Apevia or Thermaltake? PC Power Supplies Compared in 2026
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You are looking at thermaltake vs apevia PC power supply options that serve very different builds. Both units provide stable DC power to your system components, but they target opposite ends of the market. The Apevia model is a low-wattage TFX unit for small cases. The Thermaltake is a high-wattage ATX unit for standard desktops. This comparison focuses on their published specifications to help you pick the right fit.
Key differences
| Aspect | Apevia 300W TFX Power Supply | Thermaltake Toughpower Grand 850W Gold PSU |
|---|---|---|
| Form Factor | TFX | ATX |
| Wattage | 300W | 850W |
| Efficiency Rating | not listed | 80 PLUS Gold |
| Modularity | not listed | Fully Modular |
| Fan Size | 80mm | 14cm |
Which one should you choose?
Choose Apevia 300W TFX Power Supply if
- You need a compact TFX power supply for a small form factor case.
- Your system requires low wattage around 300W.
- You are building a basic PC with minimal power demands.
Choose Thermaltake Toughpower Grand 850W Gold PSU if
- You need a standard ATX power supply for a full-size tower.
- You want high efficiency with 80 PLUS Gold certification.
- You prefer fully modular cables for cleaner cable management.
Verdict: Choose the Apevia if you are building a small form factor PC with low power needs. Pick the Thermaltake if you need a standard ATX unit with high efficiency and modular cables for a more powerful system.
Apevia vs Thermaltake PSU Comparison
form factor
The Apevia TFX-AP300W uses a compact TFX form factor, measuring 6.75 inches long, 3.23 inches wide, and 2.5 inches high. This small footprint is designed specifically for mini-ITX cases and small form factor builds where space is tight. The Thermaltake Toughpower Grand is a standard ATX unit. It measures 13.3 inches long, 8.27 inches wide, and 6.18 inches high. This larger size fits standard mid-tower and full-tower cases. You must choose the form factor that matches your case dimensions. The Apevia wins for small builds, while the Thermaltake wins for standard cases.
wattage output
Power requirements differ significantly between these two units. The Apevia provides 300W of total power output. This is suitable for low-power office PCs or basic systems with minimal components. The Thermaltake delivers 850W of continuous power. It is rated to run at 50°C for 24/7 operation. This high wattage supports high-end gaming rigs, workstations, or cryptocurrency mining setups. If you need power for modern GPUs, the Thermaltake is the only viable option. The Apevia lacks the capacity for demanding hardware. The Thermaltake clearly wins for performance builds.
efficiency rating
Energy efficiency impacts your electricity bill and system heat. The Thermaltake Toughpower Grand holds an 80 PLUS Gold certification. It achieves 87% to 93% efficiency under loads between 20% and 100%. This reduces wasted energy as heat. The Apevia TFX-AP300W does not list an 80 PLUS certification in its specifications. Without this rating, it likely operates at lower efficiency, wasting more power as heat. Higher efficiency also means less strain on the unit. The Thermaltake wins for energy savings and thermal management.
modularity
Cable management affects airflow and case cleanliness. The Thermaltake Toughpower Grand is fully modular. This means you can detach all cables and only connect what you need. This reduces clutter and improves airflow inside your case. The Apevia TFX-AP300W is a fixed-cable unit. All cables are permanently attached to the power supply. You cannot remove unnecessary cables. This can lead to messier builds in tight spaces. The Thermaltake wins for clean cable management and flexibility.
voltage regulation
Stable voltage ensures component longevity. The Apevia specifies a 5% tolerance for its +5V, +3.3V, and +12V outputs. This is a standard specification for many entry-level units. The Thermaltake Toughpower Grand complies with Intel ATX 12V 2.3 and SSI EPS 12V 2.92 standards. These standards enforce strict voltage ripple and regulation limits. While specific tolerance percentages are not listed for the Thermaltake, compliance with these newer standards implies tighter control. The Thermaltake wins for stricter industry compliance.
fan cooling
Cooling fans affect noise and lifespan. The Apevia uses a single 80mm fan. Smaller fans often spin faster to move the same amount of air, which can increase noise levels. The Thermaltake uses a 14cm flower-shape fan with dual ball bearings. Larger fans can move more air at lower speeds, reducing noise. The dual ball bearing design is rated for longer lifespan and reduced friction. The Thermaltake wins for quieter operation and potentially longer fan life.
Which PSU fits your build needs
Small form factor builders
You need a compact power supply for a mini-ITX case. This Apevia unit measures 6.75 by 3.23 by 2.5 inches. Its TFX form factor fits tight spaces. It delivers 300W of power. The 80mm fan provides forced air ventilation. It is designed for systems with modest power requirements.
High performance desktop users
You require high wattage and efficiency for a standard ATX build. This Thermaltake unit offers 850W of continuous power. It carries an 80 PLUS Gold certification for high efficiency. The fully modular design simplifies cable management. It supports Intel ATX 12V 2.3 standards. It uses durable Japanese capacitors for reliability.
Cryptocurrency mining enthusiasts
You need a reliable power source for mining hardware. This Thermaltake model is marketed specifically for cryptocurrency mining. It guarantees 850W continuous operation at 50 degrees Celsius. The 14cm fan helps lower noise output. It uses 105-degree capacitors for harsh environments. The high efficiency rating helps reduce electricity costs during long runs.
The products compared
Apevia 300W TFX Power Supply
Best for: Small form factor low-power builds
- Wattage
- 300W
- Fan Size
- 80mm
- Form Factor
- TFX
- Dimensions
- 6.75 × 3.23 × 2.5 inches
- Weight
- 2.1 pounds
View on Amazon: Apevia 300W TFX Power Supply Affiliate link
This is a 300W TFX power supply designed for compact builds. It features an 80mm fan and supports 115-230V AC input. The unit provides +12V at 20A, along with +3.3V and +5V rails. It measures 6.75 by 3.23 by 2.5 inches. This unit suits users needing a small form factor PSU for low-power systems.
Pros
- Compact TFX form factor
- 300W total wattage
- 80mm cooling fan
- Supports 115-230V AC input
Cons
- Low 300W capacity
- No 80 PLUS efficiency certification listed
- Small 80mm fan may run louder
Good fit if
- You need a TFX power supply
- You are building a low-power PC
- You require 115-230V input support
Skip if
- You need more than 300W
- You require high efficiency ratings
- You are building a high-end gaming PC
Verdict: Apevia 300W TFX Power Supply fits small cases with modest power needs. It is not suitable for high-performance systems requiring more wattage.
Thermaltake Toughpower Grand 850W Gold PSU
Best for: mining rigs and large cases
- 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 Thermaltake unit delivers 850W of continuous power at 50°C. It carries an 80 PLUS Gold efficiency rating, reaching up to 93% efficiency under load. The fully modular design and ATX 12V 2.3 compliance suit crypto mining or high-end builds. Its 14cm fan and Japanese capacitors aim for reliability in 24/7 operation.
Pros
- 80 PLUS Gold efficiency up to 93%
- Fully modular cable management
- 14cm fan reduces noise
- Japanese capacitors for reliability
Cons
- Large 13.3-inch length
- Heavy 6-pound build
- Standard ATX 2.3 standard
Good fit if
- You need 850W for mining
- You want high efficiency
- You prefer fully modular cables
Skip if
- You have a small case
- You need 1200W or more
- You require ATX 3.0
Verdict: Thermaltake Toughpower Grand 850W Gold is a reliable high-wattage option for mining rigs or large cases where space is not a constraint.
Specifications side by side
| Spec | Apevia 300W TFX Power Supply | Thermaltake Toughpower Grand 850W Gold PSU |
|---|---|---|
| Wattage | 300W | 850W |
| Efficiency Rating | not stated | 80 PLUS Gold |
| Modularity | not stated | Fully Modular |
| ATX Version | not stated | ATX 12V 2.3 |
| Fan Size | 80mm | 14cm |
| Form Factor | TFX | ATX |
| Size | TFX 300W | 850W |
| Dimensions | 6.75 × 3.23 × 2.5 inches | 13.3 × 8.27 × 6.18 inches |
| Weight | 2.1 pounds | 6 pounds |
| Color | Black | not stated |
| Model | TFX-AP300W | PS-TPG-0850MPCGUS-1 |
Frequently asked questions
Can I use the Apevia 300W TFX for a gaming PC?
No, the Apevia 300W TFX is not suitable for high-performance gaming systems. It is designed specifically for small form factor builds with modest power needs. Gaming PCs typically require more wattage than 300W to run graphics cards and processors effectively. You should choose a higher-wattage unit for gaming.
Is the Thermaltake Toughpower Grand fully modular?
Yes, the Thermaltake Toughpower Grand 850W is a fully modular power supply. This means you can connect only the cables you need, which helps with cable management and airflow. It uses the standard ATX form factor and provides 850W of power, making it ideal for large cases or mining rigs.
Which PSU is better for mining rigs?
The Thermaltake Toughpower Grand 850W is the better choice for mining rigs. It delivers 850W of power and features an 80 Plus Gold efficiency rating. Its ATX form factor fits large cases where space is not a constraint. The Apevia 300W unit lacks the necessary wattage for such demanding tasks.
What are the dimensions of the Apevia TFX power supply?
The Apevia TFX-AP300W measures 6.75 inches in length, 3.23 inches in width, and 2.5 inches in height. It weighs 2.1 pounds. These compact dimensions allow it to fit into small form factor cases that require a TFX power supply. It is significantly smaller than standard ATX units.
Does the Thermaltake PSU have an efficiency rating?
Yes, the Thermaltake Toughpower Grand 850W has an 80 Plus Gold efficiency rating. This indicates it converts AC power to DC power with high efficiency, reducing waste heat and energy consumption. It is a reliable high-wattage option for systems that require stable power delivery over long periods.
Can the Thermaltake Toughpower fit in a small case?
No, the Thermaltake Toughpower Grand 850W is an ATX unit measuring 13.3 inches long, 8.27 inches wide, and 6.18 inches high. It is designed for large cases where space is not a constraint. It will not fit in small form factor cases that require a TFX power supply like the Apevia.
Is the Apevia PSU suitable for a workstation?
The Apevia 300W TFX is not suitable for workstations requiring high performance. It is best for small cases with modest power needs. Workstations often use powerful CPUs and GPUs that draw more than 300W. You should look for a higher-wattage power supply for such demanding professional applications.
What is the weight difference between the two PSUs?
The Apevia TFX weighs 2.1 pounds, while the Thermaltake Toughpower Grand weighs 6 pounds. The Thermaltake unit is significantly heavier due to its larger size and higher power capacity. The Apevia unit is lightweight, which is typical for compact TFX power supplies designed for small form factor builds.