SilverStone 700W SFX 80 Plus vs SilverStone 700W Platinum SFX-L Power: Spec Comparison
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This comparison covers the silverstone technology sst sx700 g 700w sfx vs technology sst sx700. Both units deliver 700W of power and feature fully modular cabling for clean builds. The main difference lies in efficiency and physical design. One model uses a standard SFX form factor with a 92mm fan and Gold certification. The other adopts the slimmer SFX-L profile, a larger 120mm fan, and Platinum efficiency. These changes affect fit and noise.
Key differences
| Aspect | SilverStone 700W SFX 80 Plus Gold Power Supply | SilverStone 700W Platinum SFX-L Power Supply |
|---|---|---|
| Efficiency Rating | 80 PLUS Gold | 80 PLUS Platinum |
| Form Factor | SFX | SFX-L |
| Fan Size | 92mm | 120mm |
| Length | 4.92 inches | 5.12 inches |
| Weight | 3.09 pounds | 5.07 pounds |
Which one should you choose?
Choose SilverStone 700W SFX 80 Plus Gold Power Supply if
- You need a standard SFX size that fits older cases with ATX mounting holes.
- You prefer a lighter unit for easier installation in small form factor builds.
- You want a 92mm fan that runs silently at 18 dBA under load.
Choose SilverStone 700W Platinum SFX-L Power Supply if
- You require higher energy efficiency with Platinum certification for lower heat.
- You are building in an SFX-L compatible case to maximize GPU clearance.
- You value the quieter operation of a larger 120mm fan with semi-fanless mode.
Verdict: Choose the Gold model if your case strictly requires standard SFX dimensions or you prioritize a lighter weight. The Platinum SFX-L version is better for modern small cases where the extra length and width provide better airflow and higher efficiency. Both offer full modularity and 700W output for your system.
SFX vs SFX-L: Key Spec Differences
Efficiency Rating
The SilverStone 700W SFX 80 Plus Gold Power Supply carries an 80 PLUS Gold certification. This indicates high performance in converting wall power to usable DC current. The SilverStone 700W Platinum SFX-L Power Supply steps up to an 80 PLUS Platinum rating. Platinum certification requires stricter efficiency thresholds across a wider load range. You will see less wasted energy as heat with the Platinum model. This matters for system stability and power bills over time. The Gold unit is efficient, but the Platinum unit holds the edge here due to its superior certification tier.
Form Factor
Physical dimensions dictate which cases can accept these units. The SilverStone 700W SFX 80 Plus Gold Power Supply uses the standard SFX form factor. It measures 3.94 inches in width. This allows it to fit in standard SFX mounting holes. The SilverStone 700W Platinum SFX-L Power Supply uses the SFX-L form factor. It is wider at 4.92 inches. The SFX-L design allows for larger internal components. However, it may not fit in cases that only support standard SFX widths. You must check your case compatibility before choosing the wider unit.
Fan Size
Cooling components affect noise and airflow dynamics. The SilverStone 700W SFX 80 Plus Gold Power Supply features a 92mm fan. This smaller fan spins faster to move air. The SilverStone 700W Platinum SFX-L Power Supply uses a larger 120mm fan. Larger fans can move the same volume of air at lower speeds. This often results in quieter operation under light loads. The Platinum model also supports semi-fanless operation. You will likely notice less acoustic noise from the Platinum unit due to its larger fan size.
Voltage Regulation
Power stability is critical for sensitive computer components. The SilverStone 700W SFX 80 Plus Gold Power Supply offers strict 3% voltage regulation. This ensures that output voltages stay within a narrow window of the target value. The product data for the SilverStone 700W Platinum SFX-L Power Supply does not list specific voltage regulation percentages. While both are high quality, the Gold unit explicitly states its tight regulation specs. You have confirmed data for the Gold unit's stability, whereas the Platinum unit's specific regulation figure is not provided in the available data.
Weight
Heavier power supplies often contain more robust internal components. The SilverStone 700W SFX 80 Plus Gold Power Supply weighs 3.09 pounds. The SilverStone 700W Platinum SFX-L Power Supply weighs 5.07 pounds. The Platinum unit is significantly heavier. This extra weight may come from the larger 120mm fan and denser internal circuitry required for Platinum efficiency. You might find the lighter Gold unit easier to handle during installation. However, the Platinum unit's heft suggests a build designed for durability and higher thermal mass.
Which SFX power supply suits your build
Users prioritizing ultimate efficiency and silence
Choose the Platinum SFX-L model if you want 80 PLUS Platinum efficiency. It uses a large 120mm fan for silent operation at 36 dBA. The semi-fanless design keeps noise low during light loads. This unit supports quad PCIe connectors for high-end graphics cards.
Builders needing standard SFX case compatibility
Select the Gold SFX model if your case only fits standard SFX dimensions. It is smaller at 3.94 inches wide. The 92mm fan ensures compatibility with tight spaces. It offers 80 PLUS Gold efficiency and strict voltage regulation for stable power delivery in compact builds.
Those valuing lightweight and compact design
Pick the Gold SFX unit for a lighter build. It weighs 3.09 pounds compared to the heavier Platinum model. The compact 3.94-inch width fits more standard cases. You get fully modular cables and Japanese capacitors without the extra weight and size of the larger fan unit.
The products compared
SilverStone 700W SFX 80 Plus Gold Power Supply
Best for: Standard SFX builds needing high efficiency
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 4.92 × 3.94 × 2.5 inches
View on Amazon: SilverStone 700W SFX 80 Plus Gold Power Supply Affiliate link
This SilverStone unit delivers 700W in a standard SFX form factor. It features 80 PLUS Gold efficiency and a fully modular design with flat cables. The 92mm fan aims for silent operation at 18 dBA. It suits users needing reliable power in compact cases who prefer standard mounting compatibility over the slimmer SFX-L footprint.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular cable design
- Standard SFX form factor compatibility
- Quiet 92mm fan operation
Cons
- Standard SFX size is bulkier than SFX-L
- 92mm fan is smaller than 120mm alternatives
- Not compatible with ATX mounting holes
Good fit if
- You need standard SFX mounting compatibility
- You want fully modular cables
- You prioritize high efficiency ratings
Skip if
- You require SFX-L compact dimensions
- You need ATX case compatibility
- You prefer larger 120mm fans
Verdict: SilverStone 700W SFX Gold PSU offers standard SFX compatibility and high efficiency. It fits users who need reliable power in compact cases without requiring the smaller SFX-L footprint.
SilverStone 700W Platinum SFX-L Power Supply
Best for: SFX-L builds needing high efficiency
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- PCIe Connector Type
- PCI-E 8/6pin
- Fan Size
- 120mm
- Form Factor
- SFX
View on Amazon: SilverStone 700W Platinum SFX-L Power Supply Affiliate link
This SilverStone unit delivers 700W of continuous power in an SFX-L form factor. It holds 80 PLUS Platinum certification for high efficiency. The 120mm fan supports semi-fanless operation for silent running. You get fully modular cables to manage airflow in small cases. It supports quad PCIe 8/6-pin connectors for high-end graphics cards.
Pros
- 80 PLUS Platinum efficiency rating
- 120mm fan with semi-fanless operation
- Fully modular cable design
- Supports quad PCIe 8/6-pin connectors
Cons
- Heavier build at 5.07 pounds
- Larger SFX-L footprint than standard SFX
- No mention of smart monitoring features
Good fit if
- You need high efficiency for low heat
- You have an SFX-L compatible case
- You require multiple PCIe power connectors
Skip if
- You are limited to strict SFX dimensions
- You prefer a lighter power supply
- You need smart fan control via software
Verdict: SilverStone 700W SFX-L Platinum PSU is a high-efficiency option for users with SFX-L cases who need reliable power for multiple PCIe devices.
Specifications side by side
| Spec | SilverStone 700W SFX 80 Plus Gold Power Supply | SilverStone 700W Platinum SFX-L Power Supply |
|---|---|---|
| Wattage | 700W | 700W |
| Efficiency Rating | 80 PLUS Gold | 80 PLUS Platinum |
| Modularity | Fully Modular | Fully Modular |
| PCIe Connector Type | not stated | PCI-E 8/6pin |
| Fan Size | 92mm | 120mm |
| Form Factor | SFX | SFX |
| Dimensions | 4.92 × 3.94 × 2.5 inches | 5.12 × 4.92 × 2.5 inches |
| Weight | 3.09 pounds | 5.07 pounds |
| Size | 700W | 700W SFX12V |
| Color | Black?Lead-Free Paint? | not stated |
| Model | SST-SX700-G | SST-SX700-LPT |
Frequently asked questions
What is the physical size difference between the SFX and SFX-L models?
The SFX-L unit is larger and heavier than the standard SFX version. The Platinum SFX-L measures 5.12 inches in length and weighs 5.07 pounds. The standard Gold SFX is slightly more compact at 4.92 inches long and 3.09 pounds. This size difference affects which compact cases can accommodate each unit.
Do both power supplies use fully modular cabling?
Yes, both models feature fully modular cabling. This allows you to connect only the cables your components require. It helps keep your build tidy and improves airflow inside small cases. You do not need to manage unused cables with either the Gold or Platinum versions.
Which model includes a larger fan for quieter operation?
The SilverStone 700W Platinum SFX-L Power Supply includes a 120mm fan. The standard SFX Gold model does not list a specific fan size in its specifications. A larger fan typically moves more air at lower speeds, which can reduce noise during typical usage.
Can I use the SFX-L PSU in a case designed for standard SFX?
You likely cannot fit the SFX-L unit into a case built for standard SFX. The SFX-L is longer at 5.12 inches compared to the 4.92 inches of the standard SFX. It is also significantly heavier. Always check your case dimensions before purchasing the larger SFX-L form factor.
Is the 80 Plus Gold rating sufficient for most builds?
The 80 Plus Gold rating indicates high efficiency in converting wall power to usable DC current. This is suitable for users needing reliable power in compact cases without requiring the smaller SFX-L footprint. It provides a good balance of performance and energy savings for standard builds.
What is the weight difference between the two units?
There is a notable weight difference between the two models. The Platinum SFX-L weighs 5.07 pounds, while the Gold SFX weighs 3.09 pounds. The heavier unit may require more robust mounting in small cases. Consider your case support when deciding which weight is manageable for your build.