Lian Li 750W SFX Gold Power vs Lian Li SP 750W Gold SFX (2026): Key Differences
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You are comparing the Lian Li 750W SFX Gold Power Supply against the Lian Li SP 750W Gold SFX for your next build. This guide covers the lian li sp 750 performance sfx vs sp 750 ga 750 to help you decide. Both units offer 750W of power and 80 PLUS Gold efficiency in a fully modular design. The main difference lies in their physical dimensions and specific feature sets. One model prioritizes a compact footprint, while the other offers standard SFX sizing with zero RPM fan control. Read on to see which fits your case.
Key differences
| Aspect | Lian Li 750W SFX Gold Power Supply | Lian Li SP 750W Gold SFX Power Supply |
|---|---|---|
| Dimensions | 4.13 x 7 x 9.5 inches | 8 x 5 x 10 inches |
| Weight | 2.2 pounds | not listed |
| Fan Control | ZERO RPM mode under 40% load | not listed |
| Capacitors | Japanese electrolytic capacitors | not listed |
Which one should you choose?
Choose Lian Li 750W SFX Gold Power Supply if
- You need the most compact SFX footprint available to fit smaller cases.
- You want silent operation at low loads with a dedicated zero RPM mode.
- You prefer units built with Japanese electrolytic capacitors for durability.
Choose Lian Li SP 750W Gold SFX Power Supply if
- You are building in a standard SFX case with more internal height.
- You do not require listed fan curve features or specific capacitor details.
- You want a straightforward fully modular 750W Gold unit without extra specs.
Verdict: Choose the Performance SFX if your case has tight height constraints or you value silent low-load operation. The standard SP 750 GA is a solid choice if you have more vertical space and do not need the specific compact dimensions. Both provide reliable 750W output with 80 PLUS Gold efficiency.
Lian Li SP 750 Performance vs GA 750
Efficiency rating
Both the Lian Li 750W SFX Gold Power Supply and the Lian Li SP 750W Gold SFX carry the 80 PLUS Gold certification. This means you can expect high energy efficiency from either unit under typical loads. Gold-rated power supplies reduce wasted energy as heat, which helps keep your system cooler and potentially lowers your electricity usage over time. Since both models share this exact efficiency tier, neither has a technical advantage here. You will get the same baseline performance regarding power conversion from both options.
Modularity
Both power supplies are fully modular. This is a standard feature for this class of hardware. You can detach all cables from the unit, which simplifies installation in small cases and improves airflow by removing unnecessary wires. The Lian Li 750W SFX Gold Power Supply and the Lian Li SP 750W Gold SFX both offer this flexibility. There is no difference in modularity type between the two. You do not need to worry about fixed cables cluttering your build with either choice.
Form factor
Both units are SFX form factor. This compact size is designed for small form factor cases that do not accept standard ATX power supplies. The Lian Li 750W SFX Gold Power Supply and the Lian Li SP 750W Gold SFX both fit this physical standard. You can install either one in any case that supports SFX units. The physical footprint is consistent across both models, ensuring compatibility with your chassis regardless of which specific model you select.
Dimensions
The Lian Li 750W SFX Gold Power Supply lists dimensions of 4.13 inches in width, 7 inches in height, and 9.5 inches in length. The Lian Li SP 750W Gold SFX lists dimensions of 8 inches in width, 5 inches in height, and 10 inches in length. These measurements show a significant difference in physical shape. The first unit is narrower but taller. The second unit is wider but shorter. You must check your case clearance carefully, as the internal space requirements differ between these two specific models.
Features
The Lian Li 750W SFX Gold Power Supply lists specific features such as Japanese electrolytic capacitors, zero RPM mode under 40% load, and fully modular braided cables. The Lian Li SP 750W Gold SFX data does not list these specific features. The presence of zero RPM mode in the first unit suggests silent operation at low loads. The Japanese capacitors indicate a specific component choice for durability. Since these details are absent from the second product's data, you cannot confirm if it shares these characteristics.
Which PSU fits your build
Small form factor builders
The SP 750 Performance is an SFX unit measuring 4.13 by 7 by 9.5 inches. It weighs 2.2 pounds. This compact profile fits tight cases better. It uses Japanese capacitors for durability. The zero RPM mode keeps noise low under 40% load. You get clean braided cables for tidy builds.
Users wanting silent operation
This model features a zero RPM mode that activates under 40% load. It uses Japanese electrolytic capacitors for high durability. The fully modular design allows you to remove unused cables. This results in a cleaner look inside your case. The 80 PLUS Gold rating ensures efficient power delivery.
Standard ATX users
The SP 750 GA measures 8 by 5 by 10 inches. It is fully modular with 80 PLUS Gold efficiency. The larger dimensions fit standard ATX cases easily. You get reliable power for your components. The design is simple and functional. It supports high wattage needs without extra complexity.
The products compared
Lian Li 750W SFX Gold Power Supply
Best for: Small form factor builds needing Gold efficiency
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS GOLD
- Modularity
- Fully modular
- Form Factor
- SFX
- Dimensions
- 9.5 × 4.13 × 7 inches
- Weight
- 2.2 pounds
View on Amazon: Lian Li 750W SFX Gold Power Supply Affiliate link
This is the Lian Li SP 750 Performance SFX power supply. It delivers 750W of power with 80 PLUS Gold efficiency. The unit uses fully modular braided cables and Japanese electrolytic capacitors for durability. It features a zero RPM mode for silent operation under light loads. This compact unit suits users needing reliable power in small form factor builds.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular braided cables
- Japanese electrolytic capacitors
- Zero RPM mode under 40% load
Cons
- Heavier at 2.2 pounds compared to standard SFX units
- Standard 7-inch height limits fitment in some mini cases
- No mention of a digital display or app control
Good fit if
- You need a compact SFX power supply for a small case
- You want fully modular cables for a clean build
- You prioritize 80 PLUS Gold efficiency
Skip if
- You require a Platinum efficiency rating
- You need a power supply under 2 pounds
- You want a digital display for monitoring
Verdict: Lian Li SP 750 Performance SFX offers solid Gold efficiency and silent operation for small builds. It fits users who need reliable power in a compact, fully modular package.
Lian Li SP 750W Gold SFX Power Supply
Best for: Compact PC builds with space limits
- Wattage
- 750 WATT
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Form Factor
- SFX
- Dimensions
- 10 × 8 × 5 inches
View on Amazon: Lian Li SP 750W Gold SFX Power Supply Affiliate link
This is a 750-watt SFX power supply with 80 Plus Gold efficiency. It is fully modular, so you connect only the cables you need. The unit measures 10 by 8 by 5 inches. It fits in small form factor cases. You get reliable power for compact builds without excess wiring clutter.
Pros
- 750W output capacity
- 80 Plus Gold efficiency rating
- Fully modular cable design
- Compact SFX form factor
Cons
- SFX size limits high-end GPU compatibility
- 750W may not support extreme overclocking
- Black color may not match white builds
Good fit if
- You build in a small case
- You want efficient power delivery
- You prefer clean cable management
Skip if
- You need ATX form factor
- You require 80 Plus Platinum efficiency
- You build a high-wattage workstation
Verdict: Lian Li SP 750 Gold SFX suits small builds needing efficient power. It fits compact cases well. You get modularity and gold efficiency in a small package.
Specifications side by side
| Spec | Lian Li 750W SFX Gold Power Supply | Lian Li SP 750W Gold SFX Power Supply |
|---|---|---|
| Wattage | 750W | 750 WATT |
| Efficiency Rating | 80 PLUS GOLD | 80 Plus Gold |
| Modularity | Fully modular | Fully Modular |
| Form Factor | SFX | SFX |
| Dimensions | 9.5 × 4.13 × 7 inches | 10 × 8 × 5 inches |
| Weight | 2.2 pounds | not stated |
| Size | 750W(V1),Black | not stated |
| Color | Black | Black |
| Model | SP750 | SP750 WHITE |
Frequently asked questions
Which Lian Li 750W SFX power supply is more compact?
The Lian Li 750W SFX Gold Power Supply is the more compact option. It measures 4.13 inches in width, 7 inches in height, and 9.5 inches in length. The SP 750W Gold SFX is larger, measuring 8 inches wide, 5 inches high, and 10 inches long. If your case has strict internal dimensions, the first unit offers a tighter fit.
Does the Lian Li SP 750W Gold SFX support full modularity?
Yes, the Lian Li SP 750W Gold SFX is fully modular. This feature allows you to connect only the cables you need for your build. This reduces clutter inside your case and improves airflow. The data does not explicitly list the modularity type for the other model, so you should verify its cable configuration separately.
What is the weight difference between the two units?
The Lian Li 750W SFX Gold Power Supply weighs 2.2 pounds. The specifications for the SP 750W Gold SFX do not list a weight. For small form factor builds, the known weight of the first unit helps you plan your chassis support. Heavier units may require additional mounting reinforcement in smaller cases.
Are both power supplies 80 PLUS Gold certified?
Yes, both units carry the 80 PLUS Gold certification. This rating indicates high energy efficiency during typical usage. You will see less wasted heat and lower electricity consumption compared to lower-tier ratings. This efficiency applies to both the SP 750 Performance and the SP 750W Gold SFX models.
Which model is better for tight spaces?
The Lian Li 750W SFX Gold Power Supply is better for tight spaces. Its width of 4.13 inches is significantly narrower than the 8-inch width of the SP 750W Gold SFX. If you are building in a small chassis with limited width clearance, the narrower profile of the first unit will likely fit where the second one cannot.
Do both units come in black?
Yes, both power supplies are available in black. The Lian Li 750W SFX Gold Power Supply is listed as black. The SP 750W Gold SFX also has a black color option, though a white model is also noted in the data. You can choose the color that matches your cable management and case aesthetics.
Is the SP 750 Performance suitable for small builds?
Yes, the Lian Li 750W SFX Gold Power Supply is suitable for small builds. It uses an SFX form factor, which is designed for compact cases. Its compact dimensions and 750W output provide sufficient power for many mid-range components in a small footprint. It is a solid choice for builders prioritizing size over maximum cable modularity.