ASRock PRO-650G Power Supply - 650W 80 Plus Gold vs CORSAIR RM Series , RM650, Fully Modular Power Supply

Price Comparison

The ASRock PRO-650G Power Supply is priced at $49.99, while the CORSAIR RM650 costs $138.31. This makes the ASRock option about 64% cheaper than its Corsair counterpart. For budget-conscious buyers, this significant price difference may be a decisive factor. The affordability of the ASRock power supply does not come at the expense of quality, as it boasts 80 PLUS Gold certification, ensuring energy efficiency and minimal heat output, which can lead to cost savings over time.

Efficiency and Performance

Both power supplies are 80 PLUS Gold certified, ensuring high energy efficiency, but the ASRock PRO-650G delivers its power at a slightly more competitive price. The ASRock unit provides up to 90% efficiency, while the CORSAIR RM650 also aims for high efficiency but at a higher cost. The ASRock’s stable 12V output of 54.1A is sufficient for most mid-range gaming systems, making it a reliable choice for users who prioritize performance without overspending.

Design and Build Quality

The ASRock PRO-650G features all-Taiwanese capacitors, which are known for durability and longevity, while the CORSAIR RM650 uses industrial-grade, 105°C-rated capacitors for solid electrical performance. While both power supplies boast high-quality components, the fully modular design of the RM650 allows users to connect only the cables they need, reducing clutter and improving airflow in the case. However, the ASRock's flat cable design also offers improved airflow and easier cable management, making it a strong contender in this category.

Cooling Solutions

For cooling solutions, the ASRock PRO-650G includes a quiet 120mm fan, which maintains low noise levels during operation. On the other hand, the CORSAIR RM650 features a 140mm rifle bearing fan, designed for minimal noise, especially under load, and includes a zero RPM fan mode for near-silent operation at low to medium loads. The larger fan size in the RM650 could imply better airflow and cooling efficiency, particularly under high-performance scenarios, which might appeal to gamers and performance users.

Compatibility

The ASRock PRO-650G is ATX 3.1 ready, ensuring compatibility with modern components, while the CORSAIR RM650 also supports all necessary connections for contemporary builds, including triple EPS12V connectors for enhanced compatibility with graphics cards and motherboards. Both power supplies cater to modern setups, but the ASRock's compliance with the latest ATX standard may provide a slight edge in terms of future-proofing for users planning to upgrade their systems.

Warranty and Support

The ASRock PRO-650G comes with a 3-year warranty, while the CORSAIR RM650 is backed by a more extended 10-year warranty. This significant difference in warranty duration may attract users who prioritize long-term reliability and manufacturer support. With a longer warranty, CORSAIR demonstrates confidence in the durability of its product, which can be an essential consideration for users who plan to invest in high-performance components.

Brand Reputation

Both ASRock and Corsair have established reputations in the PC hardware community, but Corsair is often seen as a premium brand with a strong following among gamers and high-performance enthusiasts. The brand’s long history in the market and focus on high-quality components might make the RM650 a more desirable option for users looking for brand prestige. However, the ASRock PRO-650G offers an excellent budget-friendly choice without sacrificing essential features, appealing to those who may not need premium branding.

Which should you buy?

The decision between the ASRock PRO-650G and the CORSAIR RM650 largely depends on your specific needs and budget. If affordability and essential performance are your priorities, the ASRock PRO-650G stands out as a remarkable choice at $49.99, offering solid features and efficiency. Conversely, if you prefer a fully modular design, a longer warranty, and potentially quieter operation under load, the CORSAIR RM650 at $138.31 may be worth the investment. Ultimately, both power supplies are excellent options, but your choice should align with your budget and performance requirements.