Auotac 1000W Gold ATX 3.1 Alternatives: 6 Similar Picks Compared
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The Auotac 1000W Gold ATX 3.1 Power Supply delivers 92% efficiency and native PCIe 5.1 support with a 12V-2x6 connector. If you are searching for auotac 1000w fully modular power alternatives, you may want different dimensions or brands. This unit measures 6x3.7x6 inches and weighs 3.2 pounds. Other builders might prefer a smaller footprint for tight cases or a specific color option.
This list includes 6 similar picks that share key specifications like 80 PLUS Gold efficiency, full modularity, and ATX 3.1 compliance. You can find options ranging from 850W to 1000W. Some units prioritize compact size, while others offer longer warranties or quieter operation. All listed products support modern GPU transient spikes. Review the specs below to find the best fit for your chassis and component needs.
How each alternative compares
MSI 1000W Fully Modular Gold PSU
The MSI MPG A1000GS shares the 1000W output, 80 PLUS Gold efficiency, and ATX 3.1 standard. It also includes the native 12V-2x6 connector for PCIe 5.1 GPUs. The main difference is size. This unit measures 11.5 by 9.5 by 5.4 inches and weighs 8.82 pounds. The Auotac is much smaller at 6 by 6 by 3.7 inches. You need a large case for the MSI. Both offer a 10-year warranty. Choose the MSI if you have ample space and prefer a larger chassis footprint. Pick the Auotac for tighter builds where compact dimensions matter more than brand recognition.
Thermaltake Toughpower GT 1000W ATX 3.1 PSU
The Thermaltake Toughpower GT provides 1000W with ATX 3.1 compliance and PCIe 5.1 support. It uses the same 12V-2x6 connector as the Auotac. Its key advantage is physical size. It measures 5.9 by 5.5 by 3.4 inches. This makes it slightly smaller than the Auotac. The Auotac is 6 by 6 by 3.7 inches. Both are fully modular. The Thermaltake lacks the specific cable management tools listed for the Auotac. If you need the smallest possible 1000W unit for a compact case, the Thermaltake fits best. If you want included accessories like a tester and comb, stick with the Auotac.
MSI MAG 850W Fully Modular ATX Power Supply
The MSI MAG A850GL offers 850W instead of 1000W. It retains ATX 3.1 support and the 12V-2x6 connector. Efficiency is 80 PLUS Gold. This unit is fully modular. It has a 10-year warranty like the Auotac. The size is 12 by 8.75 by 4.92 inches. This is longer and taller than the Auotac. You save 150W of power. This is sufficient for many high-end GPUs. Choose this if you do not need the full 1000W. It is a budget-friendly option for PCIe 5.1 readiness. The Auotac is better if your GPU requires higher transient power handling or you plan to upgrade further.
Corsair RM1000x 1000W ATX 3.1 PSU
The Corsair RM1000x matches the Auotac with 1000W output and ATX 3.1 compliance. It includes the 12V-2x6 connector for modern GPUs. It is fully modular. The Corsair measures 5.91 by 3.39 by 2.3 inches. This is significantly shorter than the Auotac. The Auotac is 6 by 6 by 3.7 inches. The Corsair is also heavier at 6.88 pounds. Both lack listed warranty details in the provided data for direct comparison, but Corsair is known for support. Pick the Corsair if you want a very short unit for small form factor builds. The Auotac is better if you prefer included cable management tools.
MSI MPG 850W Gold ATX 3.1 Power Supply
The MSI MPG A850G provides 850W, which is less than the Auotac’s 1000W. It shares ATX 3.1 support and the 12V-2x6 connector. It is fully modular and 80 PLUS Gold rated. The size is 5.91 by 5.91 by 3.39 inches. This is slightly shorter and narrower than the Auotac. It weighs 7.15 pounds. The Auotac is lighter at 3.2 pounds. Both come with a 10-year warranty. Choose the MSI if you want a compact 850W unit with a strong brand reputation. The Auotac offers more power and includes a tool kit. It is better for users who need the extra wattage and accessories.
Thermaltake Toughpower GF3 1000W ATX 3.1
The Thermaltake Toughpower GF3 delivers 1000W with ATX 3.1 and PCIe 5.1 support. It uses the 12V-2x6 connector. It is fully modular. The size is 6.3 by 5.9 by 3.4 inches. This is very close to the Auotac’s 6 by 6 by 3.7 inches. The Thermaltake weighs 3.95 pounds. The Auotac is lighter at 3.2 pounds. Both are suitable for standard ATX cases. The Auotac includes a cable management comb and tester. The Thermaltake does not list these extras. Pick the Thermaltake if you prefer its brand or specific cable style. The Auotac is better if you want the included tools for easier setup.
Quick picks
Our 7 picks
Auotac 1000W Gold ATX 3.1 Power Supply
Best for: High-efficiency builds with modern GPUs
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 140mm
View on Amazon: Auotac 1000W Gold ATX 3.1 Power Supply Affiliate link
This Auotac unit delivers 1000W of 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 includes a 140mm fan and ARGB lighting. It uses Japanese capacitors rated for 105°C and comes with a 10-year warranty. This PSU suits builders who want high efficiency and smart cable management for high-end systems.
Pros
- 1000W output with 80 PLUS Gold efficiency
- ATX 3.1 and PCIe 5.1 compatibility
- Fully modular design with 140mm fan
- 10-year limited warranty
Cons
- Larger 6-inch width than compact alternatives
- ARGB lighting may not suit all builds
- Heavier at 3.2 pounds
Good fit if
- You need native PCIe 5.1 support
- You want high efficiency for lower heat
- You prefer fully modular cable management
Skip if
- You require a compact SFX form factor
- You want zero RGB lighting effects
- You need a smaller 120mm fan profile
Verdict: Auotac 1000W Gold ATX 3.1 is a robust choice for builders prioritizing efficiency and modern GPU standards. It fits well in standard ATX cases where size is not a constraint.
MSI 1000W Fully Modular Gold PSU
Best for: high-end gaming PCs needing 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI 1000W Fully Modular Gold PSU Affiliate link
The MSI MPG A1000GS is a fully modular 1000W power supply with 80+ Gold efficiency and ATX 3.1 compliance. It features dual 12V-2x6 connectors for modern GPUs and uses server-grade Japanese capacitors. This unit offers a 10-year warranty and comprehensive industrial protections. It suits gamers building high-end systems that require stable power delivery and future-proof PCIe connections.
Pros
- 1000W output capacity
- 80+ Gold efficiency rating
- Fully modular cable design
- 10-year warranty coverage
- Dual 12V-2x6 PCIe connectors
Cons
- Large dimensions at 11.5 inches long
- Heavy build at 8.82 pounds
- No mention of low-noise fan mode
Good fit if
- You need a 1000W power supply for a high-end gaming rig
- You require ATX 3.1 compatibility with native 12V-2x6 connectors
- You want a fully modular design for clean cable management
Skip if
- You have a small form factor case with limited PSU length
- You are building a low-power system that does not need 1000W
- You prefer a compact 850W unit to save space
Verdict: MSI MPG A1000GS 1000W Gold PSU provides robust power and modern connectors for demanding builds, though its large size may not fit smaller cases.
Thermaltake Toughpower GT 1000W ATX 3.1 PSU
Best for: Compact high-wattage builds with modern GPUs
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
View on Amazon: Thermaltake Toughpower GT 1000W ATX 3.1 PSU Affiliate link
The Thermaltake Toughpower GT 1000W is a fully modular ATX 3.1 power supply designed for high-end builds. It features a native PCIe 5.1 12V-2x6 cable capable of delivering 600W to modern graphics cards. The unit measures 140mm in length, making it suitable for compact cases. It uses a 120mm fan with Smart Zero Fan mode for quiet operation. This unit suits users needing reliable power for demanding GPUs.
Pros
- 1000W output with ATX 3.1 compliance
- Native PCIe 5.1 12V-2x6 cable for 600W GPU power
- Compact 140mm length fits smaller cases
- Flat color-matched cables improve cable management
Cons
- 120mm fan is smaller than the standard 140mm found in many competitors
- No mention of app-based monitoring or control software
- Lacks a digital display for real-time power metrics
Good fit if
- You need a compact 1000W PSU for a small form factor case
- You are building with a high-end GPU requiring PCIe 5.1 power
- You prefer flat, color-matched cables for cleaner builds
Skip if
- You require a larger 140mm fan for potentially quieter operation
- You want built-in app control or monitoring features
- You prefer a standard ATX size without compact constraints
Verdict: Thermaltake Toughpower GT 1000W fits users who need compact high-wattage power for modern GPUs. Its native PCIe 5.1 support and small footprint make it ideal for tight builds.
MSI MAG 850W Fully Modular ATX Power Supply
Best for: Gaming builds needing PCIe 5.1 support
- 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 MAG 850W Fully Modular ATX Power Supply Affiliate link
The MSI MAG A850GL is a fully modular 850W power supply built for gaming. It carries an 80+ Gold efficiency rating and supports ATX 3.1 standards. You get a native 12V-2x6 connector for PCIe 5.1 compatibility. The unit measures 12 inches long and 8.75 inches wide. It includes a 10-year warranty. This model suits users who need reliable power for high-end graphics cards in a standard ATX case.
Pros
- 850W output capacity
- 80+ Gold efficiency rating
- Native 12V-2x6 PCIe 5.1 connector
- 10-year warranty coverage
- Fully modular cable design
Cons
- 850W is lower than the 1000W options on this list
- 12-inch length may not fit smaller cases
- No mention of low-noise fan technology
Good fit if
- You need native PCIe 5.1 support for modern GPUs
- You want a fully modular design for clean builds
- You prefer a 10-year warranty for long-term use
Skip if
- You require 1000W or higher for extreme overclocking
- Your case has strict length limits under 12 inches
- You are building a compact ITX system
Verdict: MSI MAG A850GL 850W Gold PSU offers solid efficiency and modern connectivity. It fits gamers who prioritize PCIe 5.1 readiness and long warranty support over raw wattage.
Corsair RM1000x 1000W ATX 3.1 PSU
Best for: quiet builds needing PCIe 5.1 support
- Wattage
- 1000W
- Efficiency Rating
- Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- PCIe Version
- PCIe 5.1
View on Amazon: Corsair RM1000x 1000W ATX 3.1 PSU Affiliate link
This Corsair unit delivers 1000W of power with ATX 3.1 compliance and native PCIe 5.1 support via a 12V-2x6 connector. It features fully modular cabling and Cybenetics Gold efficiency certification. The design measures 2.3 inches in length, making it compact for most cases. You will appreciate the low-noise operation and reliable connectivity for high-end builds.
Pros
- 1000W continuous power output
- ATX 3.1 compliant design
- Native PCIe 5.1 12V-2x6 connector
- Fully modular cable management
- Cybenetics Gold efficiency rating
Cons
- Heavier at 6.88 pounds compared to lighter alternatives
- Cybenetics Gold rating is a third-party standard rather than 80 PLUS Gold
- Larger width of 3.39 inches may not fit all small form factor cases
Good fit if
- You need native support for the latest PCIe 5.1 graphics cards
- You prioritize quiet operation with low-noise design
- You want fully modular cables for clean builds
Skip if
- You require strict 80 PLUS Gold certification
- You have a very tight case width constraint
- You prefer a lighter power supply for portable builds
Verdict: Corsair RM1000x Fully Modular ATX 3.1 suits builders who need modern PCIe 5.1 connectivity and quiet performance in a fully modular package.
MSI MPG 850W Gold ATX 3.1 Power Supply
Best for: Compact gaming builds needing PCIe 5.1 support
- 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 connector for direct GPU power. The unit uses 100% Japanese 105°C capacitors for stable operation. You get an 80 Plus Gold efficiency rating and a 10-year warranty. Its compact 5.91-inch length fits well in smaller cases.
Pros
- 850W output with 80 Plus Gold efficiency
- ATX 3.1 compliant with native 12V-2x6 cable
- Fully modular design for clean cable management
- 10-year limited warranty for long-term reliability
Cons
- 850W is lower than the 1000W options on this list
- Heavier build at 7.15 pounds compared to lighter competitors
- Compact size limits cable routing space in very tight cases
Good fit if
- You need native PCIe 5.1 support for new GPUs
- You prefer a fully modular setup for cleaner builds
- You want a 10-year warranty for peace of mind
Skip if
- You require 1000W or higher for extreme overclocking
- You are building a system with limited case depth
- You need a non-modular unit for budget reasons
Verdict: MSI MPG A850G 850W Gold PSU fits gamers who want modern ATX 3.1 features and a long warranty without the bulk of a 1000W unit.
Thermaltake Toughpower GF3 1000W ATX 3.1
Best for: Standard ATX cases needing clean cable routing
- Wattage
- 1000W
- 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 1000W ATX 3.1 Affiliate link
This 1000W fully modular power supply meets ATX 3.1 standards with 80 Plus Gold efficiency. It includes a native PCIe 5.1 12V-2x6 cable for modern GPUs. The unit features a 135mm fan and flat, color-matched cables for easier routing. You get reliable power delivery with low load efficiency. It suits builders who want clean cable management and high wattage.
Pros
- 1000W capacity for high-end builds
- ATX 3.1 compliance with 80 Plus Gold rating
- Native PCIe 5.1 12V-2x6 connector for GPUs
- 135mm Future Dusk fan for cooling
- Full modular design with flat, color-matched cables
Cons
- Larger 135mm fan may not fit small cases
- Heavier at 3.95 pounds than compact alternatives
- Standard ATX form factor limits tight builds
Good fit if
- You need native PCIe 5.1 support for new GPUs
- You prefer flat cables for cleaner routing
- You have a mid-tower or full-tower case
Skip if
- You are building in a compact SFF case
- You require a smaller 120mm fan profile
- You need a lower wattage unit like 850W
Verdict: Thermaltake Toughpower GF3 1000W is a solid choice for standard ATX cases where cable management and modern GPU support matter. It fits users who prioritize flat cables and high efficiency over compact size.
Specifications side by side
| Spec | Auotac 1000W Gold ATX 3.1 Power Supply | MSI 1000W Fully Modular Gold PSU | Thermaltake Toughpower GT 1000W ATX 3.1 PSU | MSI MAG 850W Fully Modular ATX Power Supply | Corsair RM1000x 1000W ATX 3.1 PSU | MSI MPG 850W Gold ATX 3.1 Power Supply | Thermaltake Toughpower GF3 1000W ATX 3.1 |
|---|---|---|---|---|---|---|---|
| Wattage | 1000W | 1000W | 1000W | 850W | 1000W | 850W | 1000W |
| Efficiency Rating | 80 PLUS Gold | 80+ Gold | 80 Plus Gold | 80+ Gold | Cybenetics Gold | 80+ Gold | 80 Plus Gold |
| Modularity | Fully Modular | Fully Modular | Full Modular | Fully Modular | Fully Modular | Fully Modular | Full 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 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 |
| Fan Size | 140mm | not specified | 120mm | not specified | not specified | not specified | 135mm |
| Warranty | 10-Year | 10 Year | not specified | 10 Year | not specified | 10 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 | Gaming | not specified | Gaming | not specified | Gaming | not specified |
| Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector |
| Size | 1000W | 1000W | 1000W | 850W (PCIE 5) | 1000W | 850W | 1000W |
| Dimensions | 6 × 6 × 3.7 inches | 11.5 × 9.5 × 5.4 inches | 5.9 × 5.5 × 3.4 inches | 12 × 8.75 × 4.92 inches | 2.3 × 3.39 × 5.91 inches | 5.91 × 5.91 × 3.39 inches | 6.3 × 5.9 × 3.4 inches |
| Weight | 3.2 pounds | 8.82 pounds | not specified | not specified | 6.88 pounds | 7.15 pounds | 3.95 pounds |
| Color | White | Black | Black | not specified | Black | not specified | Black |
| Model | S-850MZ | MPG A1000GS PCIE5 | PS-TPT-1000FNFAGU-3 | not specified | not specified | MPG A850G PCIE 5 | PS-TPD-1000FNFAGU-4 |
Frequently asked questions
Which 1000W alternatives offer the smallest footprint for tight cases?
The Thermaltake Toughpower GT 1000W ATX 3.1 measures 5.9 by 5.5 by 3.4 inches, making it one of the most compact options. The Corsair RM1000x is also small at 2.3 by 5.91 by 3.39 inches. These units fit builds where space is limited, unlike the bulkier MSI MPG A1000GS which spans 11.5 inches in length.
Do all listed alternatives support PCIe 5.1 graphics cards?
Yes, every unit in this list supports PCIe 5.1 standards. They all include the native 12V-2x6 connector required for modern high-end GPUs. This ensures compatibility with the latest graphics cards without needing adapters, providing direct power delivery for optimal performance in demanding gaming or workstation setups.
Are all these power supplies fully modular?
Yes, every alternative listed is fully modular. This means you can detach all cables from the unit itself, allowing for cleaner cable management inside your case. You only connect the cables you actually need, reducing clutter and improving airflow compared to semi-modular or non-modular designs.
Which options provide the longest warranty coverage?
Several MSI models, including the MPG A1000GS and the MAG A850GL, offer a 10-year warranty. The MPG A850G also includes this 10-year support period. This extended coverage provides long-term reliability assurance for your build, matching the support levels of other premium brands in the 1000W category.
How do the weights of these units compare?
Weights vary significantly based on internal components and casing. The MSI MPG A1000GS is the heaviest at 8.82 pounds. The Corsair RM1000x weighs 6.88 pounds, while the Thermaltake Toughpower GF3 is lighter at 3.95 pounds. The Auotac unit weighs 3.2 pounds. Heavier units often indicate more robust internal construction.
Is 80 Plus Gold efficiency standard across all these models?
Most units listed carry the 80 Plus Gold certification, including the Auotac, MSI MPG A1000GS, Thermaltake Toughpower GT, and MSI MPG A850G. This rating indicates high energy efficiency, reducing power waste and heat generation. The Corsair RM1000x and Thermaltake Toughpower GF3 also meet this standard for efficient operation.
Which alternative is best for quiet operation?
The Corsair RM1000x is specifically noted for quiet performance in its description. It suits builders who prioritize low noise levels alongside modern connectivity. While other units also offer efficient cooling, the Corsair model is highlighted for its ability to maintain a silent operation during typical gaming or computing loads.
What is the difference between the 850W and 1000W options?
The 850W models, like the MSI MAG A850GL and MPG A850G, offer slightly less power than the 1000W units. They are suitable for builds that do not require maximum wattage but still want ATX 3.1 features. The 1000W options provide more headroom for extreme overclocking or multiple high-end components.