Msi or Thermaltake? PC Power Supplies Compared in 2026
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When you compare msi vs thermaltake PC power supply options, you find two 850W units that both carry 80 Plus Gold certification and offer full modularity. The MSI MAG A850GL targets modern gaming rigs with ATX 3.1 support and PCIe 5.1 readiness. The Thermaltake Toughpower Grand focuses on mining durability with 24/7 load guarantees. Both deliver steady power, but their design philosophies differ significantly. You need to check the specific standards and physical dimensions to see which fits your build better.
Key differences
| Aspect | MSI MAG 850W Fully Modular ATX Power Supply | Thermaltake Toughpower Grand 850W Gold PSU |
|---|---|---|
| ATX Version | ATX 3.1 | ATX 12V 2.3 |
| PCIe Version | PCIe 5.1 | Not listed |
| Warranty | 10 Year | Not listed |
| Fan Size | Not listed | 14cm |
| Dimensions | 12 x 8.75 x 4.92 inches | 13.3 x 8.27 x 6.18 inches |
Which one should you choose?
Choose MSI MAG 850W Fully Modular ATX Power Supply if
- You need native support for the latest PCIe 5.1 graphics cards via the 12V-2x6 connector.
- You are building a compact case where the shorter 12-inch length of the MSI unit matters.
- You want a clear 10-year warranty coverage for long-term reliability.
Choose Thermaltake Toughpower Grand 850W Gold PSU if
- You require a power supply rated for continuous 24/7 operation at high temperatures.
- You prefer a unit with a specified 14cm fan for potentially lower noise output.
- You are building for cryptocurrency mining or similar high-load, continuous workloads.
Verdict: The MSI MAG A850GL is the better choice for modern gaming builds due to its ATX 3.1 standard and PCIe 5.1 readiness. The Thermaltake Toughpower Grand is more suitable for users prioritizing continuous load stability and specific fan specifications. Your decision depends on whether you need the latest connector standards or proven high-load durability.
MSI vs Thermaltake PSU Comparison
ATX version support
The MSI MAG A850GL supports the newer ATX 3.1 standard, making it ready for the latest motherboard and component requirements. This version includes specific guidelines for modern power delivery. The Thermaltake Toughpower Grand adheres to the older ATX 12V 2.3 standard. While reliable, this version lacks the specific updates found in ATX 3.1. If you are building a new system with the latest hardware, the newer standard provides better compatibility and future-proofing. The Thermaltake unit is compliant with SSI EPS 12V 2.92, which is useful for server-grade stability, but the MSI version aligns better with current consumer PC trends.
PCIe connector type
The MSI MAG A850GL features a 12V-2x6 connector, which is part of the PCIe 5.1 readiness specification. This connector is designed for modern graphics cards and offers a secure connection with improved safety features. The Thermaltake Toughpower Grand does not list a specific PCIe connector type in its data. It relies on standard ATX 12V 2.3 outputs. For users with the newest GPUs that require the 12VHPWR or updated 12V-2x6 interfaces, the MSI unit provides the necessary native support without needing adapters. The Thermaltake unit may require adapters for the very latest cards, depending on its specific cable configuration.
physical dimensions
The Thermaltake Toughpower Grand has a height of 6.18 inches, which is the standard ATX height. The MSI MAG A850GL is significantly shorter at 4.92 inches in height. This compact form factor allows the MSI unit to fit into smaller cases or cases with limited vertical clearance. The Thermaltake unit is also longer at 13.3 inches compared to the MSI's 12 inches. The shorter height of the MSI unit is a practical advantage for airflow and case compatibility. You should check your case specifications to ensure the shorter MSI unit fits properly, as some cases are designed for standard height units.
efficiency rating
Both power supplies carry the 80 Plus Gold certification, indicating high efficiency in converting AC power to DC power. The Thermaltake Toughpower Grand specifies an efficiency range of 87-93% at 20-100% load. This consistent performance helps reduce electricity costs and heat generation. The MSI MAG A850GL also holds the 80 Plus Gold rating, ensuring similar efficiency levels. Since both units meet the same certification standard, there is no significant difference in power waste or energy savings between them. You can expect both to run cooler and more efficiently than 80 Plus Bronze units, regardless of your specific load.
warranty coverage
The MSI MAG A850GL comes with a 10-year warranty, providing long-term protection for your investment. This extended coverage reflects confidence in the unit's durability. The Thermaltake Toughpower Grand does not list a specific warranty duration in the provided data. Without this information, it is unclear if it offers comparable long-term support. A 10-year warranty is a strong advantage for the MSI unit, as it reduces the risk of replacement costs over time. You should verify the warranty terms for the Thermaltake unit separately if this is a critical factor for your decision.
Which PSU fits your build needs
Modern gaming PC builders
This unit supports ATX 3.1 and PCIe 5.1 standards. It features a 12V-2x6 connector for next-gen graphics cards. The 10-year warranty offers long-term security. You get efficient power delivery with 80 Plus Gold certification. This makes it ideal for contemporary high-performance gaming systems requiring the latest connection standards.
Users prioritizing compact dimensions
The MSI model measures 8.75 by 4.92 by 12 inches. This compact form factor fits smaller cases better than larger alternatives. You benefit from full modularity to manage cable clutter efficiently. The 850W output handles demanding loads while maintaining a smaller physical footprint for tight hardware installations.
Budget-conscious buyers seeking reliability
This Thermaltake unit uses Japanese capacitors for stable performance. It guarantees 850W continuous power at 50 degrees Celsius. The 14cm fan design reduces noise and friction. You receive 80 Plus Gold efficiency to lower electricity costs. This model provides solid durability for sustained operation without requiring premium modern standards.
The products compared
MSI MAG 850W Fully Modular ATX Power Supply
Best for: modern gaming PCs with PCIe 5.1 GPUs
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MAG 850W Fully Modular ATX Power Supply Affiliate link
The MSI MAG A850GL is a fully modular 850W power supply designed for gaming systems. It meets ATX 3.1 and PCIe 5.1 standards, featuring a 12V-2x6 connector for modern graphics cards. The unit holds an 80+ Gold efficiency rating and includes a 10-year warranty. Its compact dimensions help fit into smaller cases while supporting high-power components.
Pros
- 850W output capacity for high-end builds
- ATX 3.1 and PCIe 5.1 compliance
- 12V-2x6 native connector for new GPUs
- 10-year warranty coverage
- Fully modular cable management
Cons
- 12-inch length may limit fit in small cases
- 8.75-inch width is standard but bulky
- No mention of fan noise levels in specs
Good fit if
- You need a PCIe 5.1 ready PSU for next-gen GPUs
- You want a 10-year warranty for long-term reliability
- You are building a standard ATX gaming PC
Skip if
- You have a small form factor case with tight length limits
- You require a 1000W or higher power output
- You prefer a non-modular design for simplicity
Verdict: MSI MAG A850GL 850W Gold suits gamers upgrading to PCIe 5.1 graphics cards who need a reliable 850W source with a decade of warranty support.
Thermaltake Toughpower Grand 850W Gold PSU
Best for: mining rigs and high-load stability
- Wattage
- 850W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 12V 2.3
- Fan Size
- 14cm
- Dimensions
- 13.3 × 8.27 × 6.18 inches
View on Amazon: Thermaltake Toughpower Grand 850W Gold PSU Affiliate link
This 850W power supply delivers continuous power at 50°C and carries an 80 PLUS Gold efficiency rating. It uses a 14cm fan and fully modular cables. Japanese capacitors support 24/7 operation. It suits miners or users needing stable high-wattage output. The design focuses on reliability under heavy loads rather than compact size.
Pros
- 80 PLUS Gold efficiency rating
- 14cm flower-shape dual ball bearing fan
- 100% Japanese electrolytic capacitors
- Fully modular cable design
Cons
- Large 13.3-inch length
- 6-pound weight
- ATX 12V 2.3 standard
Good fit if
- You need 850W for cryptocurrency mining
- You want 80 PLUS Gold efficiency
- You prefer fully modular cables
Skip if
- You need a compact SFX unit
- You require ATX 3.0 compatibility
- You want PCIe 5.0 native support
Verdict: Thermaltake Toughpower Grand 850W Gold is a heavy, long unit built for continuous 850W output. It fits miners who prioritize efficiency and capacitor quality over case compatibility.
Specifications side by side
| Spec | MSI MAG 850W Fully Modular ATX Power Supply | Thermaltake Toughpower Grand 850W Gold PSU |
|---|---|---|
| Wattage | 850W | 850W |
| Efficiency Rating | 80+ Gold | 80 PLUS Gold |
| Modularity | Fully Modular | Fully Modular |
| ATX Version | ATX 3.1 | ATX 12V 2.3 |
| PCIe Connector Type | 12V-2x6 | not stated |
| Fan Size | not stated | 14cm |
| Warranty | 10 Year | not stated |
| Form Factor | Compact | ATX |
| PCIe Version | PCIe 5.1 | not stated |
| Recommended Use | Gaming | not stated |
| Connector | 12V-2x6 Connector | not stated |
| Size | 850W (PCIE 5) | 850W |
| Dimensions | 12 × 8.75 × 4.92 inches | 13.3 × 8.27 × 6.18 inches |
| Weight | not stated | 6 pounds |
| Model | not stated | PS-TPG-0850MPCGUS-1 |
Frequently asked questions
Which PSU is better for a modern gaming PC?
The MSI MAG 850W is the better choice for modern gaming. It supports ATX 3.1 and PCIe 5.1 standards, which are essential for new graphics cards. The unit includes a 12V-2x6 connector for direct power delivery. This ensures compatibility with the latest hardware without needing adapters. The Thermaltake option lacks these specific modern features.
What is the difference in size between these two power supplies?
The MSI MAG unit is slightly shorter but taller and wider. It measures 12 inches in length, 8.75 inches in width, and 4.92 inches in height. The Thermaltake Toughpower Grand is longer at 13.3 inches but narrower and shorter in height. It also weighs six pounds. You should check your case dimensions to ensure the MSI unit fits your specific build.
Does either PSU support the latest PCIe 5.1 standard?
Yes, the MSI MAG 850W supports PCIe 5.1. It is designed for modern gaming PCs that use next-generation graphics cards. The unit features a native 12V-2x6 connector for stable power delivery. The Thermaltake Toughpower Grand does not list PCIe 5.1 support in its specifications. It is better suited for general high-load stability rather than the newest GPU standards.
Are both units fully modular?
Yes, both power supplies are fully modular. This means you can connect only the cables you need, which helps with cable management and airflow. The MSI MAG 850W offers this feature along with 80 Plus Gold efficiency. The Thermaltake Toughpower Grand also provides full modularity and 80 Plus Gold certification. You get clean builds with either option.
Which PSU is heavier?
The Thermaltake Toughpower Grand is the heavier unit. It weighs six pounds. This extra weight often indicates robust internal components like high-quality capacitors. The MSI MAG 850W does not list a specific weight in its data. However, its compact dimensions suggest a lighter build. You might prefer the Thermaltake if weight indicates durability to you.
Is the MSI PSU suitable for mining rigs?
The MSI MAG 850W is primarily recommended for modern gaming PCs. It focuses on PCIe 5.1 readiness and ATX 3.1 support. The Thermaltake Toughpower Grand is explicitly noted for mining rigs and high-load stability. It is built for continuous 850W output. If your goal is mining, the Thermaltake model is the more appropriate choice based on its design focus.
How long is the warranty on the MSI unit?
The MSI MAG 850W comes with a 10-year warranty. This provides long-term security for your investment in a gaming PC. The warranty covers defects and ensures reliability over a decade. The Thermaltake Toughpower Grand data does not specify a warranty period. You should verify the warranty terms directly with the manufacturer for the Thermaltake unit before purchasing.