ASUS ROG Strix 1200W Platinum vs MSI MAG A850GN PCIE5
Updated August 2026 — The ASUS ROG Strix 1200W Platinum excels in power output, efficiency, and build quality, making it the superior choice for high-end gaming. The MSI MAG A850GN PCIE5 is a budget-friendly option for mid-range setups.
The ASUS ROG Strix 1200W Platinum excels in power output, efficiency, and build quality, making it the superior choice for high-end gaming. The MSI MAG A850GN PCIE5 is a budget-friendly option for mid-range setups.
Why ASUS ROG Strix 1200W Platinum is better
Power Output
1200W vs 850W
Efficiency Rating
80 PLUS Platinum vs Gold
Warranty
10 years vs 5 years
Why MSI MAG A850GN PCIE5 is better
Price
C$329.99 vs C$99.99
Compact Design
Non-modular design for smaller builds
Basic Compatibility
Supports ATX 3.1 and PCIe 5.1
Overall score
Specifications
| Spec | ASUS ROG Strix 1200W Platinum | MSI MAG A850GN PCIE5 |
|---|---|---|
| Brand | Asus | MSI |
| Certification | 80 PLUS Platinum | 80 PLUS Gold |
| Connector Type | PCIe 5.0 | PCIe 5.1 |
| Cooling Tech | 0dB Technology | Standard |
| Topology | Full Bridge | Full Bridge |
Dimension comparison
Price Comparison
The ASUS ROG Strix 1200W Platinum is priced at C$329.99, while the MSI MAG A850GN PCIE5 is significantly more affordable at C$99.99. This represents a staggering price difference of C$230.00. The higher price of the ASUS ROG Strix reflects its premium features and higher wattage, making it more suitable for gamers with demanding power requirements. In contrast, the MSI MAG offers a budget-friendly option for users who may not need the extensive capabilities of the ROG Strix but still wish to power high-performance components effectively.
Power Output
The ASUS ROG Strix provides a robust 1200W of power, designed to handle high-end gaming systems and demanding hardware configurations. This level of power is essential for users running multiple graphics cards or overclocking their systems. The MSI MAG, on the other hand, delivers 850W, which is sufficient for most gaming setups but may fall short for those seeking maximum performance from their components. Thus, if you require higher power for intense gaming or professional tasks, the ROG Strix is a more suitable choice.
Efficiency Ratings
Efficiency plays a crucial role in power supply performance, and both units boast impressive ratings. The ASUS ROG Strix is 80 PLUS Platinum certified, indicating superior energy efficiency with minimal wasted power. This certification signifies that the ROG Strix maintains high efficiency at various loads, which can lead to lower electricity bills over time. Conversely, the MSI MAG A850GN is 80 PLUS Gold certified, which is still a commendable efficiency rating but slightly lower than the Platinum certification. Users prioritizing energy efficiency may lean towards the ASUS option.
Build Quality and Design
The ASUS ROG Strix is designed with premium components, including GaN MOSFETs, which contribute to its superior power efficiency and a cooler operation. It features large ROG heatsinks that help maintain lower temperatures and noise levels. The dual ball fan bearings are engineered for longevity, lasting up to twice as long as typical sleeve bearing designs. In contrast, the MSI MAG employs a Full Bridge Topology with a DC-DC module design, ensuring stable power delivery and reliability. While both power supplies are built for durability, the build quality of the ROG Strix is aimed at high-end applications and extended usage.
Compatibility Features
The ASUS ROG Strix is ATX 3.1 compatible and boasts a native PCIe 5.0 connector, making it a future-proof option ready for next-gen graphics cards. This compatibility ensures enhanced voltage and current regulation, which is crucial for high-performance setups. The MSI MAG also supports ATX 3.1 and features a native PCIe 5.1 connector, making it suitable for the latest NVIDIA GeForce RTX 40 and 50 Series graphics cards. While both units offer excellent compatibility, the ROG Strix’s additional features cater to enthusiasts looking to build cutting-edge systems.
Warranty and Support
The ASUS ROG Strix comes with an impressive 10-year warranty, reflecting the manufacturer’s confidence in its product’s durability and performance. This extended warranty is a significant advantage for users who plan on investing in a high-end power supply for years to come. On the other hand, the MSI MAG offers a 5-year warranty, which is commendable but does not match the extensive coverage provided with the ROG Strix. For buyers valuing long-term support and peace of mind, the ASUS option stands out.
Noise Levels
Noise levels can be a deciding factor for many gamers. The ASUS ROG Strix features 0dB technology, allowing for silent operation during light gaming sessions. This feature enhances the overall user experience by reducing distractions. The MSI MAG, while built for efficiency and reliability, does not specifically mention sound-dampening technologies, which could mean it may not perform as quietly as the ROG Strix under load. For gamers who prioritise a quieter environment, the ASUS ROG Strix is the better choice.
Which should you buy?
Choosing between the ASUS ROG Strix 1200W Platinum and the MSI MAG A850GN PCIE5 ultimately depends on your specific needs and budget. If you require a high-powered, efficient, and quiet power supply with extensive features and a long warranty, the ASUS ROG Strix is the clear winner, albeit at a higher price of C$329.99. However, if you are looking for a more budget-friendly option that still delivers solid performance for mid-range gaming builds, the MSI MAG at C$99.99 is a very compelling choice. Assessing your power needs and budget will guide you towards the best decision for your setup.
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