CORSAIR RM850e vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Price Comparison

The CORSAIR RM850e is priced at £85.99, while the SAMA G850 Power Supply comes in slightly cheaper at £84.99. The difference of just £1 may seem negligible, but it could be a deciding factor for budget-conscious consumers. Both power supplies offer similar capabilities and are positioned in the same market segment, making price an important consideration. Given their similar pricing, the choice may hinge on other features and performance metrics rather than just cost.

Efficiency Ratings

Efficiency ratings are crucial when evaluating power supplies, and both models boast impressive certifications. The SAMA G850 is rated at 80 Plus Gold, achieving up to 91.15% efficiency at typical loads. This level of efficiency not only reduces power waste but also lowers heat generation, making it ideal for energy-conscious builds. Comparatively, while the CORSAIR RM850e does not specify its exact efficiency percentage, it is also certified under the 80 Plus Gold standard, ensuring reliable performance. Thus, both units promise high efficiency, but the SAMA offers a clearer efficiency metric.

Modular Design

The fully modular design of both the CORSAIR RM850e and the SAMA G850 Power Supply allows users to connect only the cables they need, promoting cleaner builds and improved airflow. The CORSAIR model emphasises its reliability and efficiency through its modular cabling, while the SAMA also highlights enhanced aesthetics and airflow benefits. Both products cater to users looking for a tidy setup, making this feature a pivotal consideration in their overall performance and user satisfaction.

Fan Noise Levels

When it comes to noise levels, the CORSAIR RM850e is equipped with a 120mm rifle bearing fan designed to keep noise to a minimum, even under full load conditions. In contrast, the SAMA G850 features a larger 140mm Fluid Dynamic Bearing fan that promises quiet operation and vibration damping. While both fans aim to reduce noise, the SAMA's larger fan may provide even quieter performance due to its design, potentially making it a better choice for users prioritising a silent experience in their builds.

Capacitor Quality

The quality of capacitors in a power supply can significantly affect its reliability and longevity. The CORSAIR RM850e utilises 105°C-rated capacitors, which are known for their ability to deliver stable and dependable power. On the other hand, the SAMA G850 incorporates premium Japanese capacitors, which are lauded for long life and stability. Both power supplies seem to prioritise high-quality components, but the specific mention of Japanese capacitors in the SAMA's specifications may appeal more to users familiar with their reputation for reliability.

Compatibility and Standards

Both power supplies are compliant with the Intel ATX 3.1 standard and support PCIe 5.1, ensuring they are suited for modern gaming and workstation setups. The SAMA G850 further highlights its compatibility with NVIDIA GeForce RTX 50 and 40 Series GPUs through its native 12V-2x6 connector, making it particularly attractive for those planning to build high-performance gaming rigs. While the CORSAIR RM850e is also designed for modern systems, its specific GPU compatibility is less emphasised. Thus, for users focused on cutting-edge graphics performance, the SAMA may have the edge.

Overall Build Quality and Features

Both the CORSAIR RM850e and the SAMA G850 are designed with high-quality features in mind. The CORSAIR model is noted for its reliable and efficient performance, while the SAMA boasts a compact form factor and comprehensive safety protections, including OVP, OCP, OTP, OPP, SCP, UVP, and SIP. These features ensure safe operation under various conditions, appealing to users who value safety alongside performance. The SAMA's extensive safety features could make it a more reassuring choice for those concerned about component longevity and safety.

Which should you buy?

Choosing between the CORSAIR RM850e and the SAMA G850 ultimately hinges on specific user needs and preferences. If budget is your primary concern, the SAMA G850 offers a slight cost advantage at £84.99 compared to the CORSAIR's £85.99. For those prioritising efficiency, the SAMA's 91.15% efficiency rating stands out. However, if brand reputation and established reliability are paramount, the CORSAIR may be the preferred choice. Additionally, the choice of capacitors and fan sizes plays a role in performance and noise levels. Ultimately, both power supplies are excellent options in the 850W range, providing robust features for modern gaming and workstation builds.