EVGA SuperNOVA G2 1300W Fully vs EVGA SuperNOVA 750 G2 750W: Spec Comparison
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This comparison covers the evga supernova 1300 g2 80 vs supernova 750 g2. Both units share key features like 80 PLUS Gold efficiency, fully modular designs, and a ten-year warranty. They also use identical 140mm double ball bearing fans and offer the same heavy-duty protections. The main difference lies in their power output and physical dimensions. You need to decide if the extra wattage justifies the larger size for your build.
Key differences
| Aspect | EVGA SuperNOVA G2 1300W Fully Modular PSU | EVGA SuperNOVA 750 G2 750W Power Supply |
|---|---|---|
| Wattage | 1300W | 750W |
| Width | 12 inches | 5.9 inches |
| Height | 11.2 inches | 3.4 inches |
| Weight | 8 pounds | 6.6 pounds |
Which one should you choose?
Choose EVGA SuperNOVA G2 1300W Fully Modular PSU if
- You need high wattage for multiple GPUs or heavy workloads.
- You have a large case that accommodates the 12-inch width.
- You want maximum headroom for future upgrades.
Choose EVGA SuperNOVA 750 G2 750W Power Supply if
- You prefer a compact unit that fits in smaller cases.
- Your system does not require more than 750W of power.
- You want to reduce case clutter with a lighter, smaller unit.
Verdict: The 1300W model suits users with high-end, power-hungry systems who have ample case space. The 750W version is better for standard builds or smaller cases where space is limited. Both offer the same reliability and efficiency standards.
Power Output and Physical Size
Wattage capacity
The EVGA SuperNOVA G2 1300W Fully Modular PSU delivers 1300 watts of continuous power, making it suitable for high-end systems with multiple graphics cards or heavy workloads. In contrast, the EVGA SuperNOVA 750 G2 750W Power Supply provides 750 watts, which is sufficient for standard gaming rigs or mid-range builds. If you need extra headroom for future upgrades or extreme overclocking, the 1300W unit offers significantly more power. However, for most users, 750 watts is ample. Choose based on your specific component power requirements.
Physical dimensions
Size matters when fitting a power supply into your case. The 1300W unit measures 12 inches in width, 11.2 inches in height, and 7.4 inches in length. It is notably larger and heavier at 8 pounds. The 750W model is much more compact, measuring 5.9 inches wide, 3.4 inches high, and 7 inches long, weighing 6.6 pounds. The smaller form factor of the 750W unit makes it easier to install in smaller cases or tight build environments. The 1300W model requires more space.
Efficiency rating
Both power supplies share the same 80 PLUS Gold certification. This rating indicates that both units achieve up to 90% efficiency under typical loads. This means less energy is wasted as heat, leading to lower electricity bills and cooler operation inside your case. Since the efficiency rating is identical, neither unit holds an advantage here. You can expect similar performance in terms of power conversion efficiency regardless of which wattage you choose. The technology behind the conversion is consistent across both models.
Modularity level
Both the EVGA SuperNOVA G2 1300W Fully Modular PSU and the EVGA SuperNOVA 750 G2 750W Power Supply are fully modular. This means every cable can be detached from the unit. You only plug in the cables your system actually needs, which reduces cable clutter inside your case. This improves airflow and makes building cleaner. Since both products offer full modularity, there is no difference in this feature. You get the same benefit of customizable cable management with either choice.
Fan specifications
Both units utilize a 140mm double ball bearing fan. A larger 140mm fan can move more air at lower speeds compared to smaller fans, potentially resulting in quieter operation. The double ball bearing design is known for durability and longevity, handling heat and vibration well. Since the fan size and bearing type are identical for both the 1300W and 750W models, the cooling mechanism is the same. Neither product has an edge in fan technology or specifications.
Protection features
Both power supplies include heavy-duty protections, including Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Current Protection (OCP), Over Power Protection (OPP), and Short Circuit Protection (SCP). These safeguards protect your valuable components from power surges, spikes, or electrical faults. Since the protection suite is identical for both units, your hardware is equally safe with either choice. There is no difference in the safety features provided by the 1300W or 750W models.
Warranty coverage
Both the EVGA SuperNOVA G2 1300W Fully Modular PSU and the EVGA SuperNOVA 750 G2 750W Power Supply come with a 10-year warranty. This extended coverage demonstrates EVGA's confidence in the reliability of their components, including the Japanese brand capacitors used in the 750W model. A decade of protection is excellent for long-term peace of mind. Since the warranty period is the same for both, neither product offers better coverage. You get the same level of support regardless of wattage.
Which EVGA G2 PSU fits your build
High-end gaming or workstation users
You need the 1300W capacity for multiple GPUs or heavy workloads. The 140mm fan provides quiet cooling under high loads. Its fully modular design reduces clutter. The ten-year warranty ensures long-term reliability for your expensive components. This unit handles extreme power demands efficiently.
Mid-range build enthusiasts
The 750W output suffices for most modern gaming PCs. Its compact 5.9-inch width fits smaller cases easily. You get the same 80 PLUS Gold efficiency and ten-year warranty as the larger model. Fully modular cables keep your build clean. It offers excellent value for standard setups.
Small form factor builders
Space is limited in compact cases. This unit measures only 5.9 inches wide and 3.4 inches high. The 1300W model is significantly larger and may not fit. Both share the same 140mm fan and protections, but the smaller footprint makes this the practical choice for tight builds.
The products compared
EVGA SuperNOVA G2 1300W Fully Modular PSU
Best for: High-end multi-GPU workstations
- Wattage
- 1300W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 7.4 × 12 × 11.2 inches
View on Amazon: EVGA SuperNOVA G2 1300W Fully Modular PSU Affiliate link
The EVGA SuperNOVA 1300 G2 delivers 1300W of power with 80 PLUS Gold efficiency. It features a 140mm fan and fully modular cables. This unit includes comprehensive protections like OVP and UVP. You need this for high-end builds requiring stable power. The 10-year warranty covers long-term use. It suits users with multiple GPUs or heavy workloads.
Pros
- 1300W output capacity
- 80 PLUS Gold efficiency rating
- Fully modular cable design
- 140mm double ball bearing fan
- 10-year warranty coverage
Cons
- Large physical dimensions at 12 inches wide
- Heavy build at 8 pounds
- No mention of eco-mode or smart features
Good fit if
- You need 1300W for multi-GPU setups
- You want high efficiency under load
- You prefer fully modular cables
Skip if
- You have a small form factor case
- You only need 750W or less
- You prioritize silent operation over raw power
Verdict: EVGA SuperNOVA 1300 G2 fits users with high-end systems needing 1300W and gold efficiency. It is not suitable for compact builds due to its size.
EVGA SuperNOVA 750 G2 750W Power Supply
Best for: Efficient mid-range builds
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 7 × 5.9 × 3.4 inches
View on Amazon: EVGA SuperNOVA 750 G2 750W Power Supply Affiliate link
The EVGA SuperNOVA 750 G2 delivers 750W of power with 80 PLUS Gold efficiency. It features a 140mm double ball bearing fan and fully modular cabling. Japanese capacitors support long-term reliability. This unit suits builders who need high efficiency and clean cable management for mid-to-high-end systems.
Pros
- 80 PLUS Gold efficiency up to 90%
- Fully modular design reduces clutter
- 140mm double ball bearing fan
- 10-year warranty coverage
Cons
- 750W limit may not support extreme overclocking
- Heavier at 6.6 pounds
- No active mode silence listed
Good fit if
- You need high efficiency for lower heat
- You want clean cable management
- You build mid-to-high-end PCs
Skip if
- You need more than 750W
- You prefer silent zero-RPM operation
- You want a smaller form factor
Verdict: EVGA SuperNOVA 750 G2 80+ Gold fits users who prioritize efficiency and modularity. It supports stable power for demanding builds without excess wattage.
Specifications side by side
| Spec | EVGA SuperNOVA G2 1300W Fully Modular PSU | EVGA SuperNOVA 750 G2 750W Power Supply |
|---|---|---|
| Wattage | 1300W | 750W |
| Efficiency Rating | 80 PLUS Gold | 80 PLUS Gold |
| Modularity | Fully Modular | Fully Modular |
| Fan Size | 140mm | 140mm |
| Warranty | 10 Year | 10 Year |
| Size | 1300W | 750W |
| Dimensions | 7.4 × 12 × 11.2 inches | 7 × 5.9 × 3.4 inches |
| Weight | 8 pounds | 6.6 pounds |
| Color | Black | not stated |
| Model | 120-G2-1300-XR | 220-G2-0750-XR |
Frequently asked questions
Which EVGA G2 PSU is better for a single high-end GPU?
The EVGA SuperNOVA 750 G2 is the better choice for most single-GPU builds. It provides 750 watts of continuous power, which is sufficient for demanding mid-range systems. Its compact 5.9-inch width fits easily into standard cases. This unit avoids the bulk of the larger 1300W model while still delivering efficient performance.
Does the 1300W EVGA G2 fit in small form factor cases?
No, the EVGA SuperNOVA G2 1300W is not suitable for compact builds. It measures 12 inches in width and 11.2 inches in height. These dimensions require a large chassis with ample internal space. You should choose the 750W model if your case has limited room for power supply installation.
Are both EVGA G2 models fully modular?
Yes, both the 1300W and 750W EVGA G2 units feature fully modular designs. This means every cable can be detached from the power supply. You only connect the cables you actually need for your specific build. This flexibility helps manage cable clutter and improves airflow inside your computer case.
What is the weight difference between the two EVGA G2 PSUs?
The 1300W model weighs 8 pounds, while the 750W unit weighs 6.6 pounds. The higher wattage version is slightly heavier due to its larger internal components and larger chassis. This weight difference is minor and unlikely to affect the structural integrity of your case or the ease of installation.
Can the 750W EVGA G2 handle multi-GPU setups?
The 750W model is best suited for efficient mid-range builds rather than heavy multi-GPU workloads. While it offers stable power, the 1300W version is explicitly recommended for high-end multi-GPU workstations. If you plan to use multiple graphics cards, the higher wattage capacity of the 1300W unit provides necessary headroom.
How do the dimensions of the two units compare?
The 1300W unit is significantly larger, measuring 12 inches wide and 11.2 inches high. The 750W model is more compact at 5.9 inches wide and 3.4 inches high. Both share a similar length of around 7 to 7.4 inches. The smaller footprint of the 750W model makes it easier to fit in tighter spaces.
Is the 1300W EVGA G2 model number unique?
Yes, the EVGA SuperNOVA G2 1300W uses the model number 120-G2-1300-XR. The 750W version uses the distinct model number 220-G2-0750-XR. These identifiers help you locate the correct product when searching for drivers, documentation, or replacement cables. Always verify the model number to ensure you are purchasing the correct wattage unit.