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GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus vs Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Updated August 2026 — GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus wins on modularity and capacitors, Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & wins on warranty.

The GIGABYTE UD750GM PG5 V2 ICE offers superior efficiency and performance, making it the better choice for high-end users. The Thermaltake Smart BM3 is a solid budget option.

Why GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus is better

Efficiency

80 Plus Platinum certification vs Bronze

Design

Fully modular vs semi-modular

Performance

Better cooling solution

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

Price

Lower price point

Warranty

5-year warranty

Noise Control

Smart Zero Fan function

Overall score

GIGABYTE UD750GM PG5 V2 ICE - 750W 80 Plus
88
Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
80

Specifications

SpecGIGABYTE UD750GM PG5 V2 ICE - 750W 80 PlusThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &
Certification80 Plus Platinum80 Plus Bronze
ModularityFully ModularSemi-Modular
Cooling Fan120mm Hydraulic120mm FDB
Japanese CapacitorsYesYes
PCIe SupportGen 5.1Gen 5

Dimension comparison

GIGABYTE UD750GM PG5 V2 ICE - 750W 80 PlusThermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 &

Overview of GIGABYTE UD750GM PG5 V2 ICE and Thermaltake Smart BM3

The GIGABYTE UD750GM PG5 V2 ICE is priced at $79.99, while the Thermaltake Smart BM3 is slightly cheaper at $75.99, making it about 5% less expensive. Both power supplies offer a 750W capacity and are designed for the latest ATX 3.1 standards, but they cater to different user needs and preferences. The GIGABYTE model boasts an 80 Plus Platinum certification, indicating higher efficiency and better performance, while the Thermaltake provides an 80 Plus Bronze certification, which is still commendable but less efficient.

Build Quality and Design

The GIGABYTE UD750GM PG5 V2 ICE features a fully modular design, allowing for cleaner cable management and improved airflow within the case. It uses 100% Japanese capacitors known for their reliability and performance. In contrast, the Thermaltake Smart BM3 is semi-modular, which provides some flexibility but may not achieve the same level of neatness as a fully modular setup. The build quality of both units is solid, with the Thermaltake also utilizing Japanese capacitors rated for high temperatures (105°C/221°F), which enhances durability.

Performance and Efficiency

Performance-wise, the GIGABYTE UD750GM PG5 V2 ICE stands out with its 80 Plus Platinum certification, ensuring it operates with high efficiency, which can lead to lower electricity bills over time. This model supports PCIe Gen 5.1 graphics cards, making it future-proof for high-end gaming and workstation setups. The Thermaltake Smart BM3, while still compatible with PCIe Gen 5, features an 80 Plus Bronze rating, which means it has a lower efficiency than its counterpart. This difference can translate to slightly higher operational costs in the long run.

Cooling Solutions

Cooling is crucial for maintaining optimal performance during intensive tasks. The GIGABYTE UD750GM PG5 V2 ICE comes equipped with a 120mm smart hydraulic bearing fan, designed to operate quietly while efficiently cooling the components. The Thermaltake Smart BM3 also features a 120mm fluid dynamic bearing fan, but it includes a Smart Zero Fan function that prevents the fan from spinning until the load exceeds 20% of the power supply's capacity. This could reduce noise under light loads, but the GIGABYTE's fan is designed for continuous performance without compromising on noise levels.

Warranty and Support

In terms of warranty, the GIGABYTE UD750GM PG5 V2 ICE does not specify a warranty duration, which might be a consideration for potential buyers looking for long-term assurance. On the other hand, the Thermaltake Smart BM3 comes with a 5-year warranty, providing peace of mind for users who may be concerned about reliability over time. A longer warranty can often reflect a manufacturer’s confidence in their product’s longevity and performance.

User Target

The GIGABYTE UD750GM PG5 V2 ICE is aimed at high-end users, particularly gamers and professionals who require robust performance and efficiency. Its features make it an excellent choice for those investing in high-performance graphics cards and wanting to ensure their power supply is up to the task. Conversely, the Thermaltake Smart BM3 targets value-oriented users who still want modern features but at a more accessible price point. It is suitable for mid-range gaming setups and general computing needs, where budget constraints are a priority.

Pricing and Value Proposition

At $79.99, the GIGABYTE UD750GM PG5 V2 ICE is positioned at the higher end of the market, reflecting its premium features such as the 80 Plus Platinum certification and fully modular design. The Thermaltake Smart BM3, at $75.99, offers a more budget-friendly option while still providing essential features and good performance. The price difference of about $4 may not seem substantial, but it can influence buyers who are looking to maximize value without significantly compromising on quality.

Which should you buy?

Choosing between the GIGABYTE UD750GM PG5 V2 ICE and the Thermaltake Smart BM3 ultimately depends on your specific needs and budget. If you are looking for higher efficiency, a fully modular design, and superior performance for demanding applications, the GIGABYTE model is the clear choice. However, if you want a reliable power supply that meets modern standards at a slightly lower price, the Thermaltake Smart BM3 is an excellent alternative. Both power supplies are capable, but your preference for efficiency, design, and warranty will guide your decision.