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Cooler Master V850 SFX Gold 850W Fully Modular vs Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Updated August 2026 — Cooler Master V850 SFX Gold 850W Fully Modular leads on modularity and warranty.

The Cooler Master V850 SFX Gold offers superior performance and features compared to the Thermaltake Smart BM3, making it the better choice for high-end builds.

Why Cooler Master V850 SFX Gold 850W Fully Modular is better

Power Output

850W vs 750W

Efficiency

80 Plus Gold vs Bronze

Modular Design

Fully modular vs semi-modular

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

Price

$75.99 vs $153.25

Warranty

5 years vs 10 years

Cooling Fan Size

120mm vs 92mm

Overall score

Cooler Master V850 SFX Gold 850W Fully Modular
90
Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
75

Specifications

SpecCooler Master V850 SFX Gold 850W Fully ModularThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
Power Output850W750W
Efficiency Rating80 Plus Gold80 Plus Bronze
Modular DesignFully ModularSemi-Modular
Cooling Fan92mm FDB120mm FDB
Warranty10 Years5 Years

Dimension comparison

Cooler Master V850 SFX Gold 850W Fully ModularThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Overview of Both Power Supplies

The Cooler Master V850 SFX Gold 850W and the Thermaltake Smart BM3 750W are two distinct power supplies designed to cater to different user needs. The V850 SFX Gold is priced at $153.25, while the Smart BM3 comes at a significantly lower price of $75.99, making it about 50% cheaper than its competitor. Although both power supplies are certified to meet ATX 3.1 standards, they differ in terms of features and performance, which may influence your purchasing decision.

Power Output Comparison

The Cooler Master V850 SFX Gold offers a robust 850W power output, designed to support high-performance gaming rigs and creative workstations. In contrast, the Thermaltake Smart BM3 provides a slightly lower output of 750W. This 100W difference may be crucial for users planning to push the limits of their hardware. The V850 is particularly appealing for those using multiple high-end GPUs, while the Smart BM3 can adequately power most mid-range systems and casual gaming setups.

Efficiency Ratings

When it comes to efficiency, the Cooler Master V850 SFX Gold shines with its 80 Plus Gold certification, ensuring an efficiency rating of about 90%. This level of efficiency translates to less wasted energy and lower electricity bills over time. On the other hand, the Thermaltake Smart BM3 is certified with an 80 Plus Bronze rating, which offers a lower efficiency of around 85% at 115V. The difference in efficiency ratings can impact long-term operating costs, particularly for users who run their systems continuously.

Modular Design

The Cooler Master V850 SFX Gold features a fully modular design, allowing users to connect only the cables they need. This design helps reduce clutter within the case and enhances airflow, which is particularly beneficial in compact builds. Conversely, the Thermaltake Smart BM3 is a semi-modular power supply, which means that some cables are permanently attached. While this may suffice for many users, it could lead to unnecessary clutter and potentially reduced airflow in systems with restricted space.

Cooling Solutions

Cooling is vital for maintaining system performance, and both power supplies incorporate advanced cooling technologies. The Cooler Master model comes with a 92mm fluid dynamic bearing fan designed for low noise and effective cooling. Meanwhile, the Smart BM3 is equipped with a 120mm fluid dynamic bearing fan that includes a Smart Zero Fan function, ensuring the fan remains off during low loads to minimize noise. While both fans are effective, the larger fan in the Thermaltake unit may provide slightly better airflow under high load conditions.

Build Quality and Components

The Cooler Master V850 SFX Gold emphasizes high build quality with 100% Japanese capacitors, which contribute to improved efficiency and lower ripple noise. This focus on quality components is indicative of its higher price point. The Thermaltake Smart BM3 also utilizes Japanese capacitors rated for high temperatures (105°C/221°F), enhancing its durability. However, the overall quality and performance may not match that of the Cooler Master, especially under heavy loads.

Warranty and Support

In terms of warranty, the Cooler Master V850 SFX Gold offers an impressive 10-year warranty, reflecting the brand's confidence in its product's longevity and reliability. The Thermaltake Smart BM3, while still respectable, provides a 5-year warranty. Users who prioritize long-term reliability may find the extended warranty of the V850 more appealing, especially for high-performance systems where stability is crucial.

Which should you buy?

Choosing between the Cooler Master V850 SFX Gold and the Thermaltake Smart BM3 ultimately depends on your specific needs and budget. The V850 is a premium option that offers higher power output, better efficiency, and a fully modular design, making it ideal for high-performance builds. However, it comes at a higher cost of $153.25. The Smart BM3, priced at $75.99, is more budget-friendly and still provides solid performance for general use and mid-range systems, though it lacks some of the advanced features found in the Cooler Master. If you are building a high-end system and willing to invest, the V850 is the better choice. For value-oriented users looking for a reliable power supply without breaking the bank, the Smart BM3 is a compelling option.