Looking Beyond the SilverStone 750W Platinum SFX PSU? 6 Alternatives Worth a Look
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The SilverStone 750W Platinum SFX PSU delivers high efficiency in a compact form factor. If you are considering silverstone technology sx750 v1 1 platinum alternatives, you might want different specs or a different brand. This unit offers 80 Plus Platinum efficiency and fully modular cabling in a standard SFX size. It suits builders who need quiet operation and reliable power in tight spaces.
However, you might prefer more wattage, a different fan size, or a longer warranty. Some users need ATX 3.1 compatibility for modern graphics cards. Others want a larger 120mm fan for even quieter performance. This list includes 6 options that overlap with the original’s key specifications. We selected these alternatives because they share similar efficiency ratings or modularity. Each option addresses specific needs that the base model may not cover. You can compare their dimensions, wattage, and certifications to find the best fit for your build.
How these options differ
EVGA SuperNOVA 750W Platinum PSU
The EVGA SuperNOVA 750W Platinum is a standard ATX unit, so it will not fit in small SFX cases. It measures 6.5 inches long, which is significantly larger than the 3.94-inch SilverStone. You gain a 10-year warranty, matching the SilverStone, but you lose the compact footprint. This option suits builders with full-sized ATX towers who want high efficiency and a long support period. It is not for tight chassis. The 750W output is identical, but the physical size change is the main trade-off. Choose this if case size is not a constraint and you prefer a larger, established ATX form factor for easier cable management.
ASRock PG-850PSF 850W SFX ATX 3.1
The ASRock PG-850PSF offers 850W, which is 100W more than the 750W SilverStone. It shares the same SFX dimensions, so it fits in the same small cases. This model supports ATX 3.1 and PCIe 5.1 standards, providing modern connectivity for newer GPUs. It also includes a 10-year warranty. You get more power and up-to-date cable standards in the same space. The efficiency rating is Platinum, matching the SilverStone. This alternative is best for gamers who need extra headroom for high-end components without increasing the case size. It is the top choice for future-proofing in a compact build.
EVGA SuperNOVA 750 G2 750W Power Supply
The EVGA SuperNOVA 750 G2 is an ATX power supply, so it requires a standard ATX case, not a small SFX chassis. It measures 7 inches long, making it much larger than the SilverStone. This unit provides 80 Plus Gold efficiency, which is lower than the Platinum rating of the SilverStone. It does offer a 10-year warranty. The 750W output is the same. This option is suitable for builders who do not need compact size and want a reliable, fully modular unit with strong warranty coverage. It sacrifices efficiency and form factor for a standard, widely compatible design. Pick this for standard towers where size does not matter.
SilverStone 700W Platinum SFX-L Power Supply
The SilverStone 700W SFX-L uses a 120mm fan, which is larger than the 92mm fan in the 750W model. This allows for quieter operation at lower loads. It outputs 700W, which is 50W less than the SilverStone 750W. The dimensions are slightly different, with a length of 5.12 inches versus 3.94 inches. It is fully modular and designed for SFX cases. This alternative is ideal for users who prioritize silence over maximum wattage. The larger fan can move more air at lower speeds. Choose this if you build a compact system and value quiet performance above the extra 50W of power.
SilverStone 700W Platinum SFX Power Supply
The SilverStone SX700 Platinum offers 700W, which is 50W less than the 750W model. It shares the same 80 Plus Platinum efficiency rating and SFX form factor. The dimensions are identical at 4.92 by 3.94 inches. It lacks the fully modular cabling mentioned for the 750W version in some contexts, but data confirms it is a Platinum SFX unit. This is a direct step-down in power while keeping efficiency and size the same. It suits users who do not need the full 750W and want a reliable, compact, high-efficiency unit. It is a lighter, less powerful option for small builds that do not require maximum wattage.
SilverStone SX750 750W SFX Platinum PSU
The SilverStone SX750 750W SFX Platinum has different dimensions listed, measuring 10 inches long compared to the 3.94-inch V1.1 model. This suggests it may be a different variant or older version. It offers the same 750W output and Platinum efficiency. It is fully modular. The larger size makes it incompatible with standard SFX cases designed for the compact V1.1. This unit is for builders who have more space and want the same power and efficiency but in a larger enclosure. It is not a drop-in replacement for the small form factor version. Choose this if you have a larger case and prefer the physical dimensions of this specific model.
Quick picks
Our 7 picks
SilverStone 750W Platinum SFX PSU
Best for: compact high-efficiency builds
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Platinum
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
View on Amazon: SilverStone 750W Platinum SFX PSU Affiliate link
The SilverStone SX750-PT-X is a fully modular 750W power supply in the standard SFX form factor. It carries an 80 PLUS Platinum efficiency rating and uses all Japanese capacitors for reliability. The unit features a 92mm dual ball bearing fan that runs silently by starting only when load and temperature require it. This compact unit suits users building small form factor PCs who need high efficiency and quiet operation.
Pros
- 80 PLUS Platinum efficiency rating
- Fully modular cable design
- 92mm fan with auto-start temperature control
- All Japanese capacitors
Cons
- 750W output is lower than the 850W and 1000W options on this list
- Standard SFX dimensions may limit airflow in very tight cases
- Fan only activates based on load, which may not suit users who prefer constant airflow
Good fit if
- You need a high-efficiency power supply for a small form factor PC
- You prioritize quiet operation with a fan that starts only when needed
- You want a fully modular setup for clean cable management
Skip if
- You require more than 750W of power for high-end components
- You prefer a larger SFX-L or ATX form factor for better cooling
- You want a power supply with active fan mode for zero noise at low loads
Verdict: SilverStone SX750-PT-X 750W SFX delivers reliable power for compact builds requiring high efficiency. It fits users who value quiet operation and modular cabling in a small chassis.
EVGA SuperNOVA 750W Platinum PSU
Best for: Standard ATX builds needing high efficiency
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 6.5 × 5.91 × 3.3 inches
View on Amazon: EVGA SuperNOVA 750W Platinum PSU Affiliate link
The EVGA SuperNOVA 750 P2 is a fully modular power supply with 80 PLUS Platinum certification. It delivers 750W of power using a 140mm double ball bearing fan. Japanese capacitors support long-term reliability. You should consider this unit if you want high efficiency and a 10-year warranty. It fits well in standard cases where SFX form factors are not required.
Pros
- 80 PLUS Platinum efficiency rating
- Fully modular cable design
- 10-year warranty coverage
- 140mm double ball bearing fan
Cons
- Standard ATX form factor, not SFX
- Heavier at 5.95 pounds
- Larger dimensions than compact PSUs
Good fit if
- You need high efficiency for lower heat
- You want a long warranty period
- You have space for a standard ATX PSU
Skip if
- You are building in a small form factor case
- You need an SFX size for tight spaces
- You want a lighter power supply
Verdict: EVGA SuperNOVA 750 P2 80+ Platinum suits users who prioritize efficiency and warranty length over compact size. It is a solid choice for standard ATX builds.
ASRock PG-850PSF 850W SFX ATX 3.1
Best for: compact high-wattage gaming builds
- Wattage
- 850W
- Efficiency Rating
- 80 Plus Platinum, Cybenetics Platinum
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 92mm
View on Amazon: ASRock PG-850PSF 850W SFX ATX 3.1 Affiliate link
The ASRock Phantom Gaming PG-850PSF delivers 850W in an SFX form factor with 80 Plus Platinum and Cybenetics Platinum efficiency ratings. It features a native 12V-2x6 connector for PCIe 5.1 GPUs and uses Japanese capacitors for stability. The unit includes a 92mm fan with intelligent control for quiet operation. This fully modular design helps manage cables in small builds. It suits users needing high wattage and top-tier efficiency in a compact chassis.
Pros
- 850W output in SFX size
- 80 Plus and Cybenetics Platinum efficiency
- Native 12V-2x6 PCIe 5.1 connector
- Fully modular cable design
- 10-year warranty coverage
Cons
- 92mm fan is smaller than standard 120mm units
- Higher wattage may exceed needs for low-power systems
- SFX footprint limits airflow in some cases
Good fit if
- You need 850W in a small form factor case
- You want top-tier efficiency ratings
- You are building a modern GPU system
Skip if
- You require ATX form factor compatibility
- You only need 750W or less
- You prefer passive cooling solutions
Verdict: ASRock 850W SFX Platinum PSU offers high efficiency and modern connectivity for compact builds. It fits users who need maximum power density without sacrificing efficiency standards.
EVGA SuperNOVA 750 G2 750W Power Supply
Best for: Standard ATX builds needing high efficiency
- 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 is a fully modular 750W power supply with 80 PLUS Gold certification. It reaches up to 90% efficiency under typical loads. The unit uses a 140mm double ball bearing fan and Japanese brand capacitors. It includes OVP, UVP, OCP, OPP, and SCP protections. This model suits users seeking high efficiency and a long warranty for their build.
Pros
- 80 PLUS Gold certified for up to 90% efficiency
- Fully modular design to reduce cable clutter
- 10-year warranty coverage
- 140mm double ball bearing fan for cooling
- Japanese brand capacitors for reliability
Cons
- 80 PLUS Gold rating is lower than the Platinum options on this list
- Heavier at 6.6 pounds compared to lighter SFX units
- Larger dimensions than standard SFX form factor
Good fit if
- You want high efficiency with an 80 PLUS Gold rating
- You need a fully modular power supply for clean builds
- You prefer a 10-year warranty for long-term peace of mind
Skip if
- You require the highest 80 PLUS Platinum efficiency rating
- You are building in a strict SFX case with limited space
- You need a lighter power supply under 6 pounds
Verdict: EVGA SuperNOVA 750 G2 80+ Gold offers solid efficiency and a long warranty, making it a reliable choice for standard ATX cases where SFX size constraints do not apply.
SilverStone 700W Platinum SFX-L Power Supply
Best for: quiet compact builds with SFX cases
- 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
The SilverStone SST-SX700-LPT is a 700W SFX power supply with 80 PLUS Platinum efficiency. It uses a 120mm fan for silent operation and supports semi-fanless mode. The unit is fully modular with short, flexible cables. It measures 4.92 x 2.5 x 5.12 inches and weighs 5.07 pounds. This model suits users who prioritize quiet cooling in compact builds.
Pros
- 80 PLUS Platinum efficiency rating
- Silent 120mm fan with semi-fanless operation
- Fully modular short cables
- Supports Quad PCI-E 8/6pin connectors
Cons
- Lower 700W output compared to 750W alternatives
- Heavier at 5.07 pounds
- SFX form factor limits case compatibility
Good fit if
- You need a quiet 120mm fan in an SFX case
- You want high efficiency for low heat
- You require fully modular cabling
Skip if
- You need more than 700W of power
- You prefer a standard ATX form factor
- You want a lighter power supply
Verdict: SilverStone 700W SFX Platinum offers quiet 120mm fan cooling and high efficiency for compact builds. It fits users who value silence and modularity over higher wattage.
SilverStone 700W Platinum SFX Power Supply
Best for: compact high-efficiency builds
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Platinum
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
- Weight
- 4.59 pounds
View on Amazon: SilverStone 700W Platinum SFX Power Supply Affiliate link
This SilverStone unit delivers 700W of power in a compact SFX form factor. It holds 80 PLUS Platinum certification for high efficiency. The design uses all Japanese capacitors and a 92mm FDB fan. It runs quietly at 18 dBA. You get a class-leading single +12V rail. This fits small cases where space is tight.
Pros
- 80 PLUS Platinum efficiency rating
- 700W continuous output
- Quiet 18 dBA operation
- All Japanese capacitors
Cons
- Lower wattage than 750W competitors
- SFX form factor requires ATX adapter
- Heavier build at 4.59 pounds
Good fit if
- You need high efficiency in a small case
- You want quiet operation under load
- You prefer Japanese capacitors
Skip if
- You require more than 700W
- You need an ATX form factor
- You want a lighter unit
Verdict: SilverStone SX700 Platinum 700W SFX suits builders who prioritize efficiency and silence over raw wattage in compact chassis.
SilverStone SX750 750W SFX Platinum PSU
Best for: small form factor builds needing high efficiency
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 10 × 8 × 4 inches
View on Amazon: SilverStone SX750 750W SFX Platinum PSU Affiliate link
This SilverStone unit delivers 750W of power in a standard SFX form factor. It carries an 80 PLUS Platinum efficiency rating and uses fully modular cabling. The design features a 92mm fan that stays silent at low loads. You get a single +12V rail with strict voltage regulation. This build suits users needing high efficiency in a small case.
Pros
- 80 PLUS Platinum efficiency rating
- 750W continuous power output
- Fully modular cable connections
- Single +12V rail design
- 92mm fan with auto-start mode
Cons
- SFX form factor limits case compatibility
- Heavier than some ATX alternatives
- No remote or app control listed
Good fit if
- You need high efficiency in a small case
- You want fully modular cabling for clean builds
- You require a single +12V rail for GPU power
Skip if
- You prefer larger ATX cases for airflow
- You need more than 750W of power
- You want smart monitoring features
Verdict: SilverStone 750W SFX Platinum is a compact, efficient choice for small form factor builds. It fits users who prioritize high efficiency and clean cable management in tight spaces.
Specifications side by side
| Spec | SilverStone 750W Platinum SFX PSU | EVGA SuperNOVA 750W Platinum PSU | ASRock PG-850PSF 850W SFX ATX 3.1 | EVGA SuperNOVA 750 G2 750W Power Supply | SilverStone 700W Platinum SFX-L Power Supply | SilverStone 700W Platinum SFX Power Supply | SilverStone SX750 750W SFX Platinum PSU |
|---|---|---|---|---|---|---|---|
| Wattage | 750W | 750W | 850W | 750W | 700W | 700W | 750W |
| Efficiency Rating | 80 Plus Platinum | 80 PLUS Platinum | 80 Plus Platinum, Cybenetics Platinum | 80 PLUS Gold | 80 PLUS Platinum | 80 PLUS Platinum | 80 PLUS Platinum |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | not stated | Fully Modular |
| ATX Version | not stated | not stated | ATX 3.1 | not stated | not stated | not stated | not stated |
| PCIe Connector Type | not stated | not stated | 12V-2x6 | not stated | PCI-E 8/6pin | not stated | not stated |
| Fan Size | 92mm | 140mm | 92mm | 140mm | 120mm | 92mm | 92mm |
| Warranty | not stated | 10 Year | 10 Years | 10 Year | not stated | not stated | not stated |
| Form Factor | SFX | not stated | SFX | not stated | SFX | SFX | SFX |
| PCIe Version | not stated | not stated | PCIe 5.1 | not stated | not stated | not stated | not stated |
| Recommended Use | not stated | not stated | Gaming | not stated | not stated | not stated | not stated |
| Size | 750W | 750W | 850W | 750W | 700W SFX12V | 700W | not stated |
| Dimensions | 3.94 × 4.92 × 2.5 inches | 6.5 × 5.91 × 3.3 inches | 3.94 × 4.92 × 2.5 inches | 7 × 5.9 × 3.4 inches | 5.12 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 10 × 8 × 4 inches |
| Weight | not stated | 5.95 pounds | not stated | 6.6 pounds | 5.07 pounds | 4.59 pounds | 4.47 pounds |
| Model | PS-SX750-PT-X | 220-P2-0750-X1 | 90-UFP085-PFUAAB | 220-G2-0750-XR | SST-SX700-LPT | SX700-PT | SX750-PT |
| Color | not stated | Black | not stated | not stated | not stated | not stated | not stated |
If you also need a chassis, compare silverstone technology alta t1 aluminum alternatives to assess space for your components.
Frequently asked questions
Can I use a standard ATX power supply in my small SFX case?
No. Standard ATX power supplies, such as the EVGA SuperNOVA 750W Platinum, are too large for SFX chassis. The ATX unit measures 6.5 inches in length, while the SFX form factor is limited to approximately 3.94 inches. You must choose a power supply specifically designed for the SFX dimensions to ensure physical compatibility with your compact build.
Does the ASRock PG-850PSF support the latest PCIe 5.1 graphics cards?
Yes. The ASRock PG-850PSF is certified for ATX 3.1 and supports PCIe 5.1. This allows it to provide the necessary power connections for modern high-end GPUs without needing adapter cables. It offers 850W of output in a compact SFX size, making it suitable for gaming builds that require high efficiency and modern connectivity standards.
Which SFX power supply uses a 120mm fan for quieter operation?
The SilverStone 700W Platinum SFX-L features a 120mm fan. This larger fan size allows for quieter cooling compared to standard 80mm fans found in other SFX units. It delivers 700W of power with 80 Plus Platinum efficiency. This model is ideal for users who prioritize silence and modularity in a compact form factor without needing the highest wattage.
Is there an SFX power supply with higher wattage than 750W?
Yes, the ASRock PG-850PSF provides 850W of power. It maintains the compact SFX dimensions while offering higher output than the 750W SilverStone options. This unit is fully modular and meets 80 Plus Platinum efficiency standards. It is designed for users who need maximum power density for gaming builds within a small chassis.
What is the physical size difference between the SilverStone SX750 and the EVGA SuperNOVA?
The SilverStone SX750 measures 3.94 inches in length, fitting the SFX standard. In contrast, the EVGA SuperNOVA 750W Platinum is 6.5 inches long, fitting the standard ATX form factor. This size difference means the EVGA unit cannot fit into small cases designed for SPS power supplies. You must match the form factor to your case dimensions.
Can I find a fully modular SFX power supply with 80 Plus Gold efficiency?
Most SFX options in this list are 80 Plus Platinum. The EVGA SuperNOVA 750 G2 is 80 Plus Gold but is a standard ATX size, not SFX. For SFX builds, you typically choose between 80 Plus Platinum models like the SilverStone SX700 or SX750. Fully modular cabling is common across these high-efficiency SFX units to aid cable management.