CORSAIR RM750e ATX 3.1 PCIe 5.1 Ready Fully vs Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Price Comparison

The Corsair RM750e is priced at $89.99, while the Thermaltake Smart BM3 costs $75.99, making it about 17% cheaper. When considering budget constraints, the lower price of the Thermaltake Smart BM3 can be appealing for users who are looking for a reliable power supply without breaking the bank. However, the Corsair RM750e’s price reflects its premium features and efficiency ratings.

Modular Design

The Corsair RM750e boasts a fully modular design, allowing users to connect only the cables they need for their builds. In contrast, the Thermaltake Smart BM3 is semi-modular, meaning some cables are fixed while others can be chosen based on requirements. This modularity can greatly influence cable management and airflow within a case, with the fully modular Corsair providing a cleaner setup and potentially better cooling.

Efficiency Ratings

The Corsair RM750e has a Cybenetics Gold efficiency rating, which indicates a high level of energy efficiency. In comparison, the Thermaltake Smart BM3 is 80Plus Bronze certified. While both power supplies meet modern efficiency standards, the Gold rating of the Corsair RM750e suggests it wastes less power and generates less heat under load, potentially leading to lower energy bills and quieter operation.

Cooling Solutions

Both power supplies feature 120mm fans for cooling, but they employ different technologies. The Corsair RM750e comes with a rifle bearing fan that is designed to keep noise levels down, even at full load. The Thermaltake Smart BM3 utilizes a fluid dynamic bearing fan with a Smart Zero Fan function, which means the fan does not spin until the load exceeds 20% of its capacity, resulting in quieter operation during low-use scenarios. This difference in fan technology may appeal to users with varying priorities regarding noise levels.

Component Quality

The Corsair RM750e features 105°C-rated capacitors, ensuring steady and reliable power delivery. Similarly, the Thermaltake Smart BM3 also includes high-quality Japanese 105°C capacitors, emphasizing durability and performance. Both power supplies are built to last, but the Corsair's use of Cybenetics Gold rated components may provide an edge in terms of overall reliability and performance consistency.

Compatibility with Modern Hardware

Both power supplies are compliant with the latest Intel ATX 3.1 standards and support PCIe 5.1. This makes both models suitable for modern graphics cards and high-performance systems. However, the Corsair RM750e includes a native 12V-2x6 connector, which may simplify setup for some users, while the Thermaltake Smart BM3 provides one PCIe Gen 5 connector. The Corsair’s additional offerings may give it a slight advantage for those building cutting-edge systems.

Warranty and Support

The Corsair RM750e comes with a seven-year warranty, reflecting the brand's confidence in the durability of their product. Conversely, the Thermaltake Smart BM3 has a five-year warranty. While both warranties are substantial, the longer warranty period of the Corsair RM750e may provide extra peace of mind for users concerned about long-term reliability.

Which should you buy?

When choosing between the Corsair RM750e and the Thermaltake Smart BM3, your decision should depend on your specific needs and budget. If you prioritize efficiency, a fully modular design, and a longer warranty, the Corsair RM750e is worth the additional cost at $89.99. However, if you are looking for a more budget-friendly option that still meets modern standards, the Thermaltake Smart BM3 at $75.99 offers substantial value with good performance. Both power supplies are excellent choices, but your priorities will dictate which one is the better fit for your system.