CORSAIR RM Series , RM650, Fully Modular Power Supply vs MSI MPG A850GS PCIE5, Fully Modular Gaming 850W

Brand Overview

Both the CORSAIR RM Series and MSI MPG A850GS are reputable products from well-known brands in the power supply market. CORSAIR has established itself as a leader in high-performance components, particularly in the realm of gaming and PC building. Meanwhile, MSI, while perhaps more recognized for its graphics cards and motherboards, has made significant strides in power supply units, showcasing a commitment to quality and efficiency.

The CORSAIR RM650 is designed for ultra-low noise operation and is built with industrial-grade capacitors for reliability. On the other hand, the MSI MPG A850GS emphasizes a unique style and solid performance with its server-grade capacitors. Both brands offer ten-year warranties, underscoring their confidence in the durability of their products.

Price Comparison

When it comes to pricing, the MSI MPG A850GS is notably more economical, priced at $110.99, which is about 20% cheaper than the CORSAIR RM650’s $138.31. This significant price difference could be a decisive factor for budget-conscious consumers looking for a high-quality power supply.

While the CORSAIR RM650 has a slightly higher average price over 90 days at $141.68, the MSI MPG A850GS maintains a lower average price of $102.11 during the same period. This consistency in lower pricing makes the MSI option an attractive choice for those aiming to save without sacrificing performance.

Power Efficiency

Power efficiency is a critical factor when choosing a power supply, and both models carry the esteemed 80 Plus Gold certification. This rating indicates that they deliver high efficiency at converting AC power to DC power, minimizing energy waste.

The CORSAIR RM650 promises consistent power delivery while maintaining low operational noise due to its zero RPM fan mode at lower loads. Conversely, the MSI MPG A850GS highlights its active PFC design combined with an LLC Half Bridge Topology, which enhances efficiency even further. Both units are designed to ensure that your high-performance rig runs smoothly while keeping electricity costs in check.

Noise Levels

Noise levels are essential to consider for gamers and PC builders who prioritize a quiet operation. The CORSAIR RM650 features a 140mm rifle bearing fan that operates quietly, particularly under low to medium loads thanks to its zero RPM fan mode. This design allows for nearly silent operation, making it ideal for builds where noise is a concern.

In comparison, while the MSI MPG A850GS does not specify a noise-reduction feature like a zero RPM mode, it does emphasize low-noise operation, which suggests that it also aims to minimize sound during performance. However, without specific noise ratings, the CORSAIR RM650 may have an edge in this category for those who are particularly sensitive to fan noise.

Build Quality and Components

Build quality is paramount in ensuring the longevity and reliability of a power supply. The CORSAIR RM650 is equipped with industrial-grade, 105°C-rated capacitors, which are known for their reliability and performance under stress. This attention to high-quality components is reflected in CORSAIR's long-standing reputation in the market.

On the other hand, the MSI MPG A850GS also boasts a strong construction with 100% all-Japanese 105°C capacitors. This indicates that both products are built to withstand high temperatures and maintain performance over time. Additionally, the MSI model includes various industrial-level protections, such as Over Voltage Protection and Short Circuit Protection, which enhance its safety and reliability.

Connectivity Options

Connectivity is crucial for ensuring compatibility with modern components. The CORSAIR RM650 comes with triple EPS12V connectors, which provide extensive compatibility with today's graphics cards and motherboards. It also has four PCIe 8-pin power connectors, accommodating a wide range of hardware setups.

Conversely, the MSI MPG A850GS is equipped with dual 12V-2x6 cables, designed to support next-generation graphics cards and high-performance systems. This makes it suitable for gamers looking to future-proof their builds. Both units offer modular designs, allowing users to connect only the cables needed, which helps in maintaining a clean setup.

Visual Design

While aesthetics may not be the primary concern for all users, they play a role in the overall appeal of a power supply, especially in custom builds. The CORSAIR RM650 features a sleek design that complements many gaming rigs and builds, with a focus on functionality over flashiness.

In contrast, the MSI MPG A850GS takes a more fashion-forward approach, with a design that exhibits a unique style that can appeal to gamers who value aesthetics. This differentiation in their visual designs may influence buyers based on personal preference and how the power supply fits into their overall build theme.

Which should you buy?

Choosing between the CORSAIR RM650 and MSI MPG A850GS largely depends on your specific needs and budget. If you prioritize ultra-low noise operation and established brand reliability, the CORSAIR RM650 is an excellent choice, albeit at a higher price point. However, if cost savings and modern connectivity features are more critical, the MSI MPG A850GS stands out as a more economical option with impressive performance capabilities. Both power supplies offer solid quality and efficiency, making either a suitable choice for a gaming or high-performance PC build.