Looking Beyond the darkFlash DG850 850W 80 Plus? 6 Alternatives Worth a Look
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You might be looking for darkflash dg850 850w 80 plus alternatives if you need a power supply that fits a specific case size or offers a different warranty period. The darkFlash DG850 delivers 850W of continuous power with 80 Plus Gold efficiency and ATX 3.1 compliance. Its compact 140mm depth helps it fit into smaller mid-tower cases, and it includes a native 12V-2x6 cable for modern NVIDIA graphics cards. However, you may prefer a different form factor, a longer warranty, or a specific aesthetic like white cables.
We selected 6 alternatives that share key specifications with the DG850, including 850W output, 80 Plus Gold efficiency, and ATX 3.1 support. These options provide PCIe 5.1 connectivity for the latest GPUs. Some models offer fully modular designs for cleaner cable management, while others feature different fan sizes or non-modular layouts for simplicity. You can compare their physical dimensions and warranty terms to find the best match for your build requirements.
Our top pick: darkFlash DG850 850W ATX 3.1.
How each alternative compares
Corsair RM850x Shift 850W White ATX Power Supply
The Corsair RM850x Shift shares the 850W output, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 connectivity of the darkFlash DG850. It differs primarily in physical dimensions and aesthetics. Corsair lists a length of 6.3 inches, which is slightly longer than the darkFlash’s 140mm depth. The Corsair unit is white, whereas the darkFlash is black. Both are fully modular. You should choose the Corsair if your case accommodates the extra length or if the white color scheme matches your build. The darkFlash remains the better option for tight spaces where every millimeter of depth matters.
MSI MPG 850W Gold ATX 3.1 Power Supply
The MSI MPG 850W Gold matches the darkFlash DG850 in wattage, efficiency, and modern ATX 3.1 standard support. The key difference is the warranty period. MSI provides a 10-year warranty, which is double the 5-year coverage offered by the darkFlash. Both units feature fully modular designs and the native 12V-2x6 connector for PCIe 5.1 GPUs. The MSI unit weighs more at 7.15 pounds compared to the darkFlash’s 4.19 pounds. If you plan to keep your PC for many years, the extended warranty makes the MSI a more secure investment despite the higher weight.
Thermaltake Toughpower GF3 850W ATX 3.1 PSU
The Thermaltake Toughpower GF3 850W offers the same 850W capacity, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 compatibility as the darkFlash DG850. It is also fully modular with a 12V-2x6 connector. The GF3 has a length of 6.3 inches, which is longer than the compact 140mm form factor of the darkFlash. It shares the black color option. You might prefer the Thermaltake if you prioritize brand familiarity or specific cable management aesthetics. However, if case space is limited, the shorter darkFlash provides the same modern connectivity in a more compact chassis.
Thermaltake Toughpower GX3 850W Gold PSU
The Thermaltake Toughpower GX3 850W matches the darkFlash DG850 in wattage, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 support. It includes a native 12V-2x6 connector and a 5-year warranty, identical to the darkFlash. The GX3 features a 120mm fan, while the darkFlash uses an HDB fan. The GX3 length is 5.9 inches, which is comparable to the darkFlash’s 140mm depth. You should consider the Thermaltake if you have a preference for a 120mm fan size or specific flat cable aesthetics. Otherwise, the darkFlash offers similar protection and connectivity in a similarly sized package.
Thermaltake Toughpower GT 850W
The Thermaltake Toughpower GT 850W provides the same 850W output, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 standards as the darkFlash DG850. It also carries a 5-year warranty. The major difference is physical size. The Thermaltake unit is significantly larger, measuring 10.8 inches in length compared to the darkFlash’s compact 140mm design. It weighs 5.29 pounds. This larger form factor may not fit in smaller or mid-tower cases where the darkFlash excels. Choose the Thermaltake only if you have a spacious case and do not need the space-saving benefits of the shorter darkFlash unit.
Enermax CYBERG II 850W ATX 3.1 Power Supply
The Enermax CYBERG II 850W matches the darkFlash DG850 in wattage, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 support. It includes the native 12V-2x6 connector for modern GPUs. The primary difference is modularity. The Enermax is non-modular, whereas the darkFlash is fully modular. This means you must connect all cables with the Enermax, which can lead to cable clutter. The Enermax is shorter at 5.51 inches. You should pick the Enermax only if you prefer a fixed-cable setup and want a very compact unit. For cleaner builds, the fully modular darkFlash is the superior choice.
Quick picks
Our 7 picks
darkFlash DG850 850W ATX 3.1
Best for: Compact builds with modern NVIDIA GPUs
- Wattage
- 850 W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 5 years
View on Amazon: darkFlash DG850 850W ATX 3.1 Affiliate link
The darkFlash DG850 delivers 850W of continuous power with 80 Plus Gold efficiency. It supports ATX 3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector for modern GPUs. The fully modular design allows you to connect only the cables you need, while the compact 140mm body aids installation in smaller cases. It includes a quiet HDB fan and a 5-year warranty.
Pros
- 80 Plus Gold efficiency rating reduces wasted energy and heat
- Fully modular design for cleaner cable management and better airflow
- Compact 140mm depth fits easily into space-limited gaming builds
- Native 12V-2x6 PCIe 5.1 connector for RTX 40/50 series GPUs
Cons
- 5-year warranty is shorter than the 10-year terms offered by competitors like the CORSAIR RM850x Shift
- HDB fan may not match the silence levels of premium models
- No mention of zero-RPM fan mode for silent operation at low loads
Good fit if
- You need a compact power supply for a mid-tower or smaller case
- You are building a PC with an RTX 40 or 50 series GPU
- You want 80 Plus Gold efficiency for better energy usage
Skip if
- You require a 10-year warranty for long-term peace of mind
- You prefer fully silent operation with zero-RPM fan modes
- You are building a workstation that needs higher than 850W capacity
Verdict: darkFlash DG850 850W ATX 3.1 is a solid choice for gamers who need a compact, efficient power supply with modern PCIe 5.1 support. It fits well in smaller cases where length is a constraint, though you should consider longer warranties if you plan to keep the system for many years.
Corsair RM850x Shift 850W White ATX Power Supply
Best for: silent builds with white aesthetics
- Wattage
- 850W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- PCIe 5.1
- Dimensions
- 6.3 × 5.91 × 3.39 inches
View on Amazon: Corsair RM850x Shift 850W White ATX Power Supply Affiliate link
The Corsair RM850x Shift is a fully modular 850W power supply built to the ATX 3.1 standard. It carries an 80 Plus Gold efficiency rating and supports PCIe 5.1 connections for modern graphics cards. Measuring 6.3 inches long, it fits many cases. You get white cables and a zero RPM fan mode for silent operation at low loads.
Pros
- Fully modular cable management
- 80 Plus Gold efficiency rating
- Supports ATX 3.1 and PCIe 5.1
- Zero RPM fan mode for silence
Cons
- Heavier at 3.75 pounds than some competitors
- Larger footprint at 6.3 inches long
- White cables may clash with dark builds
Good fit if
- You want silent operation at low loads
- You need PCIe 5.1 native support
- You prefer white cable aesthetics
Skip if
- You have a small form factor case
- You prefer black cables for stealth builds
- You want the lightest possible unit
Verdict: Corsair RM850x Shift 850W offers reliable efficiency and modern connectivity for builders prioritizing silence and white aesthetics. It suits mid-tower cases where its 6.3-inch length fits comfortably.
MSI MPG 850W Gold ATX 3.1 Power Supply
Best for: Modern gaming PCs with PCIe 5.1 GPUs
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MPG 850W Gold ATX 3.1 Power Supply Affiliate link
The MSI MPG A850G is a fully modular 850W power supply built for modern gaming rigs. It meets ATX 3.1 standards and includes a native 12V-2x6 cable for PCIe 5.1 GPUs. Japanese 105°C capacitors support stable operation. The compact 5.91-inch design fits smaller cases. It carries a 10-year warranty for long-term reliability.
Pros
- Fully modular cable management
- Native 12V-2x6 PCIe 5.1 connector
- 80 Plus Gold efficiency rating
- 10-year limited warranty
- Compact 5.91-inch form factor
Cons
- Heavier build at 7.15 pounds
- No software monitoring or app control
- Standard ATX dimensions limit extreme small-form-factor builds
Good fit if
- You need a native 12V-2x6 cable for new GPUs
- You want a compact modular unit for mid-size cases
- You prefer long-term warranty coverage
Skip if
- You require digital display or software monitoring
- You are building a non-standard SFX case
- You need a non-modular budget option
Verdict: MSI MPG A850G 850W Gold PSU delivers reliable power for gamers using PCIe 5.1 graphics cards. Its compact size and native connector make it ideal for modern mid-tower builds.
Thermaltake Toughpower GF3 850W ATX 3.1 PSU
Best for: Clean cable management and modern GPU support
- Wattage
- 850W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135mm
View on Amazon: Thermaltake Toughpower GF3 850W ATX 3.1 PSU Affiliate link
This 850W ATX 3.1 power supply features a 135mm fan and native PCIe 5.1 12V-2x6 support. It delivers 80 Plus Gold efficiency and handles GPU power excursions. The full modular design includes flat, color-matched cables for easier routing. It suits builders who want clean cable management and reliable power delivery for modern graphics cards.
Pros
- 135mm Future Dusk fan for efficient cooling
- Native PCIe 5.1 12V-2x6 cable for 600W GPU power
- Full modular flat cables with color-matched connectors
- ATX 3.1 compliant for handling power excursions
Cons
- Standard ATX form factor may not fit small cases
- Black color only in listed variations
- No mention of smart monitoring or app control
Good fit if
- You want flat cables for tidy builds
- You need native PCIe 5.1 support
- You prefer a larger 135mm fan
Skip if
- You require a compact SFX power supply
- You need white color matching
- You want smart monitoring features
Verdict: Thermaltake Toughpower GF3 850W offers clean cable management and modern GPU support. It fits builders prioritizing aesthetics and ATX 3.1 compatibility.
Thermaltake Toughpower GX3 850W Gold PSU
Best for: Standard ATX cases needing PCIe 5.1 support
- Wattage
- 850W
- Efficiency Rating
- 80 Plus Gold
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
- Warranty
- 5 Year
View on Amazon: Thermaltake Toughpower GX3 850W Gold PSU Affiliate link
This Thermaltake unit delivers 850W of power with 80 Plus Gold efficiency and ATX 3.1 support. It features a 120mm fan and native PCIe 5.1 12V-2x6 connectors. The flat cables and compact dimensions help with cable management in smaller cases. You get a 5-year warranty for long-term reliability. It suits builders who need modern GPU connectivity and quiet operation.
Pros
- 80 Plus Gold efficiency rating
- ATX 3.1 standard compatibility
- Native PCIe 5.1 12V-2x6 connector
- 120mm fluid dynamic bearing fan
- 5-year warranty coverage
Cons
- 120mm fan is smaller than the 135mm or 140mm fans found in some competitors
- Physical dimensions are slightly bulkier than some compact modular alternatives
- Flat cables may require more case space for routing
Good fit if
- You need native PCIe 5.1 support for new GPUs
- You prefer flat cables for cleaner builds
- You want a 5-year warranty
Skip if
- You require a fully modular design with individual cable detachability
- You need a 135mm or larger fan for ultra-quiet operation
- You are building in a case with strict height limits under 3.4 inches
Verdict: Thermaltake Toughpower GX3 850W fits builders who need ATX 3.1 compatibility and flat cables for tidy cable management. It is a solid choice for standard ATX cases where its 120mm fan and 5-year warranty provide reliable performance.
Thermaltake Toughpower GT 850W
Best for: modern PCIe 5.1 mid-to-high-end gaming rigs
- Wattage
- 850W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 5 Year
View on Amazon: Thermaltake Toughpower GT 850W Affiliate link
This unit is an 850-watt power supply built for modern systems requiring ATX 3.1 and PCIe 5.1 standards. You get 80 PLUS Gold efficiency, a native 12V-2x6 connector for current graphics cards, and a fully modular layout with flat black cables. The Smart Zero Fan manages noise at lower loads, making it a solid fit for high-draw gaming builds.
Pros
- Native PCIe 5.1 12V-2x6 connector for current graphics cards
- 80 PLUS Gold certification delivering up to 90% efficiency
- Fully modular cable design with low-profile flat black wiring
- Smart Zero Fan technology keeps cooling quiet under lighter loads
Cons
- Five-year warranty is shorter than the 10-year coverage common in this class
- Single +12V rail design provides no multi-rail operation toggle
Good fit if
- You need a native 12V-2x6 connection for an ATX 3.1 and PCIe 5.1 graphics card.
- You prefer a fully modular layout with flat cables to simplify case routing.
- You want quiet operation during everyday low-load desktop use.
Skip if
- You require a power supply backed by a 10-year warranty period.
- You run multi-GPU configurations that demand more than 850W of continuous power.
Verdict: Thermaltake Toughpower GT 850W Modular PSU provides modern ATX 3.1 hardware support and fully modular cabling for builders pairing an 850W capacity with PCIe 5.1 hardware. It serves mid-to-high-tier gaming PCs that do not require an extended 10-year warranty term.
Enermax CYBERG II 850W ATX 3.1 Power Supply
Best for: Non-modular builds needing PCIe 5.1 support
- Wattage
- 850 W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Non-Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V 2x6
- Fan Size
- 120mm
View on Amazon: Enermax CYBERG II 850W ATX 3.1 Power Supply Affiliate link
This Enermax unit delivers 850W of power with an 80 Plus Gold efficiency rating and ATX 3.1 compliance. It features a native PCIe 5.1 12V-2x6 connector for modern GPUs. The design is non-modular, meaning all cables are attached. It includes a 120mm fan and Japanese capacitors for stability. This power supply suits builders who prefer fixed cabling and need reliable support for high-draw components.
Pros
- 80 Plus Gold efficiency rating
- ATX 3.1 and PCIe 5.1 native support
- 120mm silent fan for quiet operation
- 100% Japanese capacitors for durability
- Flat black cables for easier routing
Cons
- Non-modular design limits cable management flexibility
- 120mm fan may be noisier than larger units
- Fixed cables add weight and bulk
Good fit if
- You want a reliable 850W supply without modular complexity
- You need native PCIe 5.1 support for new GPUs
- You prefer fixed cabling for simplicity
Skip if
- You require fully modular cables for clean builds
- You need a larger fan for quieter operation
- You prefer ATX 3.0 over ATX 3.1
Verdict: Enermax CYBERG II 850W Non-Modular is a solid choice for users who prioritize efficiency and modern GPU support without the need for modular cable management. It fits those who value simplicity and reliability in their power supply.
Specifications side by side
| Spec | darkFlash DG850 850W ATX 3.1 | Corsair RM850x Shift 850W White ATX Power Supply | MSI MPG 850W Gold ATX 3.1 Power Supply | Thermaltake Toughpower GF3 850W ATX 3.1 PSU | Thermaltake Toughpower GX3 850W Gold PSU | Thermaltake Toughpower GT 850W | Enermax CYBERG II 850W ATX 3.1 Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | 850 W | 850W | 850W | 850W | 850W | 850W | 850 W |
| Efficiency Rating | 80 Plus Gold | 80 Plus Gold | 80+ Gold | 80 Plus Gold | 80 Plus Gold | 80 PLUS Gold | 80 Plus Gold |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Full Modular | not specified | Fully Modular | Non-Modular |
| ATX Version | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | 12V-2x6 | PCIe 5.1 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V 2x6 |
| Fan Size | not specified | not specified | not specified | 135mm | 120mm | not specified | 120mm |
| Warranty | 5 years | not specified | 10 Year | not specified | 5 Year | 5 Year | not specified |
| Form Factor | ATX | ATX | ATX | ATX | ATX | ATX | ATX |
| PCIe Version | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | not specified | not specified | Gaming | not specified | not specified | not specified | not specified |
| Connector | 12V-2x6 Connector | not specified | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | not specified | not specified |
| Size | 850W | 850W | 850W | 850W | 850W | 850W | 850W |
| Weight | 4.19 pounds | 3.75 pounds | 7.15 pounds | 3.73 pounds | not specified | 5.29 pounds | 3.57 pounds |
| Dimensions | not specified | 6.3 × 5.91 × 3.39 inches | 5.91 × 5.91 × 3.39 inches | 6.3 × 5.9 × 3.4 inches | 5.9 × 5.5 × 3.4 inches | 10.8 × 8.31 × 4.76 inches | 5.51 × 5.91 × 3.39 inches |
| Color | Black | White | not specified | Black | Black | Black | Black |
| Model | DG850 | not specified | MPG A850G PCIE 5 | PS-TPD-0850FNFAGU-4 | PS-TPD-0850NNFAGU-3 | PS-TPT-0850FNFAGU-3 | ERV850G-AHG-NAC |
Frequently asked questions
Which 850W PSU is best for a compact build?
The darkFlash DG850 is a solid choice for gamers needing a compact unit with modern PCIe 5.1 support. It fits well in smaller cases where length is a constraint. The Corsair RM850x Shift also offers a compact form factor with a 6.3-inch length, making it suitable for mid-tower cases that prioritize silence and white aesthetics.
Does the darkFlash DG850 support the latest GPU connectors?
Yes, the darkFlash DG850 supports PCIe 5.1 connectivity under the ATX 3.1 standard. This ensures compatibility with modern NVIDIA graphics cards. Other alternatives like the MSI MPG and Thermaltake Toughpower GF3 also feature PCIe 5.1 support and native 12V-2x6 connectors for reliable power delivery to high-end GPUs.
What is the best budget-friendly 850W option?
The Corsair RM850x Shift is identified as the best budget option. It offers 80 Plus Gold efficiency and fully modular cables. It supports ATX 3.1 and PCIe 5.1 standards. Its white color and 6.3-inch length make it a practical choice for builders who want reliable efficiency without extra bulk in their mid-tower cases.
Which PSU has the longest warranty among these alternatives?
The MSI MPG 850W Gold ATX 3.1 Power Supply stands out with a 10-year warranty. It delivers reliable power for gamers using PCIe 5.1 graphics cards. Its compact size and native connector make it ideal for modern mid-tower builds. Most other listed options, like the Thermaltake Toughpower GX3, offer a 5-year warranty.
Is there a non-modular 850W ATX 3.1 option?
Yes, the Enermax CYBERG II 850W is a non-modular option. It provides 80 Plus Gold efficiency and ATX 3.1 compatibility with PCIe 5.1 support. This model suits users who prioritize simplicity and reliability without needing modular cable management. It is a compact unit at 5.51 inches in length.
Can I find a white 850W power supply?
The Corsair RM850x Shift is available in white. It features 80 Plus Gold efficiency and fully modular cables. It supports ATX 3.1 and PCIe 5.1 standards. This color option makes it suitable for builders prioritizing aesthetics in mid-tower cases where its 6.3-inch length fits comfortably alongside other white components.
Which PSU uses a 120mm fan?
The Thermaltake Toughpower GX3 850W Gold PSU uses a 120mm fan. It offers ATX 3.1 compatibility and PCIe 5.1 support. The unit features flat cables for tidy cable management. It is a solid choice for standard ATX cases where its fan size and 5-year warranty provide reliable performance for modern systems.
What is the weight of the Thermaltake Toughpower GT?
The Thermaltake Toughpower GT 850W weighs 5.29 pounds. It is a larger unit with dimensions of 10.8 inches in length. It supports ATX 3.1 and PCIe 5.1 standards for efficient power delivery. This model fits users who prioritize standard ATX compatibility and robust power delivery for modern graphics cards.