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Thermaltake Toughpower GX3 850W 80Plus Gold SLI/Crossfire Ready ATX 3.0 Power Supply; PCIe5 12VHPWR Connector Included; 5 Year Warranty; PS-TPD-0850NNFAGU-3
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AI Verdict
This 850W ATX 3.0, 80 PLUS Gold, non-modular power supply with a 450W PCIe 5.0 12VHPWR connector is for builders needing next-gen GPU support on a budget.
This 850W ATX 3.0 power supply is a situational fit, offering PCIe 5.0 readiness with a 450W 12VHPWR connector and 80 PLUS Gold efficiency. Its non-modular design and reported thermal stress under high temperatures mean it's not for every build, especially those prioritizing aesthetics or extreme thermal conditions.
If cable management is a priority or you need more than 450W from a single 12VHPWR connection, look for a fully modular PSU with a higher wattage 12VHPWR output.
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Pros
- Fully compatible with Intel ATX 3.0 specifications, supporting up to 200% power excursion.
- Includes a native PCIe Gen 5.0 12VHPWR connector, capable of delivering up to 450W for PCIe 5.0 graphics cards.
- Features an 80 PLUS Gold certification, indicating energy efficiency during operation.
- Equipped with a 120mm Fluid Dynamic Bearing fan designed for quiet operation.
- Backed by a 5-year warranty, providing coverage for a significant period.
- Built with industrial-grade protections to safeguard hardware from electrical irregularities.
Cons
- Non-modular design means all cables are permanently attached, potentially leading to excess cable clutter in smaller cases.
- The native 12VHPWR connector delivers up to 450W, which might be insufficient for some higher-power PCIe 5.0 GPUs.
- Some users have reported issues with longevity and units failing within months of use.
- Can experience severe thermal stress when operating under high ambient temperatures.
- The 120mm fan can become noticeable under full system load, peaking around 60.6 dB.
Dimension Scores
The unit is 80 PLUS Gold certified and fully compatible with ATX 3.0 standards, supporting up to 200% power excursion.
It features a 120mm Fluid Dynamic Bearing fan designed for quiet operation, though it can reach 60.6 dB under full load.
It includes industrial-grade protections and 105°C electrolytic capacitors, but some users have reported reliability issues over time.
The non-modular design means all cables are permanently attached, making cable management more challenging compared to modular units.
Best For
- PC builds requiring ATX 3.0 and PCIe 5.0 readiness for newer components.
- Systems with mid-range to high-end GPUs that draw up to 450W via the 12VHPWR connector.
- Builders prioritizing a 5-year warranty for peace of mind.
- Users who do not mind managing non-modular cables in their build.
Not Recommended For
- Compact PC cases where cable management space is extremely limited.
- High-end systems with GPUs that demand more than 450W from a single 12VHPWR connector.
- Environments with consistently high ambient temperatures or poor case airflow.
Watch Out For
- The non-modular cable design means you'll have extra cables to tuck away, which can be a hassle in smaller cases or if you're aiming for a super clean build.
- While it has a 12VHPWR connector, it's capped at 450W. If your next-gen GPU needs more power through that single cable, you might hit a wall.
- Some users have experienced units failing after only a few months, leading to warranty claims and downtime.
- This unit can struggle with thermal stress if your room or case gets too hot, potentially impacting its performance and lifespan.
Full Specifications
| ASIN | B0CBQZFPL2 |
| Brand | Thermaltake |
| Color | Black |
| Series | GX3 |
| Wattage | 850 watts |
| Model Name | GX3 |
| Form Factor | ATX |
| Item Weight | 4.41 pounds |
| Manufacturer | Thermaltake |
| Connector Type | ATX, Molex, PCI Express, SATA |
| Cooling Method | Air |
| Output Wattage | 850 |
| Item model number | PS-TPD-0850NNFAGU-3 |
| Compatible Devices | Personal Computer |
| Product Dimensions | 5.9 x 5.5 x 3.4 inches |
| Item Dimensions LxWxH | 5.9 x 5.5 x 3.4 inches |
| Item dimensions L x W x H | 5.9 x 5.5 x 3.4 inches |
What Buyers Say
Many users highlight the unit's quiet operation, noting that the 120mm fan keeps noise levels down, even if it becomes noticeable under heavy loads. The inclusion of a native 12VHPWR connector for PCIe 5.0 GPUs is a frequently mentioned benefit, making it suitable for newer builds. However, the non-modular cable design is a recurring point of frustration, with builders finding it difficult to manage excess cables. There are also concerning reports of units failing prematurely, sometimes within a few months of use, which contradicts the expected longevity.
“Ugh, the cables are a nightmare, but it powers my 4070 Ti just fine, even if I had to shove all the extra wires into a corner. Hope it lasts longer than some of these other reviews say!”
Common Praise
- The 120mm Fluid Dynamic Bearing fan maintains low noise levels during typical use.
- Includes a native 16-pin 12VHPWR connector for current-generation graphics cards.
- The power supply is fully compatible with Intel ATX 3.0 specifications.
- Provides stable power delivery under stress tests, with consistent voltage readouts.
- The all-black, sleeved cables contribute to a cleaner aesthetic inside the PC case.
Common Complaints
- The non-modular cable design creates excess cables that are difficult to hide.
- Some units have failed after only a few months of operation, requiring warranty claims.
- The 12VHPWR connector's 450W limit might not be enough for all high-power PCIe 5.0 GPUs.
- The fan can get loud, peaking at 60.6 dB, when the system is under a full load.
- Concerns about thermal stress under high ambient temperatures, potentially affecting long-term performance.
Ownership Tips
- Managing the non-modular cables requires significant effort and creative routing, especially in smaller cases.
- The fan noise, while generally low, becomes distinctly audible during intense gaming sessions or benchmarks.
- The 450W limit on the 12VHPWR connector means you need to double-check your GPU's specific power requirements to avoid issues.
- Some users report the unit running hotter than expected in less-than-ideal airflow conditions.
- The included cables are sufficient in length for most medium-sized cases, but can be tight in larger full-towers.
Frequently Asked Questions
Is this power supply fully modular?
No, the Thermaltake Toughpower GX3 850W is a non-modular power supply, meaning all cables are permanently attached and cannot be removed.
What is the wattage output of the 12VHPWR connector?
The native 16-pin 12VHPWR PCIe connector on this 850W unit can deliver up to 450W for PCIe 5.0 graphics cards.
Is this PSU compatible with new graphics cards?
Yes, it is fully compatible with Intel ATX 3.0 standards and features a PCIe Gen 5.0 12VHPWR connector, making it ready for next-generation GPUs.
How quiet is the fan?
It uses a 120mm Fluid Dynamic Bearing fan, which is designed for quiet operation, but it can become audible, peaking around 60.6 dB, under full system load.
What kind of warranty does it have?
The Thermaltake Toughpower GX3 850W comes with a 5-year warranty.
Buying Guide
When you're looking at a power supply, you're basically picking the heart of your PC. It takes the wall power and converts it into usable electricity for all your components. You need to make sure it has enough wattage for everything you're plugging in, especially your graphics card and CPU. Also, consider how you want to manage your cables; non-modular means all cables are attached, which can be messy, while modular lets you only plug in what you need.
Wattage
This is the total power your PSU can deliver. Think of it like the horsepower of a car; if your car needs 300 HP to run, a 200 HP engine won't cut it. Your PC components, especially the GPU, have specific power demands, and your PSU needs to meet or exceed that total.
80 PLUS Certification (e.g., Gold)
This rating tells you how efficiently the power supply converts AC power from your wall into DC power for your PC. A higher rating like Gold means less energy is wasted as heat, which can save you a tiny bit on your electricity bill and keep your system cooler. It's like getting better gas mileage for your computer.
ATX 3.0 & PCIe 5.0 Ready
These are newer standards designed for the latest PC hardware, especially powerful graphics cards. ATX 3.0 allows for better handling of power spikes, and PCIe 5.0 readiness often means it includes the new 12VHPWR connector, which is a single cable for high-power GPUs. If you're buying new components, you want this for compatibility and stability.
Non-Modular vs. Modular
This refers to the cables. Non-modular PSUs have all cables permanently attached, even ones you don't use, which can make your PC case look like a spaghetti factory. Modular PSUs let you detach unused cables, making for a much cleaner build and better airflow. It's about how much control you want over your cable mess.
Alternatives
If this unit doesn't fit, look for fully modular 850W ATX 3.0 power supplies with a 12VHPWR connector rated for 600W, or consider units with a longer warranty period if reliability is a primary concern.



