Apevia 300W TFX Power Supply or Apevia Essence 600W Semi-Modular PSU? Which Apevia Model to Buy
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This comparison of apevia tfx ap300w 300w tfx power vs atx es600w essence 600w atx helps you choose the right unit for your build. Both power supplies provide essential protections and operate on standard AC input. The main difference is form factor and capacity. The Apevia TFX is a compact 300W unit for small cases. The Apevia Essence is a larger 600W semi-modular ATX unit for standard builds.
Key differences
| Aspect | Apevia 300W TFX Power Supply | Apevia Essence 600W Semi-Modular PSU |
|---|---|---|
| Form Factor | TFX | ATX |
| Wattage | 300W | 600W |
| Modularity | Not listed | Semi-Modular |
| Fan Size | 80mm | 120mm |
| +12V Output | 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 the TFX standard.
- Your system has low power demands under 300 watts.
- You prefer a fixed cable setup and do not need modular management.
Choose Apevia Essence 600W Semi-Modular PSU if
- You are building a standard ATX desktop computer.
- You need higher power capacity for gaming or multi-core CPUs.
- You want semi-modular cables to improve airflow and cable management.
Verdict: Choose the Apevia TFX if your chassis requires the smaller TFX form factor. Choose the Apevia Essence if you need more power and standard ATX dimensions. The Essence offers better modularity and higher current on the primary rail.
TFX 300W vs 600W ATX
Form factor
The Apevia 300W TFX Power Supply uses a TFX form factor, measuring 6.75 inches long, 3.23 inches wide, and 2.5 inches high. This compact size fits small form factor cases. The Apevia Essence 600W Semi-Modular PSU uses a standard ATX form factor. It measures 6.3 inches long, 5.91 inches wide, and 3.35 inches high. ATX is the standard for most mid-tower and full-tower cases. You must choose the form factor that matches your case. TFX is for tight spaces. ATX is for standard builds.
Wattage capacity
Power needs differ greatly between these two units. The Apevia 300W TFX Power Supply provides 300 watts of total power. This is suitable for low-power office PCs or basic systems. The Apevia Essence 600W Semi-Modular PSU provides 600 watts. This higher capacity supports gaming rigs and systems with dedicated graphics cards. The 600W unit offers double the power output. If you need more power for components, the 600W model is the clear choice. The 300W unit is limited to lighter loads.
+12V rail design
Modern components rely heavily on the +12V rail. The Apevia 300W TFX Power Supply lists a +12V output of 20A. This provides 240 watts on that rail. The Apevia Essence 600W Semi-Modular PSU supports a single 12V output with 45A. This provides 540 watts on the +12V rail. A single rail design simplifies power distribution for CPUs and GPUs. The 600W unit delivers significantly more current on the critical +12V line. This makes it much better for power-hungry components.
Modularity
Cable management affects airflow and case aesthetics. The Apevia Essence 600W Semi-Modular PSU is semi-modular. You connect essential cables like the 24-pin main and CPU power directly. Optional cables for drives and peripherals can be detached. This reduces clutter. The Apevia 300W TFX Power Supply is non-modular. All cables are fixed to the unit. You cannot remove unused cables. This may create more waste space inside your case. Semi-modularity offers better customization for cable routing.
Fan size
Cooling fans affect noise and airflow. The Apevia 300W TFX Power Supply uses an 80mm fan. Smaller fans often spin faster to move the same air, which can increase noise. The Apevia Essence 600W Semi-Modular PSU uses a 120mm fan. Larger fans can move more air at lower speeds. This typically results in quieter operation. The 120mm fan is generally preferred for better thermal management and lower noise levels in standard ATX cases.
Weight
Weight can indicate build quality and heat sink mass. The Apevia 300W TFX Power Supply weighs 2.1 pounds. The Apevia Essence 600W Semi-Modular PSU weighs 4.12 pounds. The heavier unit likely contains more substantial internal components to handle higher power loads. The difference is significant. Heavier power supplies often have better heat dissipation due to larger heatsinks. The 600W unit is nearly twice as heavy as the 300W unit.
Which Apevia PSU fits your build
Small form factor builders with tight cases
The TFX-AP300W measures 6.75 by 3.23 by 2.5 inches. This compact form factor fits small cases where standard ATX units do not. You get 300W of power with an 80mm fan. It supports +12V at 20A. Choose this if your chassis requires a TFX power supply for proper fit.
Gaming PCs needing higher power capacity
The Essence ATX-ES600W delivers 600W of power. It features a 120mm fan for cooling and a single 12V rail outputting 45A. This supports multi-core CPUs and gaming graphics cards. The 600W capacity handles higher loads than the 300W TFX model. Pick this for standard ATX cases requiring more wattage.
Users wanting cleaner cable management
This semi-modular design lets you connect only the cables you need. You receive a 20/24pin main connector, a 4+4pin CPU connector, and two 6+2pin PCIe connectors. Unused cables stay out of the case. This reduces clutter compared to the fully fixed cabling of the TFX model. It fits standard ATX builds.
Budget builds for basic office or home use
The 300W TFX unit provides essential power for low-demand systems. It includes protections for short circuits and over-voltage. The 80mm fan keeps temperatures stable. It is sufficient for basic computing tasks that do not require high wattage. Choose this if your system components draw less than 300W total.
The products compared
Apevia 300W TFX Power Supply
Best for: Small form factor PCs 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
The Apevia TFX-AP300W is a 300W TFX form factor power supply designed for compact PC builds. It features an 80mm fan for forced air ventilation and supports an input voltage range of 115-230V AC. The unit provides stable outputs with 5% tolerance on the 5V, 3.3V, and 12V rails. It measures 6.75 inches in length and weighs 2.1 pounds. This model suits users needing a small, reliable power source for space-constrained systems.
Pros
- 300W wattage output
- Compact TFX form factor
- 80mm cooling fan
- 5% voltage tolerance
Cons
- Lower 300W wattage limits high-end GPU use
- 80mm fan may be louder than larger units
- Fixed non-modular cable design
Good fit if
- You need a TFX power supply for a small form factor case
- You are building a low-power office or media PC
- You require 115-230V input flexibility
Skip if
- You need more than 300W of power
- You require an ATX form factor instead of TFX
- You want a semi-modular or fully modular cable setup
Verdict: Apevia TFX 300W Power Supply fits users with small cases who do not need high wattage. It provides essential power for basic systems without the bulk of larger ATX units.
Apevia Essence 600W Semi-Modular PSU
Best for: Standard ATX gaming builds
- Wattage
- 600W
- Modularity
- Semi-Modular
- PCIe Connector Type
- PCI 6+2pin
- Fan Size
- 120mm
- Form Factor
- ATX
- Recommended Use
- Gaming
View on Amazon: Apevia Essence 600W Semi-Modular PSU Affiliate link
The Apevia Essence 600W is a semi-modular ATX power supply designed for gaming builds. It delivers 600W total power with a single 12V rail providing 45A. The unit features a 120mm auto-thermally controlled fan and a black sandblasted casing. It includes comprehensive protections for short-circuit, over-current, and over-voltage scenarios. This model suits users needing reliable power for multi-core CPUs and modern graphics cards.
Pros
- 600W total output with 45A on the single 12V rail
- Semi-modular design reduces cable clutter
- 120mm auto-thermally controlled fan for cooling
- Includes 12 comprehensive heavy-duty protections
Cons
- ATX form factor limits use in small cases
- Semi-modular design requires managing fixed cables
- Heavier build at 4.12 pounds
Good fit if
- You need 600W for a standard ATX case
- You want a single 12V rail for high power usage
- You prefer semi-modular cable management
Skip if
- You are building in a small form factor case
- You require full modularity for clean builds
- You need more than 600W of power
Verdict: Apevia Essence 600W Semi-Modular ATX offers solid 12V performance and protections for standard gaming PCs. It fits well in mid-tower cases where its ATX size and semi-modular design are advantages.
Specifications side by side
| Spec | Apevia 300W TFX Power Supply | Apevia Essence 600W Semi-Modular PSU |
|---|---|---|
| Wattage | 300W | 600W |
| Modularity | not stated | Semi-Modular |
| PCIe Connector Type | not stated | PCI 6+2pin |
| Fan Size | 80mm | 120mm |
| Form Factor | TFX | ATX |
| Recommended Use | not stated | Gaming |
| Device Compatibility | not stated | PCs |
| Dimensions | 6.75 × 3.23 × 2.5 inches | 6.3 × 5.91 × 3.35 inches |
| Weight | 2.1 pounds | 4.12 pounds |
| Size | TFX 300W | not stated |
| Color | Black | not stated |
| Model | TFX-AP300W | ATX-ES600W |
Frequently asked questions
Is the Apevia 300W TFX good for gaming?
No. The Apevia 300W TFX Power Supply is best for small form factor PCs with low power needs. It provides essential power for basic systems without the bulk of larger ATX units. Gaming builds typically require higher wattage and stable 12V rails. This unit is designed for light tasks, not demanding graphics cards or high-end processors.
Can I use the Apevia Essence 600W in a small case?
Likely not. The Apevia Essence 600W Semi-Modular PSU has an ATX form factor. It measures 6.3 inches long, 5.91 inches wide, and 3.35 inches high. Small form factor cases usually require the compact TFX size. This larger unit is intended for mid-tower cases where its size and semi-modular design offer advantages for cable management.
What is the difference between TFX and ATX form factors?
The main difference is physical size and compatibility. TFX units like the 300W model are compact, measuring 6.75 by 3.23 by 2.5 inches. They fit small cases where standard ATX units do not fit. ATX units like the 600W Essence are larger, measuring 6.3 by 5.91 by 3.35 inches. They are standard for mid-tower and full-tower cases.
Does the Apevia Essence 600W have modular cables?
Yes. The Apevia Essence 600W Semi-Modular PSU features a semi-modular design. This means some cables are fixed to the unit, while others can be detached. This design helps reduce clutter inside your case. It fits well in mid-tower cases where managing cable bulk is important for airflow and aesthetics.
Which Apevia PSU is heavier?
The Apevia Essence 600W is heavier. It weighs 4.12 pounds. The Apevia 300W TFX Power Supply weighs 2.1 pounds. The difference in weight reflects the larger internal components and transformers in the 600W unit. Heavier units often indicate more robust construction, but the lighter TFX model is designed for portability and space-saving in small builds.
Is the Apevia 300W TFX suitable for a desktop computer?
It depends on your needs. It is best for small form factor PCs with low power needs. It provides essential power for basic systems. If your desktop requires high performance or multiple components, this 300W unit may not provide enough capacity. It is ideal for office PCs or media centers that do not draw significant power.
What color is the Apevia Essence 600W PSU?
The provided data does not specify the color of the Apevia Essence 600W Semi-Modular PSU. It only lists the model number ATX-ES600W and physical dimensions. The Apevia 300W TFX Power Supply is listed as black. You should check the product listing images for the exact color of the Essence model before purchasing.
Can the Apevia 300W TFX replace an ATX power supply?
No. The Apevia 300W TFX Power Supply uses a TFX form factor. It measures 6.75 by 3.23 by 2.5 inches. Standard ATX cases require larger ATX units. The Apevia Essence 600W uses the ATX form factor. You must match the form factor to your case. Using the wrong size will prevent the unit from fitting or connecting properly.

