CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs SAMA G850 Power Supply - 850W Fully Modular 80 Plus Gold Certified ATX 3.1 & PCI

Price Comparison

When comparing the prices of the CORSAIR CX650 and SAMA G850, there's a significant difference, with the SAMA G850 priced at £84.99, while the CORSAIR CX650 is considerably cheaper at £44.99. This £40 price gap reflects the differing features and capabilities of the two power supplies. The CORSAIR model may appeal to budget-conscious consumers seeking a reliable power supply without breaking the bank. In contrast, the SAMA G850, with its higher price, offers premium features such as 80 Plus Gold certification and a fully modular design, justifying its cost for users looking for enhanced performance and efficiency.

Efficiency Ratings

The efficiency of a power supply is crucial for performance and cost-effectiveness. The CORSAIR CX650 is rated at 80 PLUS Bronze, providing up to 88% operational efficiency, which is quite respectable. On the other hand, the SAMA G850 boasts an impressive 80 Plus Gold certification, achieving up to 91.15% efficiency at typical loads. This higher efficiency means less energy waste and lower heat generation, making the SAMA G850 a more energy-conscious choice for high-performance systems. Users who prioritise efficiency may find the SAMA G850 to be the superior option.

Modular Design

The modular design of a power supply significantly impacts cable management and airflow within a PC case. The CORSAIR CX650 is a non-modular unit, meaning all cables are fixed, which can lead to clutter and less optimal airflow in some builds. In contrast, the SAMA G850 features a fully modular design, allowing users to connect only the cables they need. This flexibility not only enhances aesthetics but also improves airflow, crucial for high-end gaming and workstation setups. For users focused on a clean build, the fully modular nature of the SAMA G850 is a decisive advantage.

Cooling Solutions

Cooling is essential to maintain the performance and longevity of a power supply. The CORSAIR CX650 uses a 120mm thermally controlled low-noise cooling fan that adjusts its speed based on demand, ensuring quiet operation under lower loads. However, the SAMA G850 takes cooling a step further with its 140mm Fluid Dynamic Bearing (FDB) fan, designed for silent operation and extended lifespan. This feature, combined with its premium Japanese capacitors, positions the SAMA G850 as a more robust choice for users who require quiet and efficient cooling under heavy loads.

Compatibility and Standards

Both power supplies are designed with modern technology in mind, but they cater to slightly different needs. The CORSAIR CX650 is a solid choice for standard builds, providing reliable power delivery for a wide range of components. Conversely, the SAMA G850 is ATX 3.1 compliant and includes a native 12V-2x6 connector, making it particularly suited for NVIDIA GeForce RTX 40 and 50 Series graphics cards. This added compatibility is crucial for users wanting to future-proof their systems and ensure optimal performance with the latest hardware.

Build Quality and Components

The build quality of a power supply can significantly affect its reliability and longevity. The CORSAIR CX650 is well-regarded for delivering full continuous power, which is essential for stable performance. However, the SAMA G850 stands out with its premium Japanese capacitors and complete protections against various electrical issues, such as over-voltage and short-circuit protection. These features suggest that the SAMA G850 is designed for higher performance and durability, which may appeal to enthusiasts and gamers seeking a long-lasting power supply.

Aesthetics and Design

Aesthetics can play a vital role in a PC build, especially for those who showcase their setups. The CORSAIR CX650 features black sleeved cables and a black powder-coated casing that can seamlessly integrate into many builds. While it has a sleek design, the SAMA G850 also prioritises aesthetics with its fully modular layout, allowing for a cleaner appearance inside the case. Users looking for a visually appealing build might prefer the SAMA G850, as its design caters to those who value both performance and style.

Which should you buy?

Choosing between the CORSAIR CX650 and the SAMA G850 ultimately depends on your specific needs and budget. If you are looking for a more affordable, reliable power supply that delivers solid performance for standard builds, the CORSAIR CX650 at £44.99 is a great choice. However, if you require a power supply with higher efficiency, modularity, and advanced features for a high-performance system, the SAMA G850 at £84.99 is worth the investment. Your decision should be guided by your performance requirements, budget constraints, and the type of components you plan to use in your build.