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CORSAIR RM850e vs Thermaltake Smart 500W 80+ White Certified PSU

Updated August 2026The CORSAIR RM850e is a superior choice for high-performance systems, while the Thermaltake Smart 500W is a budget-friendly option for basic builds.

The CORSAIR RM850e is a superior choice for high-performance systems, while the Thermaltake Smart 500W is a budget-friendly option for basic builds.

Why CORSAIR RM850e is better

Power Output

850 watts vs 500 watts

Modular Design

Fully modular vs non-modular

Efficiency Ratings

Intel ATX 3.1 certified vs 80 PLUS certified

Why Thermaltake Smart 500W 80+ White Certified PSU is better

Price

C$54.98 vs C$184.99

Basic Use

Adequate for basic builds

Component Quality

High-quality components at a lower price

Overall score

CORSAIR RM850e
90
Thermaltake Smart 500W 80+ White Certified PSU
60

Specifications

SpecCORSAIR RM850eThermaltake Smart 500W 80+ White Certified PSU
BrandCorsairThermaltake
CertificationATX 3.180 PLUS
Fan Size120mmNot specified
Protection FeaturesYesYes
Capacitor Rating105°CNot specified

Dimension comparison

CORSAIR RM850eThermaltake Smart 500W 80+ White Certified PSU

Pricing Comparison

When it comes to pricing, the CORSAIR RM850e is significantly more expensive than the Thermaltake Smart 500W 80+ White Certified PSU. The RM850e is priced at C$184.99, while the Smart 500W retails for a mere C$54.98. This difference of C$130.01 reflects the advanced features and higher wattage capabilities of the RM850e, making it a premium option. Conversely, the Smart 500W offers a more budget-friendly choice for those who need a reliable power supply without the higher specifications of the RM850e.

Power Output

The power output is a crucial factor when choosing a power supply. The CORSAIR RM850e delivers a robust 850 watts, making it suitable for high-performance systems that require more power, especially for gaming or intensive tasks. In contrast, the Thermaltake Smart 500W provides 500 watts of continuous output, which is adequate for basic builds or mid-range systems. This difference in wattage means that the RM850e can support more demanding hardware configurations, whereas the Smart 500W is best suited for users with less power-hungry components.

Modular Design

The modular design of a power supply can greatly influence cable management and airflow within a PC case. The CORSAIR RM850e features a fully modular design, allowing users to connect only the cables necessary for their specific build. This can lead to a cleaner setup and improved airflow. On the other hand, the Thermaltake Smart 500W does not mention a modular design, which often results in excess cables that may clutter the build. For enthusiasts who prioritise aesthetics and efficiency, the modularity of the RM850e is a significant advantage.

Efficiency Ratings

Efficiency ratings are important as they indicate how much energy is wasted as heat during power supply operation. The CORSAIR RM850e is compliant with the Intel ATX 3.1 standard, which ensures higher efficiency levels and stability under load. Although the exact efficiency percentage is not specified, the expectation is that it will exceed the typical performance of non-certified units. In comparison, the Thermaltake Smart 500W is 80 PLUS certified, indicating 80% efficiency under typical loads. While both power supplies are efficient, the certification and higher output of the RM850e suggest a more efficient operation overall.

Noise Levels

Noise levels can significantly affect the user experience, especially in quiet environments. The CORSAIR RM850e features a 120mm rifle bearing fan designed to maintain low noise levels, even at full load. This careful engineering ensures that users can enjoy a quieter computing experience. The Thermaltake Smart 500W, while not explicitly rated for noise, generally does not incorporate the same level of noise-reduction features. Users seeking a quiet system will likely find the RM850e more appealing due to its focus on maintaining low operational noise.

Component Quality

The quality of components used in a power supply can affect its longevity and reliability. The CORSAIR RM850e is built with 105°C-rated capacitors, which are known for their durability and ability to deliver steady and reliable power. This high-quality construction can lead to a longer lifespan and better performance under varying loads. The Thermaltake Smart 500W also claims to use high-quality components, but it lacks the specific mention of temperature ratings. As a result, the RM850e may provide better overall reliability and performance over time.

Compatibility with New Standards

Compatibility with current and upcoming hardware standards is vital for future-proofing a build. The CORSAIR RM850e is Intel ATX 3.1 certified and supports PCIe 5.1, meaning it is designed to handle the latest graphics cards and components. This certification indicates that the RM850e can manage higher power demands and transient excursions from GPUs effectively. In contrast, the Thermaltake Smart 500W does not mention compatibility with newer standards, which may limit its usefulness for future upgrades or high-end components.

Which should you buy?

When considering which power supply to purchase between the CORSAIR RM850e and the Thermaltake Smart 500W 80+ White Certified PSU, the choice ultimately depends on your specific needs and budget. If you require a high-wattage, modular power supply with advanced efficiency and noise reduction features, the CORSAIR RM850e is the clear winner at C$184.99. However, for users looking for a budget-friendly option for basic builds, the Thermaltake Smart 500W at C$54.98 is a solid choice, especially for less demanding systems.

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CORSAIR RM850e vs Thermaltake Smart 500W 80+ White Certified PSU | versusfinder