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In search of the right PSU for your RTX 3080 GPU? You must consider several factors, such as power output, efficiency rating, aesthetics, special features, cooling, and, importantly, compatibility.
An incompatible PSU can damage hardware, cause system instability, and reduce PC performance. To avoid that, you need to pick a reliable power supply. But then, there are many options, and deciding on one can be challenging.
To help you out, I got myself 12 different PSUs that work with RTX 3080 and tested them in a variety of environments (gaming, streaming, video editing, animation, etc.) After four weeks of continuous testing, I’ve shortlisted the seven best performers.
Contents
- RTX 3080 PSU Requirements
- 7 Best PSUs for RTX 3080 in 2023
- Frequently Asked Questions
- Verdict
RTX 3080 PSU Requirements
Trait | Ideal Range or Value |
---|---|
Wattage (Total Continuous Power) | 750W - 1000W+* |
Efficiency Rating | 80 PLUS Gold or higher |
Form Factor | ATX |
Modular Design | Fully or Semi-Modular |
Fan Size | 120mm - 140mm |
Fan Type (Bearing) | Fluid Dynamic or Rifle Bearing |
Noise Level | Under 30 dB (at typical load) |
+12V Rail(s) | Single or Multi-rail** |
PCIe Power Connectors (6+2 pin) | 2 or more |
MTBF (Mean Time Between Failures) | 100,000 hours or more |
Protections | OVP, UVP, OPP, SCP, OCP, OTP |
Warranty | 5 years or more |
Note: Even though NVIDIA recommends a minimum wattage of 750W for RTX 3080, it is better to get a bigger one, taking care of overclocking.
7 Best PSUs for RTX 3080 in 2023
It is now time to move to the individual reviews. Just so you know, each model picked here caters to different needs and preferences. So let us dive right in and take a closer and more detailed look at the winners:
1. Best Overall: ASUS ROG Strix 1000W Gold
- ROG heatsinks cover critical components. Lower temps result in a longer lifespan and reduced noise
- Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure
- Dual ball fan bearings can last up to twice as long as sleeve bearing designs
- 0dB Technology lets you enjoy light gaming in relative silence
- An 80 Plus Gold Certification is the result of Japanese capacitors and other premium components
ASUS ROG Strix 1000W is arguably the best RTX 3080 power supply that money can buy. The exemplary efficiency rating and ample wattage take it to the top.
I even compared it with the Corsaor RM1000x but the ASUS ROG Strix 1000W came ahead courtesy of the innovative axial-tech layout for the built-in fan, resulting in better cooling.
Hardware Performance
Leading the hardware performance is the 0DB working mode for handling games better. Yet, under typical load, you can expect the noise level to be under 30 dB, making it one of the more silent power supplies on the list.
As for power and efficiency, the PSU offers 1000W worth of capacity, with the 80+ gold rating helping convert close to 92% of the power into a usable form. The best part, however, is the 135m axial-tech PSU fan built using “dual-ball” bearings.
This feature also adds to the silent cooling functionality. The ATX form factor ensures that the ASUS 1000W PSU is compatible with most PC cases, and the availability of four PCIe 6+2 Pin connectors means that you can use the same for multi-GPU configuration.
The single +12V rail layout ensures that the power delivery is stable. As for the additional support areas, this power supply unit boasts protection against over-power, under-voltage, over-voltage, over-current, short-circuit, and other similar issues.
Design & Warranty
The ASUS 1000W features a black steel-clad housing that is sleek and boasts seamless cable management support. There are heat-dissipating vents in the rear, followed by the honeycomb grille at the front for optimal cooling and airflow.
It is a fully modular PSU, meaning you can unplug each cable piece by piece for the best aesthetics. Also, the rear panel houses the PCIe connectors that I discussed earlier.
As far as the weight is concerned, this device weighs close to 4.5 pounds — making it easy enough to accommodate almost anywhere. Also, this sturdy PSU comes with a 10-year limited warranty, which covers most manufacturing issues.
Conclusion
If you are a high-level content creator or a professional gamer, ASUS ROG Strix 1000W is the perfect power supply for 3080. And even though 1000W might feel overkill to some, this PSU actually helps you with the multi-GPU rig setup.
While it excels in every aspect, it is the high-end cooling support and extensive PC protection support that make it a stand-out performer.
Pros
- Quiet cooling
- Comprehensive PC protection support
- High-end efficiency rating
- 1000W capacity for multi-GPU support
Cons
- It might be overkill for gamers who aren’t professional
- Pricey
2. Best Runner-Up: EVGA SuperNova 1000 G5
- 80 plus Gold certified, with 91% efficiency or higher under typical loads
- Fully modular to reduce clutter and improve airflow. AC Input - 100 - 240 VAC, 15-8A, 50/60 Hz
- 100% Japanese capacitors, active clamp DC to -DC converter design to improve 3.3V./ 5V. Stability
- Fluid Dynamic Bearing fan and EVGA eco mode for ultra-quiet operation and increased lifespan
- 10 year limited Warranty and unparalleled EVGA Customer Support
EVGA SuperNova 1000 G5 takes the much-deserved runner-up position on this list, boasting the gaming-focused Eco mode that can eliminate any kind of PSU-specific noise almost completely.
Also, when compared to the old G3 variant, the G5 is inches ahead, courtesy of a better design and improved cooling performance.
Hardware Performance
Feature-wise, the EVGA SuperNova 1000 G5 is as loaded as a PSU can get. For starters, the 1000W power capacity and an 80+ Gold efficiency rating do make it a great PSU needed for 3080.
You can expect almost 91% efficiency with the AC power plugged into this rockstar. There are top-of-the-line Japanese capacitors in play that make it one of the more reliable and stable power supply units around.
The fan setup is worth the splurge. There is a 135mm FDB fan that supports silent cooling, helping you keep the noise levels under 30db under low to medium load.
I would also recommend you turn on the Eco mode for the PSU fan, as it would then turn on your fan only if it is absolutely necessary. That way, for more basic gaming and tasks, you wouldn’t have to deal with any kind of noise whatsoever.
There are four 6+2 PCIe connectors in play for setting a multi-GPU rig. Plus, the EVGA SuperNova G5 comes built-in with features like over-current, over-temperature, and other forms of protection, with a focus on rough handling and extended usage.
Design & Warranty
The compact design bolstered by the rectangular, metal-clad chassis is both durable and minimal. Despite the standard ATX form factor, you can expect the SuperNova 1000 G5 to work with a wide range of cases.
Also, this is a fully modular piece, making it easier to plug and play cables. Another interesting aspect of using this PSU is the front-facing grille for better airflow, followed by the rear-facing connectors, including the motherboard-specific 24-pin connector.
Also, this close-to-7-pound PSU comes with a 10-year limited warranty, which is pretty good considering some of the immediate competitors only offer 5.
Conclusion
If you seek something cheaper than the Asus ROG but with something like an Eco mode to auto-control the fan, the SuperNova G5 is an excellent PSU for 3080.
And while it makes sense for gamers, it also offers ample headroom for your overclocking needs, which might go further than just gaming. Overall, if you prioritize performance and longevity, this is the right power supply unit to own.
Pros
- Massive power output
- Top-notch efficiency rating
- Eco mode for better fan control
- Ample connectors to set up a multi-GPU rig
Cons
- Not the best aesthetics around
- Overkill for a single RTX 3080 setup
3. Best Voltage Regulation: Corsair RM1000x
- Fully Modular: Only connect the cables your system needs, making clean and tidy builds easier.
- 135mm Magnetic Levitation Fan: Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability.
- EPS12V Connector: For wide compatibility with modern graphics cards and motherboards.
- 100% All Japanese 105°C Capacitors: Premium internal components ensure unwavering power delivery and long-term reliability.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
If you are in the market for a PSU that offers the best voltage regulation for under $200, the Corsair RM1000x seems like a legit option.
Compared to the older RM1000, this variant boasts lower ripple and also quieter operation for the gamer within. Also, a lower ripple in the case of RTX 3080 means better overclocking potential and minimal EMI or interference.
Hardware Performance
The 1000W power capacity might be a tad too much for 3080, but with four PCIe connectors in play, it might just make sense if you plan on upgrading the PC configuration to a multi-GPU setup.
Efficiency-wise, the 80+ Gold rating and the almost 92% power conversion seem more than adequate. Next in line, we have the 135mm Magnetic Levitation fan, boasting an improved lifespan and almost zero noise, all thanks to the built-in Zero RPM mode.
Simply put, if you want a PSU that hardly makes any noise, the Corsair RM1000x fits just right. Then, there are durable Japanese capacitors in play, primarily responsible for the steadiest possible voltage output.
On top of that, the Corsair RM1000x comes equipped with several protection features like OVP, UVP, and whatnot.
Design & Warranty
Design-wise, the RM1000x is like any other 3080 recommended PSU on the list featuring a metal housing and a fully modular ATX form factor.
There are heat-dissipation vents to optimize airflow, followed by the rear-facing modular connector. However, when it comes to heft, this PSU is a tad lighter compared to the ones of ASUS and EVGA at close to 4.30 pounds.
This PSU also offers 10 years’ worth of limited warranty and even functions like a standard PSU featuring a basic sleep mode.
Conclusion
The RM1000x is compatible with most motherboards and GPUs. And while most traits are pretty basic, it is the steady voltage regulation followed by the lowest possible ripple to maximize overclocking that makes the Corsair RM1000x one of the best PSUs for gamers and 3D professionals (content creators).
And yes, the ML-bearing fan deserves a special mention, as it makes the PSU virtually noiseless.
Pros
- Excellent capacity
- Modular design supports efficient cable management
- 80+ Gold efficiency is good enough for RTX 3080
- Zero RPM fan mode
- 135mm ML fan that lasts longer
Cons
- It might be overkill for RTX 3080
- Basic design
4. Best SFX Power Supply: Cooler Master V850
- SFX Form Factor: High-quality PSU that's compatible with all SFX cases and suitable for mini-ITX system builds.
- SFX-to-ATX Bracket: With the included bracket, users can install the V SFX Gold securely to an ATX case.
- 16 AWG PCI-e Cables: The thicker 16 AWG PCI-e cables allow for higher currents, thereby improving both efficiency and safety.
- Full-Modular Cabling: Modular cables reduce clutter, increase airflow, and improve overall efficiency and thermal performance.
Rarely does a PSU as powerful as the Cooler Master V850 come along that is specifically meant for the SFF cases but doesn’t cut corners when power capacity is concerned.
I tested the same with the equally smaller LIAN LI SP 750, but the Cooler Master V850 SFX Gold boasts better voltage regulation and a much quieter fan.
Hardware Performance
The 850W power capacity works just fine for the 3080 GPU. Adding to this is the 80+ Gold rating that promises almost 92% efficiency when it comes to power conversion.
Next in line is the 92mm fan boasting fluid dynamic bearing technology. This fan lasts longer and hardly makes any noise whatsoever. Another impactful feature has to be a semi-passive operating mode for the fan, allowing you to stop the RPM under low load conditions.
Plus, the fan brings the loop dynamic bearing technology into the mix — with a focus on being dust-proof and durable.
The rear panel comes equipped with 4 PCIe AWG cables, allowing you to set up a multi-GPU rig even without worrying about the size of the case. And finally, there is the +12v rail layout, allowing to experience steady power delivery.
Design & Warranty
The Cooler Master V850 SFX Gold features an SFX form factor led by a metal-clad layout, modular connectors for the best possible aesthetics and optimized airflow, and a front-facing grille for keeping the PSU at its airiest best.
Also, there is an SFX-ATX bracket in play to help you use the same for ATX cases if needed. As far as the weight is concerned, the Cooler Master V850 SFX Gold carries a heft of 3.97 pounds.
Also, there is a 10-year of warranty, making it a great pick for professional users.
Conclusion
Overall, Cooler Master V850 is one of the finest PSUs to pair with RTX 3080, especially if you are interested in something smaller than a regular ATX device.
And while the fan itself is at par with some of the most advanced units around, it is the price that stands it apart. I would recommend this for content creators who prefer handy and compact setups.
Pros
- Compact form factor
- Dustproof fan design
- Modular layout
- Excellent power output
- Competitive Pricing
Cons
- Not exactly perfect for large cases
- It might be a tad underwhelming for powerful gaming rigs
5. Best Value for Money: NZXT C850
- MORE EFFICIENT: At 50% load and high-line input voltage, power conversion efficiency reaches 2% higher than 80plus Gold Standard.
- FULLY MODULAR: Use only the cables you need to keep your system clean and organized. Black sleeved cable and a matte black finish seamlessly fit any PC style.
- COMPATIBLE AND HIGHLY-TESTED: C series is built and tested with strict standards for trouble-free installation. It fits most ATX case and supports the latest NVIDIA and AMD GPUs up to 30 series and AMD 6000 Series.
- MORE PRECISE AND ERROR-FREE: Micro controller (MCU) enabled protection mechanism monitors current and voltage and output wattage.
- OPTIMIZED AND SILENT: Gold PSU includes low thermal dissipation optimization with upgraded components and optimized circuit design.
NZXT C850 is the newest PSU on the list, boasting a power capacity of 850W — good enough for most high-end GPUs. However, it is the 80+ Gold efficiency rating that puts it on the list, allowing you to achieve higher efficiency than usual at 50% load.
This efficiency bump is of the traits that set it apart from the likes of Corsair RM850x, another 850W PSU.
Hardware Performance
The NZXT C850 features a 135mm PWM (Pulse Width Modulation) fan that can offer you better control over the PSU fan speeds. The temperature control is excellent, plus you can expect the PC to be on the quieter side when in use.
In addition to the fan, the PSU even brings in powerful coils, capacitors, and transformers to lower the EMI and noise and increase stability in the process.
Also, the NZXT C850 PSU has to be one of the more error-free units around, boasting a handful of dependable microcontroller-powered voltage and current protection features. And in any load, the heat dissipation is excellent.
Design & Warranty
The NZXT C850 PSU feels like a rectangular slab of metal. The understated design is complemented by the heft of almost 4 pounds.
Also, the fully modular design ensures that it can work its way into any PC case, regardless of the size. The ATX form factor is pretty standard, and so are the rear-facing vents and PCIe connectors.
Conclusion
NZXT C850 PSU is one of the more robust units around for under $140. It specifically makes sense to mid-level gamers and content creators who are only interested in using the PC under medium load.
As for the traits that separate it from the rest, the fan quality is something that doesn’t come easy for the featured price point.
Pros
- Excellent power capacity
- Amplified efficiency rating at 50% load
- The fans are virtually silent
- Built-in voltage protection features
- Easy to install
Cons
- Boring design
6. Best with ARGB Lighting: Gamemax 850W
- 80 Plus Gold Certified: 850W power supply delivers 90% or higher efficiency under typical loads. Achieve power savings and reduced heat, ensuring peak performance while cutting costs.
- ATX 3.0 & PCIe 5.0 Ready: It allows a remarkable 200% total power excursion and 300% GPU power excursion, ensuring full compatibility with high-performance NVIDIA 40 series graphics cards. The package includes a 12VHPWR Cable for hassle-free installation and future upgrades.
- 100% Japanese Capacitors: Crafted with premium Japanese capacitors for long-lasting reliability and stable output with 5V/3.3V DC-DC. Offering peace of mind with a 5-year warranty.
- ARGB SYNC: Elevate your rig's style with ARGB SYNC, seamlessly integrating vibrant lighting effects with the A-RGB software of most mainstream motherboards.
- Whisper-Quiet Fan: The ATX power supply is equipped with a 140mm ultra-quiet fan that maintains excellent heat dissipation without producing disturbing noise.
If you want to spice up your gaming space with an RGB lighting-based PSU, the affordable Gamemax 850W is the perfect option to pick.
It comes with a fully modular layout and stands out from the rest of the mentions, especially the Corsair RM850x, courtesy of the addressable RGB support.
Hardware Performance
At 850W, the power capacity is more than enough for the likes of RTX 3080. Plus, the 80+ Gold standard rating ensures that most of the input power is converted into a usable format.
Next, there is the semi-passive PSU cooling support — powered by the 140mm fan with hydraulic bearing tech built-in. This means that under low loads, you would hardly experience any noise whatsoever.
The 9-blade fan design adds to the improved airflow — a feature powerful enough to keep the PSU and the PC cooler than usual. But that’s not why I like the Gamemax 850W this much.
The PSU boasts something called active power factor correction support that enhances the power efficiency beyond the stipulated levels by lowering harmonic distortion.
Design & Warranty
The metal-clad chassis is more of a PSU commonplace. However, the Gamemax 850W stands apart for the ARGB lighting design and the rear-facing PCIe connectors. Also, the fully modular design allows you to go aesthetic with the in-case design.
When active, there are 25 smart lighting modes associated with this PSU’s RGB setup. There is a dedicated switch on the PSU to control the lighting. However, for that to work, you need to use the same with a compatible motherboard.
As far as the warranty coverage is concerned, the Gamemax 850W is one of the few products to cover you for five years.
Conclusion
If you are a mid-level gamer who believes in performance, aesthetics, and oomph, the Gamemax 850W is the perfect pick for around $100. And it is the ARGB functionality that puts it on the list, apart from the affordable price.
Pros
- 140mm hydraulic fan that is virtually noiseless
- 80+ Gold efficiency rating
- Massive power capacity
- ARGB support with motherboard sync
- Active PFC tech for improved efficiency
Cons
- On the heavier side
7. Cheap Yet Good: ApexGaming AG-850M
- 80PLUS Gold Certified
- 850 Watt Fully Modular Power Supply
- Fully Modular Flat Cable Design
- LLC Resonant Converter And DC-DC Circuitry
- High Quality 105℃ Japanese Primary Capacitor Inside
If you need a cheap yet reliable PSU that works with RTX 3080 graphics card, and that too with a focus on stable voltage and high-end PC protection traits, the ApexGaming AG-850M is certainly worth considering.
And if you have previously used something like the Gamemax RGB-850 Pro, the ApexGaming AG-850M comes out on top due to its cost-effectiveness.
Hardware Performance
There is a 135mm FDB fan in play, meant for efficient and noise-free cooling. You can operate the same in a semi-passive mode to keep a tab on the rotations under low-load conditions.
Other impactful traits of the 850W power capacity followed by an efficiency rating that states 80+ Gold.
While these features are notable enough, the detailed protection suite involving OVP, OPP, SCP, and more stands out, making the AG-850M one of the more resilient PSUs around. It also means that this PSU is known for its steady voltage stability.
Design & Warranty
The metal housing and the fully modular design stand out. As far as the structure is concerned, the front panel features a honeycomb grille for optimizing the airflow, whereas the rear panel features PCIe connectors for connecting basic GPUs and storage devices to prepare a more comprehensive gaming rig.
Warranty-wise, ApexGaming offers five years’ worth of coverage.
Conclusion
If you plan on using your gaming PC in areas where power outages are common, the ApexGaming AG-850M is the perfect PSU to get. And it is the highly affordable price point that makes it worthy of a position on the list.
Pros
- An exhaustive PC protection features
- The design is fully modular and allows for the best possible in-case aesthetics
- Semi-passive FDB fan for noise-free cooling
- 80+ Gold efficiency rating for maximizing power usage
Cons
- No RGB lighting
- On the heavier side
And that sums up our individual PSU reviews.
Frequently Asked Questions
NVIDIA recommends a 750W PSU for the RTX 3080 GPU. However, you can choose from a wide range of options to make room for other specs related to efficiency, modularity, and more.
No, an 850W processor is hardly too much for 3080. And even though you only need 750W, having 100W extra offers some overclocking headroom to operate the GPU to its fullest capabilities.
No, most RTX 3080 GPUs, regardless of the variant, can work really fine with two 8-pin connectors. However, there are some custom-made variants with massive overclocking support that might still need three 8-pin connectors, something a PSU with support for four 6 + 2 PCIe connectors can help with.
Yes, you can simply use a 750W PSU for this graphics card. But if you only go by the minimum number, you might not be able to use the PSU with other high-end PC components or for overclocking.
Verdict
Each of the PSUs that I reviewed is compatible with the RTX 3080 GPU. However, if you are still unsure and want me to jog your memory, here is a quick refresher on the PSU picks:
- If you want to get the best of everything — fan quality, overclocking capacity, and support for PC upgrades, the Asus ROG Strix 1000W is the best bet.
- If you want a PSU with ARGB support without breaking the bank, the Gamemax 850W RGB is the perfect fit.
- Finally, if you want a PSU under $100 but with the best-in-class 80+ Gold efficiency rating in play, the ApexGaming AG-850M is the real deal.
But these are just my personal favorites. You can always read through each of the PSU reviews mentioned above and pick one per your needs and preferences.
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