CORSAIR RM650e vs Asus ROG Strix 1200W Platinum PSU
Updated August 2026 — The Asus ROG Strix 1200W Platinum PSU excels in power output and efficiency, making it ideal for high-performance systems, while the CORSAIR RM650e offers a budget-friendly and reliable option for mid-range builds.
The Asus ROG Strix 1200W Platinum PSU excels in power output and efficiency, making it ideal for high-performance systems, while the CORSAIR RM650e offers a budget-friendly and reliable option for mid-range builds.
Why CORSAIR RM650e is better
Price
CORSAIR RM650e is significantly cheaper at £71.57.
Modular Design
Fully modular design simplifies installation.
Noise Levels
Consistent low-noise performance under load.
Why Asus ROG Strix 1200W Platinum PSU is better
Power Output
Asus ROG Strix provides 1200W for high-performance systems.
Efficiency
GaN MOSFET technology enhances efficiency by up to 30%.
Voltage Regulation
Advanced voltage sensing improves delivery to graphics cards.
Overall score
Specifications
| Spec | CORSAIR RM650e | Asus ROG Strix 1200W Platinum PSU |
|---|---|---|
| Brand | Corsair | ASUS |
| Certification | ATX 3.1 | Platinum |
| Fan Size | 120mm | Large |
| Capacitors | 105°C | Standard |
| Warranty | Standard | Premium |
Dimension comparison
Price Comparison
When considering price, the CORSAIR RM650e is significantly more affordable at £71.57 compared to the Asus ROG Strix 1200W Platinum PSU, which is priced at £179.99. This marks a difference of £108.42, making the CORSAIR a more budget-friendly option for those seeking a reliable power supply without breaking the bank. The considerable cost disparity reflects the varying capabilities and features of the two models, which may impact your choice depending on your power requirements and financial considerations.
Power Output
The Asus ROG Strix 1200W Platinum PSU offers a robust power output of 1200 watts, catering to high-performance systems with demanding components. In contrast, the CORSAIR RM650e delivers 650 watts, which is suitable for mid-range builds. If you are building a system with multiple high-end graphics cards or power-hungry processors, the higher wattage of the Asus may be essential. However, for standard gaming or productivity tasks, the output of the CORSAIR could suffice, presenting a more economical choice without excessive power.
Modular Design
The CORSAIR RM650e features a fully modular design, allowing users to connect only the cables necessary for their specific build. This not only simplifies installation but also enhances airflow within the case. On the other hand, while the Asus ROG Strix 1200W Platinum PSU may not explicitly mention modularity in its features, its advanced design and internal layout, supported by GaN MOSFET technology, suggest improved organisation for better cooling. Therefore, if ease of installation and cable management are priorities for you, the CORSAIR's fully modular approach could be more appealing.
Cooling and Noise Levels
In terms of cooling and noise, the CORSAIR RM650e is designed with a 120mm rifle bearing fan that operates quietly even under full load, ensuring a serene computing environment. The Asus ROG Strix 1200W Platinum PSU, equipped with large heatsinks to maintain lower temperatures, also incorporates 0dB technology, allowing for silent operation during light gaming scenarios. While both power supplies prioritise quiet performance, the unique features of each model cater to different user preferences—those leaning towards a quieter operation at low loads may find Asus's offering more beneficial, while the CORSAIR provides consistent low-noise performance across various load levels.
Efficiency Standards
The Asus ROG Strix 1200W Platinum PSU boasts superior efficiency, attributed to its GaN MOSFET technology, which enhances power efficiency by up to 30%. This efficiency is critical for gamers and professionals who wish to lower their energy consumption and heat output. Conversely, the CORSAIR RM650e is Intel ATX 3.1 certified, ensuring it meets modern efficiency standards and supporting the latest power requirements for high-performance components. Users looking for energy savings and performance may lean towards the Asus, while those needing a reliable and compliant PSU could find the CORSAIR suitable for their needs.
Voltage Regulation
The voltage regulation capabilities of the Asus ROG Strix 1200W Platinum PSU are enhanced by its "GPU-FIRST" voltage sensing technology, which can improve voltage delivery to the graphics card by up to 45%. This feature is particularly advantageous for gamers seeking a stable performance during intensive gaming sessions. In contrast, while the CORSAIR RM650e does not specifically highlight voltage regulation, its compliance with ATX 3.1 standards implies a solid performance in this area. If unyielding voltage delivery is a priority for you, the Asus's advanced features may provide a significant edge.
Brand Reputation and Warranty
Both Corsair and Asus are well-regarded brands in the power supply market, each with a reputation for quality and reliability. The CORSAIR RM650e is known for its dependable performance and is often favoured for its modularity and efficiency. Meanwhile, the Asus ROG Strix 1200W Platinum PSU, part of the premium ROG series, is celebrated for its cutting-edge technology and superior performance metrics. When it comes to warranty, both brands typically offer reliable support, but it's important to check the specific terms as they may vary by model and retailer.
Which should you buy?
Ultimately, your decision will hinge on your specific needs and budget. If you require a high-output power supply for a demanding system and are willing to invest more, the Asus ROG Strix 1200W Platinum PSU is an excellent choice with advanced features tailored for performance enthusiasts. However, if you are looking for a cost-effective, reliable power supply for a mid-range build, the CORSAIR RM650e presents a compelling option with its modular design and solid performance at a fraction of the cost.
versusfinder.com is a participant in the Amazon Services LLC Associates Programme and the Amazon EU Associates Programme. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

