Lian Li 750W SFX Gold Power vs Lian Li Edge 850W ATX 3.1 (2026): Key Differences
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The comparison of lian li sp 750 performance sfx vs edge gold 850w atx highlights two distinct power supply choices. Both units offer 80 PLUS Gold efficiency and Japanese capacitors for reliability. The main difference lies in their physical design and target systems. The SP 750 uses the compact SFX form factor for small cases. The Edge 850W uses the standard ATX form factor with ATX 3.1 support. You must choose based on your case size and GPU requirements.
Key differences
| Aspect | Lian Li 750W SFX Gold Power Supply | Lian Li Edge 850W ATX 3.1 Power Supply |
|---|---|---|
| Form Factor | SFX | ATX |
| Wattage | 750W | 850W |
| ATX Version | not listed | ATX 3.1 |
| Modularity | Fully modular | not listed |
| Dimensions | 4.13 x 7 x 9.5 inches | 3.39 x 5.91 x 7.17 inches |
Which one should you choose?
Choose Lian Li 750W SFX Gold Power Supply if
- You need a compact SFX unit for a small form factor case
- You prioritize fully modular cables for cleaner builds
- You require silent operation under 40% load with zero RPM mode
Choose Lian Li Edge 850W ATX 3.1 Power Supply if
- You need ATX 3.1 compliance for modern high-end GPUs
- You require the 12V-2X6 connector for NVIDIA RTX 40 or 50 series cards
- You want 850W of power for higher performance components
Verdict: Choose the SP 750 if your case requires the smaller SFX form factor and you value fully modular cabling. Select the Edge 850W if you need ATX 3.1 support and the native 12V-2X6 connector for newer graphics cards. The decision rests on your chassis size and specific GPU power requirements.
SFX Compactness Versus ATX Power
Form Factor
The Lian Li SP 750 uses the SFX form factor, measuring 9.5 inches long, 7 inches high, and 4.13 inches wide. This smaller footprint is designed for compact cases that accept SFX units. The Lian Li Edge 850W follows the standard ATX 3.1 specification, with dimensions of 7.17 inches in length, 5.91 inches in height, and 3.39 inches in width. ATX cases are far more common than SFX-compatible chassis. You must check your case compatibility before buying. If you have a small form factor build, the SP 750 is your only choice here. For standard towers, the Edge 850W fits easily.
Wattage Output
Power output is a critical spec for high-end builds. The Lian Li Edge 850W provides 850 watts of continuous power. This higher rating supports more demanding components and future upgrades. The Lian Li SP 750 offers 750 watts. While sufficient for many mid-range systems, it provides less headroom for extreme loads. The 100-watt difference may seem small, but it matters when pushing GPUs near their limits. If your system requires maximum power delivery, the Edge 850W is the stronger candidate. For lighter workloads, the SP 750 remains capable.
ATX Version
Standards compliance ensures compatibility with modern hardware. The Lian Li Edge 850W is explicitly ATX 3.1 compliant. This version supports PCIe 5.1 and includes the 12V-2X6 connector for NVIDIA RTX 40 and 50 series cards. It also handles transient power spikes better. The Lian Li SP 750 does not list an ATX version in its specifications. It is an SFX unit, which often follows older or specific compact standards. If you need the latest PCIe power delivery standards, the Edge 850W is the clear choice. The SP 750 lacks this documented modern standard.
Modularity
Cable management affects airflow and case aesthetics. The Lian Li SP 750 is fully modular. You can connect only the cables you need, reducing clutter. This is vital in tight SFX cases where space is limited. The Lian Li Edge 850W is also fully modular, as indicated by its product title and features. Both units allow you to remove unused cables. This shared feature means modularity is not a deciding factor between them. You get clean builds with either option. The benefit is identical for both products.
Efficiency Rating
Efficiency impacts heat and electricity usage. Both units carry the 80 PLUS Gold certification. This rating ensures high performance at typical loads. The Lian Li Edge 850W also holds Cybenetics Gold certification, providing an additional layer of efficiency verification. The SP 750 lists only the 80 PLUS Gold rating. While both are efficient, the Edge 850W has more documented efficiency credentials. This may lead to slightly better real-world performance under load. For most users, both are excellent choices. However, the Edge 850W has a slight edge in verified efficiency data.
Noise Features
Acoustic performance matters for quiet builds. The Lian Li SP 750 includes a ZERO RPM mode that keeps the fan off under 40% load. This ensures silent operation during light tasks. The Lian Li Edge 850W mentions low noise operation and a magnetic dust filter that preserves fan safety. It does not explicitly list a zero-RPM mode in its features. The SP 750 provides a specific silent feature for low loads. If silence is your priority, the SP 750 offers a clear advantage in its operational profile.
Which PSU Fits Your Build
Compact ITX builder with small case
You need the SFX form factor to fit your small chassis. This unit measures 9.5 by 7 by 4.13 inches. It delivers 750W of power with 80 PLUS Gold efficiency. The fully modular braided cables help manage space in tight enclosures. Japanese capacitors ensure durability in a constrained environment.
User with standard ATX mid tower
This ATX unit fits standard cases easily. It offers 850W of power for higher demands. The ATX 3.1 standard supports modern graphics cards via the 12V-2X6 connector. It maintains high efficiency with Cybenetics Gold certification. The magnetic dust filter simplifies maintenance for long-term reliability.
Builder prioritizing latest GPU standards
You should choose this model for its ATX 3.1 compliance. It includes the 12V-2X6 connector for NVIDIA RTX 40 and 50 series cards. This ensures stable power delivery with resistance to transient spikes. The 850W output provides headroom for high-end components. The design prioritizes compatibility with the newest hardware standards.
User seeking silent operation in small space
This SFX unit features a zero RPM mode under 40% load. You get silent operation during light tasks. The 750W capacity suits mid-range builds well. The compact size saves space without sacrificing efficiency. Fully modular cables reduce clutter. Japanese capacitors add to the longevity of the silent operation.
The products compared
Lian Li 750W SFX Gold Power Supply
Best for: compact PC builds needing 750W
- 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 Lian Li SP 750 is a 750W SFX power supply with 80 PLUS Gold efficiency. It uses fully modular braided cables and Japanese capacitors for durability. The unit supports zero RPM mode under 40% load. It measures 4.13 x 7 x 9.5 inches and weighs 2.2 pounds. You should choose this for compact builds needing reliable, silent operation at moderate power levels.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular braided cables
- Japanese electrolytic capacitors
- Zero RPM fan mode
Cons
- Lower 750W output compared to 850W competitors
- SFX form factor limits cable management space
- Heavier at 2.2 pounds than some SFX units
Good fit if
- You need a compact SFX power supply
- You want high efficiency for lower heat
- You prefer silent operation at low loads
Skip if
- You require more than 750W of power
- You are building a standard ATX case
- You need ATX 3.1 compatibility
Verdict: Lian Li SP 750 SFX Gold PSU is a solid choice for small form factor builds that prioritize efficiency and silence over maximum wattage.
Lian Li Edge 850W ATX 3.1 Power Supply
Best for: Standard ATX cases with high-end GPUs
- Wattage
- 850W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- PCIe Version
- PCIe 5.1
View on Amazon: Lian Li Edge 850W ATX 3.1 Power Supply Affiliate link
This Lian Li power supply delivers 850W of power in a standard ATX form factor. It features ATX 3.1 compliance and an 80 PLUS Gold efficiency rating. The unit includes a 12V-2X6 connector for modern NVIDIA graphics cards. A magnetic dust filter aids in maintenance. It suits builders needing reliable power for high-end components without the constraints of smaller form factors.
Pros
- 80 PLUS Gold and Cybenetics Gold efficiency certification
- ATX 3.1 compliant for stable power delivery
- Includes 12V-2X6 connector for RTX 40 and 50 series
- Magnetic front dust filter for easy cleaning
Cons
- Standard ATX dimensions are bulkier than SFX units
- No mention of fan hub inclusion for this specific model
- Limited to ATX form factor compatibility
Good fit if
- You are building a standard ATX case
- You need support for next-gen NVIDIA GPUs
- You prefer gold efficiency ratings
Skip if
- You are building in a small form factor case
- You require SFX dimensions for tight spaces
- You need a power supply under 850W
Verdict: Lian Li Edge Gold 850W ATX 3.1 is a solid choice for standard ATX builds requiring modern GPU connectors and high efficiency. It fits users prioritizing component compatibility over compact size.
Specifications side by side
| Spec | Lian Li 750W SFX Gold Power Supply | Lian Li Edge 850W ATX 3.1 Power Supply |
|---|---|---|
| Wattage | 750W | 850W |
| Efficiency Rating | 80 PLUS GOLD | 80 PLUS Gold |
| Modularity | Fully modular | Fully Modular |
| ATX Version | not stated | ATX 3.1 |
| PCIe Connector Type | not stated | 12V-2x6 |
| Form Factor | SFX | ATX |
| PCIe Version | not stated | PCIe 5.1 |
| Connector | not stated | 12V-2x6 Connector |
| Dimensions | 9.5 × 4.13 × 7 inches | 7.17 × 3.39 × 5.91 inches |
| Weight | 2.2 pounds | not stated |
| Size | 750W(V1),Black | not stated |
| Color | Black | Black |
| Model | SP750 | EDGE GOLD 850 BLACK |
Frequently asked questions
Which power supply is better for a mini ITX build?
The Lian Li SP 750 is the better choice for mini ITX builds. It uses the SFX form factor, which fits in smaller cases. Its dimensions are 9.5 by 7 by 4.13 inches. The Edge 850W uses the larger ATX form factor, which will not fit in compact chassis designed for SFX units.
Does the Lian Li Edge support modern GPUs?
Yes, the Lian Li Edge 850W supports modern GPUs. It adheres to the ATX 3.1 standard. This version includes native support for the 12VHPWR connector needed by new graphics cards. The SP 750 is an older SFX unit and does not specify ATX 3.1 compliance or these modern connectors.
How do the sizes of these two PSUs compare?
The SP 750 is significantly larger in footprint than the Edge 850W. The SFX unit measures 9.5 inches long, 7 inches high, and 4.13 inches wide. The ATX Edge unit is shorter and narrower, measuring 7.17 inches long, 5.91 inches high, and 3.39 inches wide. Both are black and weigh around two pounds.
Is the Lian Li SP 750 fully modular?
The provided data confirms the SP 750 is fully modular. This allows you to connect only the cables you need, reducing clutter in small cases. The Edge 850W is also a modular unit. This feature helps with cable management in both compact and standard ATX builds.
Can I use the Edge 850W in a small case?
You likely cannot use the Edge 850W in a small case. It uses the standard ATX form factor, which requires more space than SFX units. Small cases typically only accept SFX or SFX-L power supplies. The SP 750 is designed specifically for these smaller form factor chassis.
What efficiency rating do both power supplies have?
Both power supplies carry the 80 PLUS Gold efficiency rating. This means they convert AC power to DC power with high efficiency, reducing waste heat. The SP 750 and Edge 850W both meet this standard. This ensures reliable performance and lower energy costs during operation.