR SF850
The ASRock PRO 750G and CORSAIR SF850 are both high-performance power supplies, but they cater to different needs and preferences. The ASRock PRO 750G is priced at C$89.94, making it a more budget-friendly option, while the CORSAIR SF850 is significantly higher at C$279.99, reflecting its premium features.
The ASRock model boasts an 80 PLUS Gold certification, ensuring up to 90% energy efficiency. In contrast, the CORSAIR SF850 offers an even higher 80 PLUS Platinum rating, ideal for users prioritizing energy savings and performance. The choice between these two power supplies largely depends on the user's specific requirements and budget.
Design and Form Factor
The ASRock PRO 750G features a standard ATX form factor, making it universally compatible with various PC cases. This design allows for easy installation in most mid-tower and full-tower cases. Conversely, the CORSAIR SF850 is designed in a compact SFX form factor, making it perfect for small-form-factor builds or as a space-saving solution in larger cases.
While the ASRock supports a conventional setup, the CORSAIR’s compact dimensions and fully modular design allow for better cable management, which is particularly beneficial in tight spaces. Ultimately, the choice of design will depend on the user's case and space considerations.
Power Output and Efficiency
The ASRock PRO 750G provides a stable output power of 750W, making it suitable for medium to high-performance systems. Its 80 PLUS Gold certification ensures that it achieves up to 90% energy efficiency, reducing energy waste significantly. In contrast, the CORSAIR SF850 offers a higher capacity of 850W, which is beneficial for high-end gaming rigs or workstations that require additional power.
The SF850 also comes with an 80 PLUS Platinum certification, which means it operates at an even higher efficiency level than the ASRock. This efficiency not only translates to lower electricity bills over time but also contributes to a cooler system, as less heat is generated. Users with demanding setups may find the extra power and efficiency of the CORSAIR more appealing.
Cooling Solutions
Cooling mechanisms are crucial for power supplies, and both models offer effective solutions. The ASRock PRO 750G is equipped with a 120mm silent cooling fan, optimised for low-noise operation while managing heat effectively. This feature is particularly appealing for users who want a quieter computing environment.
On the other hand, the CORSAIR SF850 utilises a 92mm PWM cooling fan, which also delivers powerful cooling while maintaining low noise levels thanks to its fluid dynamic bearing. While the ASRock's fan is slightly larger, the CORSAIR’s advanced cooling technology may provide superior performance in compact builds where airflow can be constrained. Users should consider their system's cooling needs when choosing between these two options.
Compatibility with Modern Standards
When it comes to compatibility with modern standards, both power supplies have their strengths. The ASRock PRO 750G is ATX 3.1 and PCIe 5.1 compatible, ensuring that it can support next-generation components without issues. This makes it a strong candidate for users looking to future-proof their systems.
In comparison, the CORSAIR SF850 is ATX 3.0 compliant and PCIe 5.0 ready, allowing it to resist transient power spikes and support the latest graphics cards. Although both models offer modern compatibility, the ASRock’s slightly newer standards could provide an edge for users looking for the latest technology.
Build Quality and Reliability
Reliability is an essential consideration, especially for power supplies. The ASRock PRO 750G is backed by a 3-year warranty, providing assurance of its long-term performance. This warranty is a sign of the manufacturer's confidence in the product's durability.
Conversely, while the CORSAIR SF850 does not explicitly mention a warranty in the provided details, Corsair is known for its high build quality and reliable components. The use of 105°C rated Japanese capacitors in the SF850 suggests a commitment to stability and performance under load. Users may want to research further on warranty specifics when considering the SF850.
Price Point Analysis
When comparing price points, the ASRock PRO 750G is significantly more affordable at C$89.94, making it an attractive option for budget-conscious consumers or those assembling a mid-range system. Its value proposition lies in its balance of performance, efficiency, and cost.
In contrast, the CORSAIR SF850, priced at C$279.99, is aimed at users who require higher performance and efficiency, particularly for high-end builds. The substantial price difference reflects not only the power output but also the advanced features and compact design of the CORSAIR power supply. Buyers should carefully consider their budget and needs when evaluating these two options.
Which should you buy?
The decision between the ASRock PRO 750G and the CORSAIR SF850 ultimately hinges on your specific requirements. If you are looking for an affordable, reliable power supply for a medium to high-performance system, the ASRock PRO 750G is an excellent choice, offering great efficiency and compatibility for its price.
However, if you require a higher capacity, compact design, and superior efficiency for a high-end gaming rig or workstation, the CORSAIR SF850 is worth the investment. Its advanced features and build quality justify the higher price tag for users who prioritise performance and reliability.
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