When it comes to power supply units for gaming, two popular options that often come up in discussions are the Corsair RM850x and the Seasonic FOCUS GX-750. Both of these power supplies are highly regarded for their performance, efficiency, and reliability, but they have some key differences that set them apart.
Efficiency and Certification
The Corsair RM850x is an 80 PLUS Gold certified power supply, which means it has an efficiency rating of at least 90% at 50% load. This certification ensures that the power supply wastes less energy as heat and provides a more stable voltage output. On the other hand, the Seasonic FOCUS GX-750 is also an 80 PLUS Gold certified power supply, but it takes it a step further with a higher efficiency rating of up to 92% at 50% load.
Power Output and Modular Design
The Corsair RM850x has a maximum power output of 850 watts, which is more than enough to handle most gaming systems, including those with high-end graphics cards. It also features a fully modular design, which means that all cables are detachable, making it easier to manage cable clutter and improve airflow within the case. The Seasonic FOCUS GX-750, on the other hand, has a maximum power output of 750 watts, which is still sufficient for most gaming systems, but may not be enough for extreme overclocking or multiple graphics card setups. It also features a semi-modular design, which means that some cables are fixed, while others are detachable.
Noise Level and Cooling
The Corsair RM850x is known for its quiet operation, thanks to its 135mm fan, which uses a rifle-bearing design to reduce noise and improve airflow. The power supply also features a zero-RPM mode, which means that the fan will not spin at all when the system is under low loads, resulting in completely silent operation. The Seasonic FOCUS GX-750 also features a 120mm fan, but it uses a more traditional ball-bearing design, which can be slightly noisier than the rifle-bearing design used in the Corsair RM850x.
Connectors and Compatibility
Both power supplies have a similar set of connectors, including ATX, EPS, and PCIe connectors. However, the Corsair RM850x has more SATA and Molex connectors, making it more suitable for systems with multiple storage devices and peripherals. The Seasonic FOCUS GX-750, on the other hand, has a more compact design, which makes it easier to install in smaller cases.
Warranty and Reliability
Both power supplies have a 10-year warranty, which is impressive and provides peace of mind for gamers who plan to keep their systems for an extended period. In terms of reliability, both power supplies are built with high-quality components and have a reputation for being extremely reliable. However, the Seasonic FOCUS GX-750 has a slightly better reputation for reliability, thanks to its more conservative design and higher-quality components.
Conclusion
In conclusion, both the Corsair RM850x and the Seasonic FOCUS GX-750 are excellent power supply units for gaming, offering high efficiency, reliable performance, and quiet operation. However, the Corsair RM850x has a slightly higher power output, a fully modular design, and a more advanced fan design, making it a better choice for extreme gamers who need a lot of power and flexibility. On the other hand, the Seasonic FOCUS GX-750 is a more compact and affordable option that still offers excellent performance and reliability, making it a great choice for gamers who want a high-quality power supply without breaking the bank. Ultimately, the choice between these two power supplies will depend on your specific needs and preferences.
