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Best PSU for 4090 NVIDIA GeForce RTX - Top 9 Efficient Units
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Published onAugust 21, 2024
published onAugust 21, 2024
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If you’re looking for the best PSU for the 4090 series of NVIDIA GeForce RTX, keep reading!
Choosing the right power supply unit for your PC is important if you’re adding anNVIDIA GPU. You should keep in mind the actual wattage load the PSU might need to deliver.
After analyzing over 80 reliable options on Amazon, I’ve narrowed down the best choices for a gaming PC equipped with an NVIDIA GeForce RTX 4090 and an Intel Core i9 14900T processor. These nine units stand out as the top performers based on their power requirements and overall quality.
9 Best PSUs for 4090 NVIDIA GeForce RTX
Let’s explore these power supply units suitable for a high-performance gaming PC:
Corsair RM1000e
The Corsair RM1000e PSU is quiet, reliable, and energy-efficient. It has80 PLUS Goldefficiency, which means it wastes less power. It also supportsATX 3.0andPCIe 5.0, so it can power the latest and greatest PC hardware. Furthermore, the cables are fully modular, so you can only connect the ones you need.
The power supply unit comes with a7-year warranty, so you can be sure it’ll last. Moreover, it’s compatible with theModern Standbysleep mode technology, so you can wake up your computer faster and save energy. Finally, it weighs awhopping 3.7 pounds, which is important for PSU units. The weight indicates that the manufacturer has used sufficient copper coils and heat sink materials to make it safer and more durable.
GetCorsair RM1000eon Amazon!
EVGA 1000 GT
The EVGA 1000 GT Supernova is the best PSU for the 4090 series NVIDIA GPU when it comes to durability and low-noise operation. It includes smarter power management technologies and safeguards, likeover-voltage protection (OVP),over-current protection (OCP),over-power protection (OPP),short circuit protection (SCP), andunder-voltage protection (UVP). Hence, the manufacturer offersup to 10 years of limited warranty.
Also, it comes withtwo PCBs, namely theprimary and secondary circuit boardsfor efficient heat distribution and redundancy. Both contain state-of-the-artover-temperature protection (OTP)systems to safeguard the computer chassis from burning hazards.
The80 PLUS Goldcertification ensures that the PSU delivers a higher wattage when the PC’s demand increases and a lower wattage when the system is on standby or running lightweight apps. Thanks to thefluid dynamic bearing (FDB)fan, it always operates on virtually zero noise.
GetEVGA 1000 GTon Amazon!
MSI MPG A1000G
MSI MPG A1000G is aPCIe 4.0 and 5.0compliant power supply that can deliver up to600 wattsjust for the graphics card. On the other hand, the NVIDIA GeForce RTX 4090 GPU is based on PCIe 4.0 standard and requires450 wattsof maximum power. Thus, you can use the same PSU for newer GPUs that’ll be marketed for the PCIe 5.0 configuration.
Furthermore, it hasJapanese 105°C capacitorsfor operation in high-temperature environments. They’re used for energy storage, filtering, and buffering throughout the power supply PCB for increased durability.
MSI MPG A1000G has beentested for power excursionof up to three times the rated power for GPU andtwo timesthe rated power for the whole system. Heavy transformers, Japanese 105°C capacitors, high-quality MOSFETs, etc., contribute to this functionality.
GetMSI MPG A1000Gon Amazon!
ASUS ROG Strix 1000W
ASUS ROG Strix 1000W is a designer PSU with novel qualities. If you’re building an all-white PC for a unique look, you should go for this power supply unit. Its branding, texture, and decals match the ASUS ROG Strix series of white motherboards.
Secondly, the whole aluminum casing works like a massive heat sink. The internal power transformer has been smartly coupled with the metallic casing so the generated heat can easily transfer to the PSU body. Also, there is anaxial-tech fanwith longer blades and a smaller hub with a three-sided mesh cover for further heat dissipation in lower RPMs.
ASUS ROG Strix 1000W has two specialized certifications:80 PLUS GoldandCybenetics Lambda A+. These confirm that the PSU will deliver the required wattage in the most power-efficient way with the least amount of noise.
Moreover, it comes with a10-year warrantyservice promise along withPCIe Gen 5.0standard. Thus, you can use the same unit for multiple generations of NVIDIA GPUs.
GetASUS ROG Strix 1000Won Amazon!
Thermaltake Toughpower GF3 1000W
Thermaltake Toughpower GF3 1000W is the best affordable PSU for 4090. It offerslow profile cable managementeven if you use both GPU power output ports for NVIDIA SLI orAMD Crossfiretechnology.
Also, the PSU isATX 3.0andPCIe 5.0compliant so you can fit it in most modern PCs. Furthermore, you no longer need to replace it after a few years when NVIDIA launches a better GPU in the PCIe 5.0 configuration.
Another cool feature is the option to switch off the fan until the unit reaches30% power output load. There’s a physical button at the back labeled asSmart Zero Fan.
It also comes with80 PLUS Gold certificationfor super-efficient power supply andJapanese 105°C capacitorsfor durable performance in high-temperature environments. Like other leading PSUs, it offers awarranty service period of up to ten years.
GetThermaltake Toughpower GF3 1000Won Amazon!
CORSAIR RM850x
CORSAIR RM850x is an80 PLUS Gold certifiedPSU for a power output of up to850 watts. This is enough to run a gaming PC at its full potential with the NVIDIA GeForce RTX 4090 GPU and a decent Intel or AMD CPU. Therefore, you can save up to $50 by getting this affordable class PSU instead of a1,000-watt unit.
The overall power supply weight isaround 3.75 pounds. This means you’re only getting heavy and durable components, especially copper-winded transformers, solid capacitors, heavy heatsinks, etc.
Other specialties includeJapanese 105°C capacitors,extremely fast wake-from-sleep times, andgreater low-load efficiencymaking it a reliable PSU.
GetCORSAIR RM850xon Amazon!
Thermaltake GF1
If you’re looking for the best PSU for 4090 in the850-watt range, you can also check out Thermaltake GF1. It saves energy by complying with theIntel C6/C7 states. When compatible CPUs enter the idle mode, it reduces the output wattage. However, when there’s a spike in CPU requirement, the PSU reacts to that quickly to deliver enough power. Thus, you’ll experience less latency during the CPU performance transition phase.
The manufacturer has coupled the internal PCBs and the outer metal body with acopper platefor enhanced heat dissipation.Therefore, the cooling fan often won’t rotate until the PSU goes beyond30% load. Also, there’s a dedicatedSmart Zeroswitch to enable and disable this feature.
Thermaltake GF1 has a fully modular cable connection system. None of the cables are fixed to the unit. For example, if you only need the mainboard, CPU, and GPU power connectors, you can connect those and ignoreSATA power cables. The PC chassis will then have more free space for efficient air circulation.
GetThermaltake GF1on Amazon!
MSI MAG A850GL
MSI MAG A850GL is a compactATX 3.0-compliantpower supply offering high energy efficiency for low to higher wattage requirements. It has been tested with the80 PLUS Goldstandard for excellent energy efficiency for20%-100% load. Also, it has aCybenetics Platinum certificationproviding economical energy output in the10%-115% range.
It’s also power excursion friendly. The2X Total Power Excursionand3X GPU Excursionstep in to keep the PC powered for a few minutes, enough to continue your gaming without experiencing unexpected system shutdown.
Finally, a novel and helpful feature of this PSU isdual-color 16-pin cables. It has yellow colored-plastic sockets as connectors.
GetMSI MAG A850GLon Amazon!
Cooler Master MWE
Cooler Master MWE is the best PSU for 4090 RTX GPU featuring future-proof technologies, liketwo EPS connectors,semi-fanless operation,low RPM operations, and more. This unit is suitable for multi-CPU motherboards as well as single-CPU mainboards that use two EPS connectors for overclocking and efficient power distribution. So, if you’re planning forCPU and GPU overclocking,you should check it out.
It also includes components like Japanese capacitors, hydro-dynamic fans, etc., to make the overall PSU temperature resilient. According to the manufacturer, it’ll work seamlessly even at asteep temperature of 50°C. Moreover, the manufacturer is offeringfive years of limited warranty.
GetCooler Master MWEon Amazon!
How I Chose the Best PSU for 4090
Here are the factors I considered while listing the most robust power supply units for NVIDIA GeForce RTX 4090 GPU:
Summary
This is a no-brainer list if you’re looking for the best PSU for 4090 NVIDIA RTX GPU. Depending on your PC’s overall wattage requirement, you can choose between a1,000-wattor850-watt power supply. However, a1,000-wattproduct will help you future-proof your PC.
You can also go through thebest PSU test softwareandhow to check PSU wattage without opening the caseto better manage your power requirements.
Which PSU would you choose for your NVIDIA GeForce RTX 4090 graphics card? Let me know by commenting below.
More about the topics:GPU,PC performance
Vlad Turiceanu
Windows Editor
Passionate about technology,Windows, and everything that has a power button, he spent most of his time developing new skills and learning more about the tech world.
Coming from a solid background in PC building and software development, with a complete expertise in touch-based devices, he is constantly keeping an eye out for the latest and greatest!
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Vlad Turiceanu
Windows Editor
Coming from a solid background in PC building and software development, he’s a Windows 11 Privacy & Security expert.
