CORSAIR RM850x Fully Modular Low-Noise ATX Power vs Seasonic VERTEX GX-1200 - 1200W - 80+ Gold - ATX

Overview of the Products

In this comparison, we will explore the CORSAIR RM850x and the Seasonic VERTEX GX-1200 power supplies. The CORSAIR RM850x is priced at $161.93, while the Seasonic VERTEX GX-1200 comes in at $239.99, making it about 48% more expensive. Both products are fully modular, ensuring optimal cable management, but they cater to different power needs and efficiency certifications.

Design and Build Quality

The CORSAIR RM850x features a sleek design with embossed cables and low-profile combs, making installation straightforward and visually appealing. Its fully modular design allows users to connect only the necessary cables, aiding in efficient airflow and cable management. On the other hand, the Seasonic VERTEX GX-1200 also boasts a fully modular design but includes a 12VHPWR cable for compatibility with the latest graphics cards. Both units utilize high-quality components, but the VERTEX GX-1200's premium Japanese capacitors may appeal to those seeking long-term reliability.

Efficiency Ratings

The CORSAIR RM850x holds a Cybenetics Gold certification, indicating an efficiency rating of up to 91%, which translates to lower power consumption and reduced heat generation. In contrast, the Seasonic VERTEX GX-1200 is also rated at 80 PLUS Gold, ensuring high efficiency but without the explicit percentage rating. Both units are designed to deliver reliable performance, but the CORSAIR's higher efficiency rating could lead to better energy savings over time.

Power Output

The CORSAIR RM850x has a power output of 850W, making it suitable for most mid to high-end gaming systems. Meanwhile, the Seasonic VERTEX GX-1200 offers a substantial 1200W power output, ideal for high-performance rigs that may include multiple GPUs or other power-hungry components. If you anticipate needing more headroom for future upgrades or demanding components, the VERTEX GX-1200 provides nearly 41% more power than the RM850x.

Fan Noise and Cooling

Both power supplies are equipped with advanced cooling technologies to ensure quiet operation. The CORSAIR RM850x features a 140mm fluid dynamic bearing fan that emphasizes low noise levels. The Seasonic VERTEX GX-1200, however, uses a 135mm fluid dynamic bearing fan and incorporates Seasonic's Hybrid Silent Fan Control, which optimizes cooling based on load, potentially offering quieter operation under lower loads. Users prioritizing silence may find the VERTEX GX-1200’s fan control features particularly advantageous.

Warranty and Support

The CORSAIR RM850x comes with a ten-year warranty, reflecting the brand's confidence in its product longevity and reliability. The Seasonic VERTEX GX-1200 also offers a robust 12-year warranty, suggesting an even longer commitment to quality and customer support. This extended warranty may give the VERTEX GX-1200 an edge in terms of peace of mind for users planning long-term builds.

Price Comparison

When it comes to pricing, the CORSAIR RM850x is currently available for $161.93, whereas the Seasonic VERTEX GX-1200 is priced at $239.99. This makes the CORSAIR about $78 cheaper, or roughly 33% less expensive. If budget is a significant factor in your decision, the RM850x provides excellent value for a high-quality power supply without sacrificing performance.

Which should you buy?

Choosing between the CORSAIR RM850x and the Seasonic VERTEX GX-1200 ultimately depends on your specific needs. If you're looking for a reliable, efficient power supply for a standard high-performance build, the CORSAIR RM850x is an excellent choice at a lower price point. However, if you require more power for a fully-loaded system or plan to keep your setup for many years to come, the Seasonic VERTEX GX-1200 offers greater power capacity and a longer warranty, justifying its higher price. Evaluate your current and future hardware needs carefully to make the best decision.