CORSAIR RM850e Fully Modular Low-Noise ATX Power vs Thermaltake Toughpower SFX 750W 80Plus Platinum

Price Comparison

The CORSAIR RM850e is priced at $94.99, while the Thermaltake Toughpower SFX 750W is priced at $139.99. This makes the CORSAIR RM850e approximately 32% cheaper than its competitor. If budget is a primary consideration, the RM850e offers significant savings while still delivering high-quality performance. The price difference could allow for additional budget allocation towards other components of your PC build, making it a compelling choice for those looking to maximize their investment.

Power Output

In terms of power output, the CORSAIR RM850e provides an impressive 850W, while the Thermaltake Toughpower SFX offers 750W. This 100W difference means the RM850e can support more demanding systems or future upgrades without the need to replace the power supply. The higher wattage of the RM850e makes it particularly suitable for users planning to run high-performance GPUs or multiple components that require substantial power.

Efficiency Ratings

The Thermaltake Toughpower SFX has an 80 PLUS Platinum efficiency certification, while the CORSAIR RM850e boasts a Cybenetics Gold efficiency rating. While both power supplies are efficient, the Platinum rating indicates that the Toughpower SFX is slightly superior in terms of energy conversion, resulting in less wasted energy and potentially lower electricity bills over time. However, the RM850e's Gold rating still signifies a very efficient power supply, making either choice a good investment for energy-conscious users.

Modularity

Both the CORSAIR RM850e and the Thermaltake Toughpower SFX are fully modular, allowing for flexible cable management. This means you can connect only the cables that your build requires, leading to a cleaner installation and better airflow. The CORSAIR's modular design includes a 12V-2x6 cable, which is essential for modern GPUs. On the other hand, the Thermaltake also features low-profile cables, enhancing compatibility with compact cases. The modularity of both units is a significant advantage for builders who value neatness and efficiency.

Cooling Solutions

The cooling solutions differ between the two models. The CORSAIR RM850e features a 120mm rifle bearing fan designed to minimize noise, even under full load. In contrast, the Thermaltake Toughpower SFX is equipped with a 90mm FDB fan. Although both fans aim to keep temperatures low, the larger fan on the RM850e may be more effective in maintaining lower noise levels during operation, potentially leading to a quieter PC experience, especially under heavy loads.

Compatibility and Standards

The CORSAIR RM850e is Intel ATX 3.1 certified and is compliant with PCIe 5.1 standards, making it a robust choice for the latest hardware. The Thermaltake Toughpower SFX is also compliant with ATX 3.1 standards and is PCIe Gen 5.1 ready. Both units are designed to handle next-gen hardware seamlessly. However, the RM850e’s additional native 12V-2x6 connector further enhances its compatibility with modern graphics cards, making it particularly suitable for builds that require cutting-edge technology.

Warranty and Reliability

Both power supplies come with a seven-year warranty, which speaks to their reliability and the manufacturer's confidence in their products. This long warranty period is a significant plus for users who want peace of mind regarding their investment. The CORSAIR RM850e is built with 105°C-rated capacitors, ensuring stability and dependable electrical performance, while the Thermaltake Toughpower SFX guarantees stability and durability through its robust design. Users can rest assured that either model will provide reliable power for years to come.

Which should you buy?

Choosing between the CORSAIR RM850e and the Thermaltake Toughpower SFX ultimately depends on your specific needs. If you require higher wattage, lower pricing, and a quieter operation, the CORSAIR RM850e is the clear winner. However, if you prefer superior efficiency ratings and a slightly more compact form factor, the Thermaltake Toughpower SFX could be the better choice. Both options are exceptional in their own right, but the RM850e's advantages make it a compelling choice for most users looking to build a powerful and efficient PC.