CORSAIR RM Series , RM650, Fully Modular Power Supply vs Lian Li SX1200P Platinum Compact ATX Form Factor

Price Comparison

When comparing prices, the CORSAIR RM Series is about 14% cheaper than the Lian Li SX1200P Platinum. The CORSAIR RM650 is priced at $138.31, while the Lian Li SX1200P comes in at $159.99. This price difference of approximately $21.68 can be significant for budget-conscious builders. Both products are fully modular, but if you're looking to save some money while still acquiring a reliable power supply, the CORSAIR RM650 offers a more affordable option.

Power Output

The Lian Li SX1200P Platinum boasts a significant power output of 1200W, which is nearly double that of the CORSAIR RM650's 650W. This makes the Lian Li unit more suitable for high-performance setups that require more power, such as systems with multiple GPUs or demanding processors. The extra wattage can help ensure stability during peak loads, while the CORSAIR RM650 is adequate for mid-range builds or standard gaming setups. If your needs are more power-intensive, the Lian Li's higher output may be worth the investment.

Efficiency Ratings

In terms of efficiency, the Lian Li SX1200P Platinum holds a clear advantage with its 80 Plus Platinum certification, achieving up to 92% efficiency at 50% load. This can translate to lower electricity bills and less heat generation. The CORSAIR RM650, while also efficient with its 80 Plus Gold rating, achieves slightly lower efficiency than the Lian Li. For users concerned about energy costs and eco-friendliness, the Lian Li's superior efficiency is a crucial factor to consider.

Modular Design

Both power supplies feature a fully modular design, allowing users to connect only the cables they need, which aids in cable management and airflow. The CORSAIR RM650 emphasizes its modularity with triple EPS12V connectors, enabling compatibility with modern components. Meanwhile, the Lian Li SX1200P also offers ample PCIe 6+2 connectors, making it versatile for various setups. While both designs are user-friendly, the choice may ultimately depend on specific connectivity needs for your build.

Cooling Technology

Cooling performance is another critical factor, and here, both products offer unique features. The CORSAIR RM650 includes a 140mm rifle bearing fan with a specially calculated fan curve, ensuring minimal noise even at full load. It also features a zero RPM fan mode for near-silent operation under low to medium loads. On the other hand, the Lian Li SX1200P incorporates smart cooling technology with a fanless mode for loads below 40%, which can also lead to silent operation. Each power supply has its cooling strengths, so the best option will depend on your noise tolerance and cooling requirements.

Build Quality and Durability

When it comes to durability, both products are built with high-quality components. The CORSAIR RM650 is equipped with industrial-grade, 105°C-rated capacitors, which contribute to its reliability and performance. Similarly, the Lian Li SX1200P features 100% Japanese 105°C-rated capacitors for exceptional durability. Both brands offer solid warranties, with the CORSAIR unit boasting a ten-year warranty, which is standard for high-end power supplies. Users looking for longevity and reliability in their power supply will find both options appealing.

Brand Reputation and Support

Brand reputation plays an essential role in consumer choice. Corsair is well-known in the PC gaming community for producing reliable and high-performance components. The Lian Li brand is also respected, particularly among enthusiasts who appreciate its emphasis on aesthetics and build quality. Both brands offer support, but Lian Li highlights its customer service for missing parts or cable color issues, which may be a deciding factor for some users. The decision may ultimately come down to personal preference based on brand loyalty or past experience.

Which should you buy?

Choosing between the CORSAIR RM650 and the Lian Li SX1200P Platinum ultimately depends on your specific needs and budget. If you're looking for a cost-effective solution with adequate power for typical gaming setups, the CORSAIR RM650 is a fantastic choice at $138.31. However, if you require more power and efficiency for a high-performance system, the Lian Li SX1200P, despite its higher price of $159.99, offers significant advantages in power output and efficiency. Consider your current and future build requirements carefully before making a decision.