MSI MPG A850G PCIE5, Fully Modular Compact Gaming vs Thermaltake Smart 500W 80+ White Certified PSU,
Updated July 2026 — MSI MPG A850G PCIE5, Fully Modular Compact Gaming wins on power and efficiency, Thermaltake Smart 500W 80+ White Certified PSU, wins on noise.
The MSI MPG A850G offers superior performance and features compared to the Thermaltake Smart 500W. For high-performance builds, the MSI is the clear winner.
Why MSI MPG A850G PCIE5, Fully Modular Compact Gaming is better
Power Output
MSI provides 850W vs Thermaltake's 500W
Efficiency
MSI has 80 PLUS Gold certification
Warranty
MSI offers a 10-year warranty vs 5 years for Thermaltake
Why Thermaltake Smart 500W 80+ White Certified PSU, is better
Price
Thermaltake is significantly cheaper at $39.99
Basic Needs
Adequate for budget builds
Cooling
Thermaltake has a quiet 120mm fan
Overall score
Specifications
| Spec | MSI MPG A850G PCIE5, Fully Modular Compact Gaming | Thermaltake Smart 500W 80+ White Certified PSU, |
|---|---|---|
| Modular | Fully | Non-modular |
| Cooling Fan | Low-noise | 120mm Ultra Quiet |
| Capacitors | 100% Japanese | High Quality |
| Standards | ATX 3.1, PCIe 5.1 | ATX 12V 2.31 |
| Protection | Standard | Industry Grade |
Dimension comparison
Introduction to Power Supplies
When it comes to building or upgrading a PC, selecting the right power supply unit (PSU) is crucial for ensuring performance and reliability. In this article, we will compare two power supplies: the MSI MPG A850G PCIE5 and the Thermaltake Smart 500W. Each offers unique features designed to cater to different types of users and builds.
Price Comparison
The MSI MPG A850G is priced at $109.99, while the Thermaltake Smart 500W comes in at a significantly lower price of $39.99. This means the MSI PSU is about 175% more expensive than its Thermaltake counterpart. The price difference reflects the capabilities and certifications of each unit, with the MSI model being a high-performance option aimed at gamers and overclockers, whereas the Thermaltake is suited for more basic needs.
Power Output and Efficiency
The MSI MPG A850G delivers a robust 850W of power, making it suitable for high-end gaming rigs and demanding applications. In contrast, the Thermaltake Smart 500W provides a maximum output of 500W, which may be adequate for more budget-conscious builds. Additionally, the MSI model boasts an 80 PLUS Gold certification, indicating up to 90% efficiency under typical loads, while the Thermaltake achieves 80% efficiency at 20-100% loads, certifying it as 80 PLUS White.
Build Quality and Components
The MSI MPG A850G features 100% Japanese 105°C capacitors, which are known for their reliability and long lifespan. This high-quality construction is a significant factor in its 10-year limited warranty. On the other hand, the Thermaltake Smart 500W, while using high-quality components, offers a shorter warranty of 5 years. Users looking for longevity may prefer the MSI, given its superior build quality.
Modular Design
One of the standout features of the MSI MPG A850G is its fully modular design, which allows users to connect only the cables they need. This significantly reduces cable clutter and enhances airflow within the case. In contrast, the Thermaltake Smart 500W does not offer a fully modular design, which might lead to a messier build, particularly in systems that require fewer cables. The modularity of the MSI model makes it an excellent choice for those who prioritize aesthetics and cooling.
Cooling Mechanisms
Cooling capabilities are essential for maintaining optimal performance in high-demand scenarios. The MSI MPG A850G is designed to operate quietly, thanks to its low-noise operation. The Thermaltake Smart 500W features a 120mm ultra-quiet cooling fan that provides adequate airflow while maintaining a low noise level. Both units are designed with efficient cooling in mind, but the MSI's advanced design may offer better thermal management for high-performance systems.
Compatibility
The MSI MPG A850G is compatible with the latest ATX 3.1 and PCIe 5.1 standards, ensuring that it can support the latest graphics cards and motherboards. On the other hand, the Thermaltake Smart 500W complies with Intel ATX 12 Volt 2.31 and EPS 12V 2.92 standards, making it suitable for mainstream builds but potentially limiting in high-performance scenarios. Users planning to utilize cutting-edge hardware may find the MSI's compatibility more appealing.
Warranty and Support
Warranty periods can indicate a manufacturer’s confidence in their product’s longevity. The MSI MPG A850G comes with a 10-year warranty, reflecting its premium build quality and performance expectations. In comparison, the Thermaltake Smart 500W offers a more modest 5-year warranty. This difference may influence buyers who seek long-term reliability and support for their investment, with the MSI model standing out in this regard.
Which should you buy?
Choosing between the MSI MPG A850G and the Thermaltake Smart 500W ultimately depends on your specific needs and budget. If you are building a high-performance gaming rig or require a power supply that can handle demanding applications, the MSI MPG A850G is the clear choice with its 850W output, 80 PLUS Gold certification, fully modular design, and long warranty. However, if you are looking for a cost-effective solution for a standard build, the Thermaltake Smart 500W offers excellent value with decent performance at a much lower price point. Each unit caters to different user requirements, making your choice pivotal based on your unique gaming and computing needs.

