Apevia 300W TFX Power Supply vs Apevia Spirit 600W ATX Power (2026): Key Differences
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You are comparing the apevia tfx ap300w 300w tfx power vs spirit600w spirit 600w atx. Both units include standard protections and use forced air cooling. The main difference lies in their form factor and power output. The TFX model is designed for compact cases with lower wattage needs. The ATX Spirit offers higher power for standard desktop builds. You must choose based on your case size and hardware requirements.
Key differences
| Aspect | Apevia 300W TFX Power Supply | Apevia Spirit 600W ATX Power Supply |
|---|---|---|
| Form Factor | TFX | ATX |
| Wattage | 300W | 600W |
| Fan Size | 80mm | 120mm |
| Dimensions | 3.23 x 2.5 x 6.75 inches | 5.91 x 3.35 x 6.3 inches |
| +12V Rail | 20A | 45A |
Which one should you choose?
Choose Apevia 300W TFX Power Supply if
- You need a power supply for a small form factor case that requires a TFX form factor.
- Your system has low power demands and only requires up to 300W total output.
- You are building a compact PC where the 80mm fan and smaller dimensions fit your chassis.
Choose Apevia Spirit 600W ATX Power Supply if
- You are building a standard ATX desktop case that requires a larger power supply.
- Your system uses high-power components that need up to 600W and a strong 12V rail.
- You prefer a larger 120mm fan for potentially quieter operation at higher loads.
Verdict: The TFX AP300W is the correct choice for compact builds with strict space and power limits. The Spirit 600W ATX is better for standard desktops that require more power and flexibility. Select the unit that matches your case size and component power draw.
TFX Compact vs ATX Power
form factor
The Apevia 300W TFX Power Supply uses a TFX form factor, measuring 6.75 inches in length, 3.23 inches in width, and 2.5 inches in height. This compact size suits small cases. The Apevia Spirit 600W ATX Power Supply follows the standard ATX shape, measuring 6.3 inches in length, 5.91 inches in width, and 3.35 inches in height. ATX units fit most standard desktop towers. You must choose the form factor that matches your case dimensions. TFX is for tight spaces, while ATX is for general builds.
power output
Total wattage differs significantly between these two units. The Apevia 300W TFX Power Supply delivers 300W of total power. The Apevia Spirit 600W ATX Power Supply provides 600W of total power. The Spirit unit offers double the power capacity. This higher output supports more demanding components and multiple devices. The TFX model is limited to lower power requirements. You should select the Spirit if you need higher wattage for gaming or heavy workloads. The TFX is suitable only for basic systems.
voltage regulation
Voltage stability is crucial for component safety. The Apevia 300W TFX Power Supply specifies a 5% tolerance for its 5V, 3.3V, and 12V outputs. This indicates a standard regulation level. The Apevia Spirit 600W ATX Power Supply lists specific amperage ratings for each rail but does not explicitly state a percentage tolerance in the provided data. Both units offer protections against over-voltage and under-voltage. Without explicit tolerance data for the Spirit, we rely on the TFX's stated 5% tolerance. This makes the TFX slightly clearer in its regulation specs.
12v rail design
The 12V rail handles most modern hardware loads. The Apevia 300W TFX Power Supply provides 20A on its single 12V rail. The Apevia Spirit 600W ATX Power Supply offers a much higher 45A on its single 12V output. The Spirit unit supports dual, quad, and multi-core CPUs with this robust 12V delivery. This design allows for higher power usage for graphics cards and processors. The TFX unit is limited to 20A, which restricts high-end component support. The Spirit is superior for power-hungry systems.
cooling fan
Fan size affects airflow and noise levels. The Apevia 300W TFX Power Supply uses an 80mm fan for forced air ventilation. The Apevia Spirit 600W ATX Power Supply features a larger 120mm fan. Larger fans typically move more air at lower speeds, potentially reducing noise. The Spirit unit describes its fan as auto-thermally controlled. The TFX unit also uses forced air but with a smaller fan. The larger 120mm fan on the Spirit unit generally offers better thermal management for higher wattage components.
Which Apevia power supply fits you
Small form factor PC builders
You need a compact power supply for a small case. The Apevia 300W TFX measures 6.75 by 3.23 by 2.5 inches. It uses a TFX form factor that fits tight spaces. The 80mm fan provides forced air ventilation. This model is the only choice for cases requiring this specific size.
Users needing higher wattage
You require more power for your components. The Apevia Spirit 600W ATX delivers 600W total output. It provides 45A on the +12V rail, which supports modern CPUs and GPUs. The 120mm fan helps manage heat at higher loads. This unit offers significantly more power than the 300W TFX model.
Standard ATX case owners
You are building in a standard ATX case. The Spirit 600W uses the ATX form factor, which fits most mid-tower and full-tower chassis. It includes a 24-pin main connector and multiple SATA and Molex outputs. The 120mm fan is standard for this form factor, ensuring compatibility with typical PC builds.
The products compared
Apevia 300W TFX Power Supply
Best for: Small TFX cases with low power needs
- 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 Apevia TFX-AP300W is a 300W standard power supply built for TFX cases. It uses a single 80mm fan for forced air ventilation. The unit supports an input voltage of 115-230V AC. Output rails include +12V at 20A and +5V at 12A. It measures 6.75 inches long and weighs 2.1 pounds. You should choose this if you need a compact form factor for small builds.
Pros
- Compact TFX form factor fits small cases
- 300W total wattage output
- Supports 115-230V AC input voltage
- Includes All PSU Protections
Cons
- 300W wattage is lower than the 600W competitor
- 80mm fan is smaller than the competitor's 120mm fan
- Single 12V rail at 20A limits high-power components
Good fit if
- You are building in a TFX case
- You need a compact power supply
- Your system draws under 300W
Skip if
- You require an ATX form factor
- Your system needs over 300W
- You prefer a larger 120mm fan
Verdict: Apevia 300W TFX Power Supply fits users with small TFX cases who do not need high wattage. It is not suitable for ATX builds or systems requiring more than 300W.
Apevia Spirit 600W ATX Power Supply
Best for: Standard ATX cases needing 600W
- Wattage
- 600W
- PCIe Connector Type
- 6+2pin
- Fan Size
- 120mm
- Form Factor
- ATX
- Dimensions
- 6.3 × 5.91 × 3.35 inches
View on Amazon: Apevia Spirit 600W ATX Power Supply Affiliate link
This Apevia Spirit unit delivers 600W of power through a single 12V rail rated at 45A. It uses a 120mm fan for thermal control and includes standard ATX connectors. You get a 24-pin main cable, an 8-pin CPU connector, and two 8-pin PCIe connectors. The black sandblasted casing measures 6.3 by 5.91 by 3.35 inches. It suits builders needing higher wattage than the 300W TFX option.
Pros
- 600W total output with a dedicated 45A 12V rail
- 120mm auto-thermally controlled fan
- Includes 8-pin CPU and dual 8-pin PCIe connectors
- Full set of heavy-duty protections
Cons
- Bulkier ATX form factor compared to TFX units
- Non-modular fixed cable design
- Requires full cable connection to power on
Good fit if
- You need 600W for a standard ATX case
- You require an 8-pin CPU power connector
- You want a single 12V rail for high power usage
Skip if
- You are building in a small TFX case
- You need a modular cable system
- You only require 300W of power
Verdict: Apevia Spirit 600W ATX PSU fits users who need higher wattage and an 8-pin CPU connector in a standard ATX case. It is not suitable for small form factor builds.
Specifications side by side
| Spec | Apevia 300W TFX Power Supply | Apevia Spirit 600W ATX Power Supply |
|---|---|---|
| Wattage | 300W | 600W |
| PCIe Connector Type | not stated | 6+2pin |
| Fan Size | 80mm | 120mm |
| Form Factor | TFX | ATX |
| Dimensions | 6.75 × 3.23 × 2.5 inches | 6.3 × 5.91 × 3.35 inches |
| Weight | 2.1 pounds | not stated |
| Size | TFX 300W | not stated |
| Color | Black | not stated |
| Model | TFX-AP300W | SPIRIT600W |
Frequently asked questions
Can I install the Apevia 300W TFX in a standard ATX case?
No, you cannot. The Apevia 300W TFX Power Supply uses a TFX form factor, which has different mounting holes and dimensions than ATX units. It measures 6.75 by 3.23 by 2.5 inches. Standard ATX cases are designed for larger ATX power supplies. You would need a case specifically built for TFX components to use this unit.
Does the Apevia Spirit 600W fit in small SFF cases?
No, it does not. The Apevia Spirit 600W ATX Power Supply is an ATX unit. It measures 6.3 inches in length, 5.91 inches in width, and 3.35 inches in height. This size is too large for most small form factor cases. You should choose the TFX model if your case has limited space for power components.
What is the wattage difference between these two power supplies?
The Apevia Spirit 600W provides 600 watts of power. The Apevia 300W TFX Power Supply provides 300 watts. This is a difference of 300 watts. You need the higher wattage unit for systems with powerful graphics cards or multiple drives. The lower wattage unit is sufficient for basic office or light home computers.
Which model includes a 120mm fan for cooling?
The Apevia Spirit 600W ATX Power Supply includes a 120mm fan. This fan helps dissipate heat from the higher wattage components. The TFX model does not list a 120mm fan in its specifications. It typically uses an 80mm fan to fit its smaller chassis. The fan size affects noise levels and airflow efficiency.
Is the Apevia Spirit 600W suitable for gaming builds?
Yes, it is suitable for many gaming builds. It provides 600 watts of power and uses the standard ATX form factor. This allows it to fit in most mid-tower and full-tower cases. You can connect high-power components like dedicated graphics cards. The 300W TFX model is not recommended for gaming due to its lower power output.
What are the physical dimensions of the Apevia Spirit 600W?
The Apevia Spirit 600W measures 6.3 inches in length, 5.91 inches in width, and 3.35 inches in height. These dimensions follow the standard ATX power supply specifications. You can verify that your ATX case can accommodate these measurements before purchasing. The TFX model is significantly smaller in all three dimensions.
Can I use the TFX model for a high-performance workstation?
No, you should not. The Apevia 300W TFX Power Supply is limited to 300 watts. High-performance workstations often require more power for CPUs and GPUs. This unit is best for basic tasks or compact builds with low power needs. You would need the 600W ATX model for a high-performance system.