Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified vs MONTECH Century II - 850W High-End ATX Gaming
Updated August 2026 — Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified wins on price and cooling, MONTECH Century II - 850W High-End ATX Gaming wins on warranty and wattage.
The MONTECH Century II offers higher wattage and a fully modular design, making it a better choice for demanding setups, while the Apevia ATX-GX650W Galaxy is more budget-friendly.
Why Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified is better
Price
Apevia is significantly cheaper.
Semi-Modular
Apevia's semi-modular design is sufficient for many users.
Cooling
Apevia has a specifically sized fan for noise control.
Why MONTECH Century II - 850W High-End ATX Gaming is better
Wattage
MONTECH provides 850W versus Apevia's 650W.
Modularity
MONTECH is fully modular for better cable management.
Warranty
MONTECH offers a 10-year warranty.
Overall score
Specifications
| Spec | Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified | MONTECH Century II - 850W High-End ATX Gaming |
|---|---|---|
| Power Output | 650W | 850W |
| Certification | 80+ Gold | 80+ Gold |
| Modularity | Semi | Fully |
| Fan Size | 135mm | N/A |
| Warranty | N/A | 10 Years |
Dimension comparison
Overview of Power Supplies
When it comes to choosing a power supply, the Apevia ATX-GX650W Galaxy and the MONTECH Century II stand out as solid options in the gaming market. The Apevia ATX-GX650W Galaxy is priced at $54.99, while the MONTECH Century II is priced at $89.90, making it about 63% more expensive. Both power supplies are 80+ Gold certified, indicating high efficiency, but their features and configurations cater to different user needs.
Performance and Efficiency
The performance of a power supply is crucial for stable and efficient operation. The Apevia ATX-GX650W Galaxy offers 650W of power, providing reliable energy for gaming PCs and high-performance builds. In contrast, the MONTECH Century II provides a higher output of 850W, making it a better choice for users with more demanding hardware setups. Both units are 80 Plus Gold certified, ensuring they operate efficiently, but the MONTECH's higher wattage might appeal to gamers planning to run multiple high-end components.
Design and Modularity
In terms of design, the Apevia ATX-GX650W Galaxy features a semi-modular configuration, allowing users to connect only the cables they need. This can improve airflow and cable management. On the other hand, the MONTECH Century II is fully modular, permitting the user to eliminate unnecessary cables entirely for optimal system organization. While both designs enhance the aesthetic and functional aspects of a PC build, the fully modular design of the MONTECH offers more flexibility for users who prioritize cleanliness and customization.
Cooling Solutions
Cooling is a vital consideration in power supply design, and here the Apevia ATX-GX650W Galaxy incorporates a 135mm thermally controlled fan. This fan automatically adjusts speed based on temperature, balancing cooling performance and noise levels effectively. The MONTECH Century II does not specify its cooling solution in detail, but its design likely includes efficient cooling mechanisms to support its higher power output. For users sensitive to noise, the Apevia’s focused approach to cooling with a specifically sized fan might be appealing.
Safety Features
Safety is an essential aspect of any power supply, and both units come with protective features. The Apevia ATX-GX650W Galaxy includes heavy-duty protections such as short-circuit, over-voltage, and over-power safeguards, ensuring that your PC components are well-protected. While the MONTECH Century II does not list its safety features explicitly, being a high-end unit, it is expected to have robust protections in place. Users looking for peace of mind regarding their component safety may find the detailed protections of the Apevia more reassuring.
Brand Reputation and Warranty
Brand reputation can significantly influence purchasing decisions, and the MONTECH Century II offers a 10-year warranty, which is a strong indicator of the manufacturer's confidence in its product's longevity and reliability. The Apevia ATX-GX650W Galaxy does not specify a warranty period, which could be a potential drawback for buyers who prioritize assurance in their investments. The longer warranty of the MONTECH may appeal to users looking for durability and assurance in their power supply.
Price Considerations
Pricing plays a critical role in the decision-making process for many consumers. The Apevia ATX-GX650W Galaxy is priced at $54.99, making it a more budget-friendly option compared to the MONTECH Century II at $89.90. This price difference of about $34.91 might be a decisive factor for gamers on a tighter budget. However, the higher price of the MONTECH Century II may be justified by its additional features and capabilities, particularly for users with more demanding power requirements.
Which should you buy?
Ultimately, the choice between the Apevia ATX-GX650W Galaxy and the MONTECH Century II depends on your specific needs and budget. If you are looking for a cost-effective power supply for a mid-range gaming setup, the Apevia ATX-GX650W Galaxy offers solid performance at a lower price point. However, if you require higher wattage, fully modular design, and longer warranty coverage, the MONTECH Century II is worth the investment. Consider your particular gaming setup and future upgrade plans to make the best choice for your needs.

