CORSAIR RM750e vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Price Comparison

When considering price, the CORSAIR RM750e is priced at £81.99, making it more affordable than the SAMA G850, which costs £84.99. This £3 difference may seem minimal, but it could be significant for budget-conscious consumers. Both power supplies are competitively priced within the market, yet the slight edge in affordability of the CORSAIR RM750e might appeal to those looking to save on their build costs without compromising on features.

Power Output

The SAMA G850 offers a higher power output of 850W compared to the 750W of the CORSAIR RM750e. This additional capacity can be crucial for users with high-performance systems, especially those running powerful graphics cards like the NVIDIA GeForce RTX 50 or 40 Series. The G850 is designed for modern setups requiring more headroom for power demands, making it a better choice for heavy users, while the RM750e, with its 750W output, is still adequate for mid-range builds.

Efficiency Ratings

In terms of efficiency, the SAMA G850 has an 80 Plus Gold certification, achieving up to 91.15% efficiency at typical loads. This superior efficiency translates to lower energy waste and reduced heat generation, which is beneficial for long-term operational costs and system heat management. The CORSAIR RM750e, while not explicitly rated for efficiency in the provided data, is also ATX 3.1 certified, indicating it meets modern standards but lacks the specific efficiency rating mentioned for the SAMA.

Modular Design

Both power supplies feature a fully modular design, allowing users to connect only the cables they need, which enhances cable management and airflow within the case. This design choice is especially advantageous for users aiming for cleaner builds and improved aesthetics. The CORSAIR RM750e's fully modular setup ensures that you can keep your system tidy, while the SAMA G850 emphasises its modularity for better airflow and case aesthetics, which can be critical for high-end gaming and workstation builds.

Cooling Solutions

The cooling solutions differ slightly between the two units. The CORSAIR RM750e features a 120mm rifle bearing fan that operates quietly under load, designed to maintain low noise levels even at full capacity. Conversely, the SAMA G850 is equipped with a 140mm ECO fan with Fluid Dynamic Bearing technology, which not only ensures silent operation but also extends the lifespan of the fan. This may be a key consideration for users seeking enhanced cooling performance and longevity, particularly in demanding environments.

Capacitor Quality

The quality of capacitors used in power supplies can significantly impact their reliability and performance. The CORSAIR RM750e employs 105°C-rated capacitors, which are essential for delivering steady and reliable power. On the other hand, the SAMA G850 boasts premium Japanese capacitors, known for their long life and stability. This focus on capacitor quality in the SAMA G850 may give it an edge in terms of durability and performance under load, appealing to users who prioritise longevity and stable power delivery.

Compatibility and Standards

Both power supplies are compliant with the Intel ATX 3.1 standard and support PCIe 5.1, making them suitable for modern builds. The CORSAIR RM750e is explicitly noted for its capability to handle 2x transient power excursions from the GPU, ensuring stability during peak loads. The SAMA G850, with its native 12V-2x6 connector, is also optimised for high-performance GPUs, particularly the latest NVIDIA GeForce RTX series. This means both units are well-equipped for current and upcoming technologies, though the specific connectivity options may influence user choice based on their individual setups.

Which should you buy?

Choosing between the CORSAIR RM750e and the SAMA G850 ultimately depends on your specific needs. If budget is a primary concern, the CORSAIR RM750e offers a slightly lower price at £81.99 and adequate performance for mid-range systems. However, if you require higher power output and superior efficiency, the SAMA G850 at £84.99 may provide better value, especially for high-performance builds. Additionally, the enhanced cooling features and premium capacitors of the SAMA G850 could appeal to users seeking reliability and longevity. Each unit has its strengths, making them both solid choices in the power supply market.