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Lian Li EDGE1000W Fully Modular Low-Noise ATX vs Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Updated August 2026 — Lian Li EDGE1000W Fully Modular Low-Noise ATX wins on modularity and efficiency, Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & wins on warranty.

The Lian Li EDGE1000W offers superior efficiency and features, making it ideal for high-performance systems, while the Thermaltake Smart BM3 is a budget-friendly option with solid performance.

Why Lian Li EDGE1000W Fully Modular Low-Noise ATX is better

Efficiency

Lian Li has 80 PLUS Gold certification.

Modularity

Lian Li is fully modular.

Cooling

Lian Li features a low-noise operation.

Why Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & is better

Price

Thermaltake is significantly cheaper.

Warranty

Thermaltake offers a five-year warranty.

Capacitor Quality

Thermaltake uses high-quality Japanese capacitors.

Overall score

Lian Li EDGE1000W Fully Modular Low-Noise ATX
85
Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
70

Specifications

SpecLian Li EDGE1000W Fully Modular Low-Noise ATXThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
Certification80 PLUS Gold80 PLUS Bronze
ModularityFully ModularSemi-Modular
Cooling FanLow-Noise Fan Hub120mm FDB Fan
Connector Type12V-2x6PCIe Gen 5
Capacitor RatingN/AJapanese 105°C

Dimension comparison

Lian Li EDGE1000W Fully Modular Low-Noise ATXThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Price Comparison

The Lian Li EDGE1000W is priced at $158.99, while the Thermaltake Smart BM3 comes in at a significantly lower price of $75.99. This makes the Thermaltake model approximately 52% cheaper than the Lian Li. For budget-conscious consumers or those looking for a cost-effective power supply, the Smart BM3 presents a compelling choice. However, the price difference also reflects disparities in features and performance capabilities that may justify the higher cost of the Lian Li EDGE1000W for certain users.

Power Delivery and Efficiency

The Lian Li EDGE1000W boasts an impressive 80 PLUS Gold certification, ensuring high efficiency and low noise levels during operation. This model is particularly designed for high-performance PC components, supporting ATX 3.1 and PCIe 5.1 with enhanced resistance to power spikes. On the other hand, the Thermaltake Smart BM3 is 80 PLUS Bronze certified, which, while still efficient, does not match the Gold standard of the Lian Li. The difference in efficiency ratings indicates that the Lian Li has a more stable power output, which can be crucial for demanding setups.

Modular Design

The Lian Li EDGE1000W features a fully modular design, allowing users to connect only the cables they need, which can help with airflow and cable management inside the case. This feature is particularly advantageous for gamers and PC builders who prioritize aesthetics and ease of installation. Conversely, the Thermaltake Smart BM3 is semi-modular, meaning while some cables are detachable, others are fixed. This design may limit customization and could lead to a cluttered appearance if not managed properly.

Cooling Solutions

Cooling is essential for maintaining optimal performance and longevity in power supplies. The Lian Li EDGE1000W employs a low-noise operation and features a fan hub that supports optimal airflow for connected devices, ensuring that both the power supply and system components stay cool. The Thermaltake Smart BM3 also includes a 120mm fluid dynamic bearing fan equipped with a Smart Zero Fan function, which prevents the fan from spinning until the load exceeds 20%. While both cooling solutions are effective, the Lian Li's design is tailored for quieter operation, which may appeal more to those sensitive to noise.

Compatibility

When it comes to compatibility, the Lian Li EDGE1000W is equipped with a 12V-2x6 connector, specifically designed for NVIDIA GeForce RTX 50 and 40 Series graphics cards, ensuring a future-proof option for high-end builds. The Thermaltake Smart BM3, while also PCIe Gen 5 compliant, is slightly less specialized in terms of connector options. The Lian Li's extensive compatibility with the latest graphics technologies can be a deciding factor for gamers and professionals looking to build cutting-edge systems.

Warranty and Durability

The Lian Li EDGE1000W does not specify a warranty duration in the provided data, which may raise concerns for potential buyers regarding long-term reliability. In contrast, the Thermaltake Smart BM3 comes with a five-year warranty, reflecting the brand's confidence in its durability. Moreover, the Smart BM3 utilizes high-quality Japanese capacitors rated for 105°C, which can enhance the overall lifespan of the power supply. This aspect may appeal to users who prioritize longevity in their hardware investments.

Brand Reputation and Support

Both Lian Li and Thermaltake are well-established brands in the PC components market. However, the choice may come down to personal preference and prior experiences with customer support. Lian Li is often praised for its innovative designs and high-quality materials, while Thermaltake is recognized for its value-oriented products and extensive warranty offerings. Users who have had positive experiences with either brand may be more inclined to choose based on brand loyalty.

Which should you buy?

Choosing between the Lian Li EDGE1000W and the Thermaltake Smart BM3 ultimately depends on your specific needs and budget. If you're seeking a high-efficiency, fully modular power supply with advanced features for a high-performance system, the Lian Li EDGE1000W is well worth the investment at $158.99. On the other hand, if you need a more budget-friendly option that still delivers solid performance and reliability, the Thermaltake Smart BM3 at $75.99 is an excellent choice, especially with its five-year warranty and good cooling performance. Your decision should align with your system requirements and financial considerations.