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Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified vs Lian Li SX1200P Platinum Compact ATX Form Factor

Updated August 2026 — Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified wins on price and size, Lian Li SX1200P Platinum Compact ATX Form Factor wins on warranty and power.

The Lian Li SX1200P Platinum outperforms the Apevia ATX-GX650W Galaxy in power output, efficiency, and modularity, making it the superior choice for high-performance builds.

Why Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified is better

Price

Apevia is significantly cheaper at $54.99.

Size

Apevia is more compact for smaller builds.

Noise Level

Apevia has a quieter fan operation.

Why Lian Li SX1200P Platinum Compact ATX Form Factor is better

Power Output

Lian Li provides 1200W compared to 650W.

Efficiency

Lian Li is 80 Plus Platinum certified.

Modularity

Lian Li offers a fully modular design.

Overall score

Apevia ATX-GX650W Galaxy 650W 80+ Gold Certified
65
Lian Li SX1200P Platinum Compact ATX Form Factor
85

Specifications

SpecApevia ATX-GX650W Galaxy 650W 80+ Gold CertifiedLian Li SX1200P Platinum Compact ATX Form Factor
Wattage650W1200W
Efficiency Rating80 Plus Gold80 Plus Platinum
ModularitySemi-ModularFully Modular
Fan Size135mm140mm
WarrantyNot specified10 years

Dimension comparison

Apevia ATX-GX650W Galaxy 650W 80+ Gold CertifiedLian Li SX1200P Platinum Compact ATX Form Factor

Price Comparison

The Apevia ATX-GX650W Galaxy is priced at $54.99, while the Lian Li SX1200P Platinum costs $159.99, making it about 189% more expensive. The significant price difference is primarily due to the power output capabilities and certifications of each unit. The Apevia provides 650W of power, ideal for mid-range gaming setups, whereas the Lian Li delivers a robust 1200W, making it suitable for high-performance builds or multi-GPU configurations. For budget-conscious users who need reliable performance for less intense setups, the Apevia offers a compelling value.

Power Output

In terms of power output, the Lian Li SX1200P clearly outshines the Apevia ATX-GX650W. With 1200W available, the Lian Li is engineered for more demanding systems, easily handling multiple GPUs and high-performance CPUs. The Apevia, on the other hand, delivers 650W, which is sufficient for standard gaming rigs but may fall short for those looking to push their systems to the limits. Users considering future upgrades or expansions may find the extra wattage of the Lian Li more appealing.

Efficiency Ratings

The efficiency rating is another area where the Lian Li SX1200P takes the lead. It boasts an 80 Plus Platinum certification, achieving up to 92% efficiency at 50% load, which translates into lower electricity bills and less heat generation. In contrast, the Apevia ATX-GX650W is 80 Plus Gold certified, providing reliable efficiency but at a slightly lower level than the Platinum-rated Lian Li. While both units are efficient, the Lian Li's superior rating may appeal to users who prioritize energy conservation and performance.

Design and Modular Options

The Apevia's semi-modular design allows for a cleaner build by enabling users to connect only the cables they need. This can improve airflow and cable management, particularly in tighter spaces. The Lian Li SX1200P, however, offers a fully modular setup, providing even greater flexibility for cable management. This design is particularly beneficial for users with compact cases or those who prefer a tidy look. The Lian Li’s fully modular design may justify its higher price for enthusiasts focused on aesthetics and airflow.

Cooling Solutions

When it comes to cooling, both power supplies have effective solutions. The Apevia features a 135mm thermally controlled fan that adjusts its speed for optimal cooling with minimal noise, making it suitable for quiet builds. The Lian Li, however, takes cooling a step further with smart technology that allows for a fanless mode at loads of 40% or lower, enhancing silent operation during lighter tasks. This capability not only improves the user experience in quiet environments but also extends the lifespan of the components.

Cable Management

Cable management is a crucial aspect of any build, and here the Lian Li SX1200P excels with its flexible braided cables. These cables are designed to be super flexible and facilitate easy routing, which can significantly reduce clutter and improve airflow in complex setups. The Apevia, while semi-modular, does not offer the same level of flexibility in its cabling. Users who prioritize clean cable management may find the Lian Li's design more appealing, especially in high-performance gaming or workstation builds.

Warranty and Support

The warranty and support options available with a power supply can greatly influence purchasing decisions. The Lian Li SX1200P comes with a 10-year warranty, reflecting the manufacturer’s confidence in its durability and performance. Additionally, the brand provides RMA support for missing parts or cable color issues. In contrast, the warranty information for the Apevia is not mentioned, potentially indicating a shorter coverage period. For users looking for long-term reliability and support, the Lian Li's warranty may be a significant factor.

Which should you buy?

Choosing between the Apevia ATX-GX650W Galaxy and the Lian Li SX1200P Platinum ultimately depends on your specific needs and budget. If you're looking for an affordable, reliable power supply for a mid-range gaming setup, the Apevia at $54.99 offers great value. However, if you plan to build a high-performance system or require features like full modularity, smart cooling technology, and a long warranty, the Lian Li’s $159.99 price tag may be justified. For those who prioritize efficiency, power output, and longevity, the Lian Li SX1200P is the better investment.