EVGA or Apevia? PC Power Supplies Compared in 2026
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When comparing EVGA vs apevia PC power supply options, you are looking at two very different solutions. Both units provide essential power delivery for computer builds, but they serve distinct chassis types. The EVGA SuperNOVA NEX750B is a high-wattage, hybrid modular unit designed for standard ATX cases. In contrast, the Apevia TFX-AP300W is a compact, non-modular unit built for small form factor cases. Your choice depends entirely on your case size and power needs.
Key differences
| Aspect | EVGA SuperNOVA 750W Bronze Power Supply | Apevia 300W TFX Power Supply |
|---|---|---|
| Wattage | 750W | 300W |
| Form Factor | ATX | TFX |
| Modularity | Hybrid Modular | Non-Modular |
| Efficiency Rating | 80PLUS Bronze | not listed |
| Fan Size | not listed | 80mm |
Which one should you choose?
Choose EVGA SuperNOVA 750W Bronze Power Supply if
- You need a high-wattage unit for a standard ATX desktop case.
- You want better energy efficiency with 80PLUS Bronze certification.
- You prefer hybrid modularity to reduce cable clutter.
Choose Apevia 300W TFX Power Supply if
- You are building a small form factor PC that requires a TFX PSU.
- Your system has low power requirements under 300W.
- You need a compact unit that fits in tight spaces.
Verdict: The EVGA SuperNOVA NEX750B is the better choice for most standard desktops due to its higher wattage, efficiency rating, and modular design. The Apevia TFX-AP300W is strictly for small form factor builds where space is the primary constraint. Choose based on your case size and power demands.
EVGA vs Apevia PSU Comparison
Wattage and power
The EVGA SuperNOVA NEX750B delivers 750W of continuous power. This high output supports demanding components and multiple graphics cards in standard ATX cases. In contrast, the Apevia TFX-AP300W provides only 300W. This lower limit suits entry-level systems or office PCs with minimal power needs. You must choose based on your system's total draw. The EVGA unit offers significantly more headroom for upgrades. The Apevia model is strictly for low-power builds. This difference defines their respective use cases entirely.
Form factor
Physical size dictates which case you can use. The EVGA SuperNOVA NEX750B follows standard ATX dimensions, measuring 7.1 inches in length. It fits most mid-tower and full-tower chassis. The Apevia TFX-AP300W uses the TFX form factor, measuring 6.75 inches long but much narrower. This small footprint is designed for compact SFF or mini-ITX builds. You cannot swap these units freely. Your case must match the specific form factor of the power supply you select.
Efficiency rating
Efficiency affects electricity costs and heat output. The EVGA SuperNOVA NEX750B holds an 80PLUS Bronze certification. It reaches up to 85% efficiency under typical loads. This reduces wasted energy and heat generation. The Apevia TFX-AP300W lists no efficiency certification in its data. Without a rating, its efficiency is unknown. You cannot verify how much power it wastes as heat. The EVGA unit provides a verified standard for energy conservation, making it the safer choice for efficiency-conscious builders.
Modularity
Cable management impacts airflow and aesthetics. The EVGA SuperNOVA NEX750B features a hybrid modular design. This allows you to connect only the cables your system needs, reducing clutter inside the case. The Apevia TFX-AP300W is a non-modular unit. All cables are permanently attached. This can create excess cabling in tight spaces. The EVGA design offers better flexibility for clean builds. You will have more control over cable routing with the EVGA unit.
Fan and noise
Cooling mechanisms influence system noise levels. The EVGA SuperNOVA NEX750B uses a 2-ball bearing fan. It is described as providing near-silent operation. Ball bearings typically offer longer lifespan and consistent performance. The Apevia TFX-AP300W uses an 80mm fan with forced air ventilation. Smaller fans often spin faster to move the same air, potentially increasing noise. The EVGA unit likely runs quieter due to its larger fan and bearing type. Noise levels are a key comfort factor for many users.
Protection features
Safety features protect your expensive components. The EVGA SuperNOVA NEX750B includes comprehensive protections: OVP, UVP, OCP, OPP, SCP, and OTP. These cover voltage, current, power, short circuits, and temperature issues. The Apevia TFX-AP300W mentions all PSU protections generally. It does not list specific protection types in the data. You know the EVGA unit has detailed safety layers. The Apevia unit has protections, but the specifics are unclear from the provided specs.
Which EVGA or Apevia PSU fits you
Standard ATX builders needing high power
You need reliable power for demanding components. This 750W unit features 80PLUS Bronze efficiency, reaching up to 85% efficiency under typical loads. The hybrid modular design reduces cable clutter and improves airflow inside your case. Japanese brand capacitors ensure long-term reliability for your high-performance system.
Small form factor SFF case owners
Your chassis requires a TFX form factor. This 300W power supply fits compact builds where space is tight. It measures 3.23 by 2.5 by 6.75 inches. The 80mm fan provides forced air ventilation. It supports standard input voltages and offers basic protections for entry-level hardware in small enclosures.
Users prioritizing safety protections
You want comprehensive protection for your components. This EVGA model includes over voltage, under voltage, over current, over power, short circuit, and over temperature protections. These features safeguard your hardware against electrical faults. The high amperage multi-rail design also helps maintain stable power delivery under heavy loads.
The products compared
EVGA SuperNOVA 750W Bronze Power Supply
Best for: Standard ATX cases needing 750W
- Wattage
- 750W
- Efficiency Rating
- 80PLUS Bronze
- Modularity
- Hybrid Modular
- Dimensions
- 7.1 × 5.9 × 3.4 inches
- Weight
- 7 pounds
View on Amazon: EVGA SuperNOVA 750W Bronze Power Supply Affiliate link
The EVGA SuperNOVA NEX750B is a 750W hybrid modular power supply with 80PLUS Bronze certification. It uses Japanese capacitors and a 2-ball bearing fan for reliability and quiet operation. This unit offers comprehensive protections like OVP and OCP. It suits users needing stable power for mid-range builds without full modularity complexity.
Pros
- 80PLUS Bronze efficiency up to 85%
- Hybrid modular design reduces cable clutter
- Japanese brand capacitors for long-term reliability
- Comprehensive protections including OVP and OCP
Cons
- Only 80PLUS Bronze efficiency rating
- Hybrid modular requires some permanent cables
- Heavier build at 7 pounds
Good fit if
- You need 750W for mid-range components
- You prefer quiet operation with a 2-ball fan
- You want reliable Japanese capacitors
Skip if
- You require full modularity for clean builds
- You need higher 80PLUS Gold efficiency
- You are building a compact TFX system
Verdict: EVGA SuperNOVA NEX750B 750W fits users who prioritize efficiency and protection in a standard ATX form factor. It is a solid choice for standard desktop cases where some cables remain permanently attached.
Apevia 300W TFX Power Supply
Best for: compact low-power mini-ITX systems
- 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 unit is a 300W TFX power supply designed for small form factor builds. It features an 80mm fan and standard ATX/EPS12V compatibility. The unit provides dedicated 12V rails and includes full protection circuits. It suits users needing a compact, reliable power source for low-to-mid power mini-ITX systems.
Pros
- Compact TFX form factor fits small cases
- 300W output handles modest build loads
- Includes full PSU protection circuits
- 80mm fan ensures adequate airflow
Cons
- Lower wattage than the 750W option on this list
- Smaller 80mm fan may run louder under load
- No 80PLUS efficiency certification listed
Good fit if
- You are building a small form factor PC
- You need a reliable power supply for low-power components
- You require a TFX form factor for your case
Skip if
- You need high wattage for gaming or workstation tasks
- You prefer quiet operation with larger fans
- You require high efficiency certifications like 80PLUS Gold
Verdict: Apevia TFX 300W SFF PSU is a solid choice for compact builds with modest power needs. It fits users prioritizing size over raw power or efficiency ratings.
Specifications side by side
| Spec | EVGA SuperNOVA 750W Bronze Power Supply | Apevia 300W TFX Power Supply |
|---|---|---|
| Wattage | 750W | 300W |
| Efficiency Rating | 80PLUS Bronze | not stated |
| Modularity | Hybrid Modular | not stated |
| Fan Size | not stated | 80mm |
| Form Factor | not stated | TFX |
| Dimensions | 7.1 × 5.9 × 3.4 inches | 6.75 × 3.23 × 2.5 inches |
| Weight | 7 pounds | 2.1 pounds |
| Color | Black | Black |
| Model | 120-PB-0750-KR | TFX-AP300W |
| Size | not stated | TFX 300W |
Frequently asked questions
Which power supply is better for a standard ATX case?
The EVGA SuperNOVA 750W Bronze is the better choice for standard ATX cases. It delivers 750W of continuous power, supporting demanding components. The unit measures 7.1 inches in length, fitting most mid-tower and full-tower chassis. Its 80 Plus Bronze rating ensures efficient energy use during operation.
Can I use the Apevia PSU in a large desktop tower?
No, the Apevia 300W TFX power supply is not designed for large desktop towers. It uses the TFX form factor, which is significantly smaller than standard ATX units. Its dimensions are 6.75 inches long and 3.23 inches wide. This compact size is intended for small form factor builds, not standard ATX cases.
What is the efficiency rating of the EVGA unit?
The EVGA SuperNOVA 750W Bronze has an 80 Plus Bronze efficiency rating. This certification indicates it converts AC power to DC power with reduced waste. Higher efficiency means less heat generation and lower electricity costs over time. It is a reliable option for users prioritizing energy savings in their builds.
How much does the EVGA power supply weigh?
The EVGA SuperNOVA 750W Bronze weighs 7 pounds. This weight reflects the internal components required to deliver 750W of stable power. The heavier build often correlates with higher quality capacitors and better heat dissipation. It is a substantial unit compared to lower wattage alternatives in the market.
Is the Apevia power supply suitable for gaming PCs?
The Apevia 300W TFX is generally not suitable for high-end gaming PCs. It provides only 300W of power, which limits the type of graphics cards and processors you can use. It is best for compact systems with modest power needs. For gaming, a higher wattage unit like the EVGA 750W model is recommended.
What are the physical dimensions of the Apevia TFX unit?
The Apevia TFX power supply measures 6.75 inches in length, 3.23 inches in width, and 2.5 inches in height. These compact dimensions allow it to fit into small form factor cases. The small footprint makes it ideal for mini-ITX builds where space is limited. It weighs 2.1 pounds, making it lightweight for its size.