Enermax CYBERG II 650W ATX vs Enermax Revolution III 850W ATX (2026): Key Differences
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You are deciding between the enermax cyberg ii 650 watt vs revolution iii 850 watt for your next build. Both units share the same ATX 3.1 standard and PCIe 5.1 support, ensuring compatibility with modern graphics cards. They also feature 120 mm fans and 6-way protection circuits. The main difference lies in power output and cable management. The CYBERG II offers 650 watts in a non-modular design, while the Revolution III provides 850 watts with full modularity and 80 PLUS Gold efficiency.
Key differences
| Aspect | Enermax CYBERG II 650W ATX 3.1 Power Supply | Enermax Revolution III 850W ATX 3.1 PSU |
|---|---|---|
| Wattage | 650 W | 850 W |
| Modularity | Non-Modular | Full Modular |
| Efficiency Rating | not listed | 80 PLUS Gold |
| 12V-2x6 Cable Rating | 450 W | 600 W |
| Fan Type | Sleeve bearing | FDB (Fluid Dynamic Bearing) |
Which one should you choose?
Choose Enermax CYBERG II 650W ATX 3.1 Power Supply if
- You need a budget-friendly option for mid-range systems.
- You prefer a fixed cable setup and do not mind less customization.
- You are building a PC with lower power requirements under 650 W.
Choose Enermax Revolution III 850W ATX 3.1 PSU if
- You require higher wattage for powerful GPUs or workstations.
- You want cleaner cable management with full modularity.
- You prioritize higher efficiency ratings to reduce energy waste.
Verdict: Choose the CYBERG II if your system does not exceed 650 W and you want a straightforward, non-modular solution. The Revolution III is the better choice for high-end builds needing 850 W, full modularity, and certified gold efficiency.
Efficiency and Modularity Comparison
Efficiency rating
The Enermax Revolution III 850W ATX 3.1 PSU holds an 80 PLUS Gold certification. This standard confirms that the unit maintains an efficiency of over 90% at standard load conditions. Higher efficiency means less energy is wasted as heat during conversion. The CYBERG II 650W ATX 3.1 Power Supply lists an efficiency of up to 90% in its features, but it does not carry a specific 80 PLUS certification badge in the provided data. Gold certification provides a verified benchmark for energy savings, making the Revolution III the clearer choice for efficiency-conscious builders.
Modularity type
Cable management significantly impacts airflow and aesthetics inside your case. The Revolution III 850W is fully modular, allowing you to connect only the cables you need. This reduces clutter and simplifies routing through tight spaces. In contrast, the CYBERG II 650W is non-modular, meaning all cables are permanently attached to the unit. While the CYBERG II features flat black cables for a cleaner look, the fixed nature of these cables can make installation more difficult in smaller cases. Full modularity offers greater flexibility for custom builds.
Wattage capacity
Power output determines how many components you can run simultaneously. The Revolution III 850W delivers 850 watts of continuous power, providing ample headroom for high-end graphics cards and processors. The CYBERG II 650W offers 650 watts, which is sufficient for mid-range systems but leaves less room for future upgrades or extreme load scenarios. If you plan to use a powerful GPU that draws significant power, the higher wattage of the Revolution III ensures stable operation under heavy gaming or rendering workloads.
PCIe power support
Both units support the latest PCIe 5.1 standard and use the 12V-2x6 connector for modern graphics cards. However, the maximum power delivery differs. The Revolution III 850W supports a 600W 12V-2x6 cable, allowing it to feed high-end GPUs directly without adapters. The CYBERG II 650W supports a 450W 12V-2x6 cable. While both include power excursion reserves of up to 200% for stability, the Revolution III can handle more demanding graphics cards natively. This makes it better suited for top-tier gaming rigs.
Fan bearing type
The cooling system affects noise levels and longevity. The CYBERG II 650W uses a 120 mm sleeve bearing fan, which allows for quiet operation according to the product description. The Revolution III 850W features a whisper-quiet FDB (Fluid Dynamic Bearing) fan. FDB bearings generally offer smoother operation and longer lifespans compared to sleeve bearings. While both units are designed for quiet performance, the specific bearing type in the Revolution III suggests a potential advantage in long-term reliability and noise consistency under load.
Physical dimensions
Both power supplies share identical external dimensions. The width is 5.91 inches, the height is 3.39 inches, and the length is 5.51 inches. This standard ATX form factor ensures compatibility with most mid-tower and full-tower cases. You do not need to worry about fitment issues regarding the chassis size for either unit. The only physical difference is weight, with the Revolution III weighing 3.86 pounds compared to the CYBERG II at 2.51 pounds, but this does not impact installation compatibility.
Choose the right Enermax PSU
Budget-focused builders with mid-range GPUs
The CYBERG II offers 650W of power with a 450W 12V-2x6 cable. This provides a 200% power excursion reserve for sudden load surges. Its non-modular design reduces cost while maintaining 90% efficiency. It suits users who do not need extra cable management flexibility or higher wattage.
Users needing high power and clean cables
The Revolution III delivers 850W with a 600W 12V-2x6 cable for heavy loads. Full modularity allows you to route only the cables you need. The 80 PLUS Gold rating ensures over 90% efficiency. Individual mesh sheaths make cable management easier and improve airflow inside your case.
Those prioritizing quiet operation and efficiency
This unit features a whisper-quiet FDB fan and 80 PLUS Gold certification. Higher efficiency reduces heat and energy waste. The fully modular design helps keep the interior tidy. These specs make it ideal for users who value silent performance and reduced power consumption in their daily builds.
The products compared
Enermax CYBERG II 650W ATX 3.1 Power Supply
Best for: Budget mid-range builds needing PCIe 5.1
- Wattage
- 650 Watt
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Non-Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12 V-2 x 6, PCIe (6+2)
- Fan Size
- 120mm
View on Amazon: Enermax CYBERG II 650W ATX 3.1 Power Supply Affiliate link
The Enermax CYBERG II is a non-modular 650 W ATX 3.1 power supply. It includes a 120 mm sleeve bearing fan and flat black cables. The unit features a 12V-2x6 PCIe 5.1 connector for modern GPUs. It offers 90% efficiency and 6-way protection. This model suits users building mid-range systems who do not need modular cable management.
Pros
- ATX 3.1 standard with PCIe 5.1 12V-2x6 connector
- 90% efficiency rating reduces energy costs
- 120 mm sleeve bearing fan for quiet operation
- 6-way protection circuit for safety
Cons
- Non-modular design requires managing all cables
- 120 mm fan is smaller than typical 120-140 mm units
- Sleeve bearing fan may have shorter lifespan than fluid dynamic bearing
Good fit if
- You are building a mid-range PC with an ATX 3.1 compatible GPU
- You prefer a lower cost non-modular unit
- You need a 12V-2x6 connector for newer graphics cards
Skip if
- You require fully modular cables for clean builds
- You need higher wattage than 650 W
- You prefer silent operation with larger fans
Verdict: Enermax CYBERG II 650W ATX 3.1 is a practical choice for budget-conscious builders who need modern PCIe 5.1 support without the complexity of modular cables. It fits users prioritizing basic efficiency and safety over cable management flexibility.
Enermax Revolution III 850W ATX 3.1 PSU
Best for: High-end gaming and workstation builds
- Wattage
- 850 W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120 mm
View on Amazon: Enermax Revolution III 850W ATX 3.1 PSU Affiliate link
The Enermax Revolution III 850W is a fully modular power supply designed for high-end builds. It features ATX 3.1 compliance and supports PCIe 5.1 with a 600W 12V-2x6 cable. This unit offers 80 PLUS Gold efficiency, reducing heat and waste. The included full-length mesh cables aid cable management. It is suited for users needing stable power for modern GPUs and processors.
Pros
- 850W output supports high-end GPUs
- ATX 3.1 and PCIe 5.1 ready
- 80 PLUS Gold efficiency rating
- Fully modular design with mesh cables
Cons
- Heavier at 3.86 pounds
- 120 mm fan may be less compact
- No LCD display for monitoring
Good fit if
- You need PCIe 5.1 support for new GPUs
- You want high efficiency to reduce heat
- You prefer fully modular cable management
Skip if
- You need more than 850W of power
- You require a non-modular unit for simplicity
- You are on a tight budget for lower wattage
Verdict: Enermax Revolution III 850W ATX 3.1 is a solid choice for builders requiring stable power for modern graphics cards. It fits users who prioritize efficiency and clean cable routing.
Specifications side by side
| Spec | Enermax CYBERG II 650W ATX 3.1 Power Supply | Enermax Revolution III 850W ATX 3.1 PSU |
|---|---|---|
| Wattage | 650 Watt | 850 W |
| Efficiency Rating | 80 PLUS Gold | 80 PLUS Gold |
| Modularity | Non-Modular | Full Modular |
| ATX Version | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | 12 V-2 x 6, PCIe (6+2) | 12V-2x6 |
| Fan Size | 120mm | 120 mm |
| Form Factor | ATX | ATX |
| PCIe Version | PCIe 5.1 | PCIe 5.1 |
| Size | 650W | not stated |
| Dimensions | 5.51 × 5.91 × 3.39 inches | 5.51 × 5.91 × 3.39 inches |
| Weight | 2.51 pounds | 3.86 pounds |
| Color | Black | Black |
| Model | ERV650G-AHG-NAC | ERV850G-AHG-MAC |
Frequently asked questions
Is the Enermax CYBERG II 650W fully modular?
No, the Enermax CYBERG II 650W ATX 3.1 is non-modular. This means all cables are permanently attached to the unit. You must manage the extra cable length inside your case. This design choice helps keep the price lower compared to fully modular alternatives like the Revolution III 850W.
What is the physical size of the Enermax CYBERG II?
The Enermax CYBERG II 650W measures 5.91 inches in width, 3.39 inches in height, and 5.51 inches in length. It weighs 2.51 pounds. These dimensions follow the standard ATX form factor, allowing it to fit in most mid-tower and full-tower computer cases without spatial issues.
Does the Revolution III 850W support PCIe 5.1?
Yes, the Enermax Revolution III 850W ATX 3.1 supports PCIe 5.1. This ensures compatibility with the latest graphics cards requiring high power delivery. It shares this modern standard with the CYBERG II 650W, making both units suitable for current and future GPU generations.
How much heavier is the Revolution III compared to the CYBERG II?
The Enermax Revolution III 850W weighs 3.86 pounds, while the CYBERG II 650W weighs 2.51 pounds. The Revolution III is 1.35 pounds heavier. This extra weight often correlates with larger internal components and higher power handling capabilities found in the 850W model.
Can I use the CYBERG II for a high-end workstation?
The CYBERG II 650W is best for budget mid-range builds. It provides 650W of total power. High-end workstations typically require more stable and higher wattage power. The Revolution III 850W is the better choice for those demanding stable power for professional graphics cards and intensive tasks.
Are both units ATX 3.1 compliant?
Yes, both the Enermax CYBERG II 650W and the Revolution III 850W are ATX 3.1 compliant. This standard ensures they meet modern power supply requirements. It includes support for PCIe 5.1 and improved power delivery protocols, making both units future-proof for new hardware releases.
What efficiency rating does the Revolution III have?
The Enermax Revolution III 850W holds an 80 PLUS Gold certification. This rating confirms it maintains over 90% efficiency at standard load conditions. Higher efficiency reduces energy waste as heat. The CYBERG II also offers 90% efficiency but lacks the official Gold certification label in its specs.
Is the Revolution III fully modular?
Yes, the Enermax Revolution III 850W is fully modular. You can connect only the cables you need for your build. This feature simplifies cable management and improves airflow inside your case. The CYBERG II lacks this flexibility as it is a non-modular unit.