What PSU you should pair with RTX 4090 GPU?
The Nvidia RTX 4090 has a power draw of 450W to 500W, so Nvidia recommends a minimum of an 850W power supply for the RTX 4090. This will give you enough headroom to handle power spikes and ensure that your system is stable.
Also, the PSU you need for the RTX 4090 depends on several factors, such as the power consumption of your other components, the efficiency and quality of your PSU, and whether you plan to overclock your CPU or GPU.
Some of its partner cards may have higher or lower requirements. For example, Asus recommends a 1000 watt PSU for its ROG Strix model, while Palit recommends a whopping 1200 watt PSU for its GameRock model.
It is also important to make sure that your PSU is ATX 12V 3.0 compliant. This is the latest version of the ATX power supply standard and it includes some features that are important for the RTX 4090, such as support for higher power draw and better efficiency.
A 750W PSU may not be enough for the RTX 4090, depending on your system configuration and usage. You plan to use the RTX 4090 for demanding tasks like 4K gaming or video editing.
As I mentioned before, the RTX 4090 can consume up to 500 watts or more when gaming or running stress tests, which means it can easily exceed the power limit of a 750W PSU if your other components are also power-hungry.
Our Recommended list of the Best PSU For RTX 4090
- Seasonic Focus GX-850 : Overall Best PSU For RTX 4090
- EVGA Supernova 1200 P2 : Best PSU for 4090 and 13900k
- ASUS ROG STRIX 1000W : Best 1000w PSU For RTX 4090
- EVGA SuperNOVA 850 Ga
- NZXT C850
1- Seasonic Focus GX-850 : Overall Best PSU For RTX 4090
The Seasonic Focus GX-850 is the overall best psu for RTX 4090. It has a modular cable design, which allows you to choose the cables you need and keep the ones you don’t. This power supply also has a zero RPM fan mode, which means that it will stay silent until it’s needed.
It has enough power, efficiency, and reliability to run the RTX 4090 smoothly and stably, and it also has a fan control switch that lets you choose between three modes: fanless, silent, and cooling.
The PSU has a total output of 850 watts, which is more than enough for the RTX 4090, which has a total board power (TBP) of 450 watts.
However, some tests have shown that the RTX 4090 can exceed its TBP and consume up to 500 watts or more when gaming or running stress tests. Therefore, it is important to have a PSU that has some headroom and can handle spikes in power demand. The Seasonic FOCUS GX-850 can do that, as it has a peak output of 1020 watts.
The Seasonic FOCUS GX-850 has an 80 Plus Gold certification, which means it has at least 87% efficiency at 20%, 50%, and 100% load. This helps reduce heat, noise, and power consumption, and also saves money on electricity bills.
The PSU comes with enough PCIe power connectors for the RTX 4090, which typically requires three 8-pin connectors.
The Seasonic FOCUS GX-850 has a compact size of 140 mm x 150 mm x 86 mm, which makes it compatible with most cases, even small form factor ones. It also has a sleek black design that matches any build.
2- EVGA Supernova 1200 P2 : Best PSU for 4090 and 13900k
The EVGA Supernova 1200 P2 is a high-quality power supply that is perfect for those with for 4090 and 13900k. It has plenty of power to run even the most demanding games and applications, and it does so quietly and efficiently. The Supernova 1200 P2 is also very reliable, meaning you can count on it to deliver power when you need it most.
It has a total output of 1200 watts, which is more than enough for the RTX 4090, which has a total board power (TBP) of 450 watts. However, some tests have shown that the RTX 4090 can exceed its TBP and consume up to 500 watts or more when gaming or running stress tests.
Therefore, it is important to have a PSU that has some headroom and can handle spikes in power demand. The EVGA Supernova 1200 P2 can do that, as it has a peak output of 1440 watts.
The EVGA Supernova 1200 P2 is also very efficient, as it has an 80 Plus Platinum certification, which means it has at least 89% efficiency at 20%, 50%, and 100% load. This helps reduce heat, noise, and power consumption, and also saves money on electricity bills. The PSU also has a fan control switch that allows you to choose between three modes: eco, normal, and max.
The EVGA Supernova 1200 P2 is a highly rated power supply that delivers stable and clean power to the RTX 4090 and other components. It has a low noise level and a long lifespan. It is a perfect choice for your high-end gaming or professional PC build.
3. ASUS ROG STRIX 1000W : Best 1000W PSU For RTX 4090
The ASUS ROG STRIX 1000W is an excellent option for the Best 1000W PSU for RTX 4090. The ASUS ROG Strix 1000W Gold PSU stands as the flagship power supply in the ROG Strix lineup. Boasting a substantial 1000-watt maximum power output and an 80% efficiency rating, this model ensures top-tier performance.
Its fully modular design aids in maintaining an organized rig. The axial-tech fan, characterized by an innovative smaller hub and elongated blades, enhances airflow and downward air pressure. The incorporation of 0dB technology virtually eliminates noise, optimizing gaming experiences. The accompanying 10-year warranty adds to the appeal, emphasizing its lasting value.
It’s been proven that keeping things cool can make them last longer and be quieter. The ROG Heatsinks in this PSU help keep the important parts cool, so your PC stays running well.The fans in the PSU are different from others because they have two balls in them.
This helps them move more air and last longer. Also, they’re really quiet, which is great when you’re playing games. The PSU is certified as being really efficient, and that’s because it uses good-quality parts that also make it quiet, even when you’re playing demanding games.
If you want a PSU that can handle your gaming needs when paird with RTX 4090 without compromising on performance or quality, the ASUS ROG STRIX 1000W is an excellent choice.
4. EVGA SuperNOVA 850 Ga Power Supply
The EVGA SuperNOVA 850 G3 is an excellent budget-friendly power supply that is perfect for use with RTX 4090 graphics card. The power supply features a single 8-pin PCI-E connector and a single 6-pin PCI-E connector, ensuring that your system will have all the power it needs to run even the most demanding games and applications. The SuperNOVA 850 G3 also features 80 PLUS Gold certification, ensuring that you’ll get the most bang for your buck when it comes to power efficiency.
The EVGA SuperNOVA 850 G2 has set itself apart from the competition by being one of the market’s most silent, efficient, and innovative power supplies. This device features 100% Japanese capacitors, LLC resonant circuit design, and a DC-DC converter design to improve 3.3V and 5V stability for optimal performance.
Furthermore, the modular design reduces clutter and improves airflow for a neater appearance, while the double ball bearing fan and EVGA eco mode improve reliability by ensuring quieter operation. In addition, the power supply comes with an industry-leading ten-year limited warranty and unparalleled customer support from EVGA.This EVGA SuperNovA is compatible with i7-12700k PSU.
The new EVGA Ga line is an amazing upgrade for gamers, and power users’ models range from 750W up to 1000 watts, so there’s one perfect for your needs no matter what you’re doing! We already tested out their flagship model, which performed beautifully – now, let’s see if this middle member can match its performance levels before earning herself a place on our best PSUs article next time around.
5. NZXT C850
The NZXT C850 is a high-quality power supply that is perfect for users who require extra power for their RTX 4090. This unit provides 850 watts of continuous power, making it a great choice for gamers and power users alike. The C850 also features premium components and circuitry, as well as a large number of protections and safeguards to keep your system running smoothly.
The NZXT C850 is a high-end power supply designed for gamers and enthusiasts. This model has Gold Certification from 80 Plus, which is extremely efficient compared to other PSUs on the market. The PSU is also very quiet, thanks to its Zero RPM Fan mode. Finally, the modular design ensures easy installation and less clutter. The sleeved main cables are also a nice touch and resist heat damage and fraying.
The modular design of this product makes it easier to install, and you can use just the cables needed for your installation. This means there’s less clutter between outlets or on top where they might get tangled up with other unused wires. In addition, the sleeved main cables look and work great, delivering greater durability thanks to their tough fabric construction. They also resist heat damage and fraying for a long-lasting result that you can be proud of.
The C850 is a great choice for gamers looking to build powerful rigs. It can support up with an AMD Ryzen 9 3900/3950x or Intel Core i9-10900K and still provide enough juice if you want more performance from your graphics card (e..g., Nvidia RTX2080Ti). As long as they use standard-size cables that are compatible between both parts, this shouldn’t pose any problems when it comes time to modify them.
Guide to Best PSU For RTX 4090 Build
The output wattage is the first thing you notice when shopping for a power supply. You’ll find various sizes and ratings, such as 550W or 750W, depending on your needs–the higher number means more juice! However, make sure to choose wisely because if they’re too low, this could cause problems with components like graphics cards that require high consumption levels (and heat).
You can keep some headroom with a higher power supply than requirements for future upgrading of components. For example, 550W or 750 watts are enough when you want to build an entry-level gaming PC, but if your budget allows it go ahead and get one that supplies up through 850 W because this will allow more flexibility down the line.
Power Supply Design
Power supplies come in three flavors – non-modular, semi-modular, and full. Non Modular PSUs don’t have removable cables; on the other hand, you can take out select connections with a modded power supply for better organization of your wires inside glass cabinets if needed! Semi-Modermalised ones allow removal of specific sections according to the user’s requirements while others remain fixed at their positions. But, of course, that entirely depends on the situation in which it is set up and tested.
When it comes to power supplies, you want something that wastes as little of your hard-earned money on wasted and unnecessary conversions. There are two things in particular about this piece of equipment for gaming PCs that make efficiency important: The first is how efficient each unit renders its output; second, but just as importantly- if not more so! -is what percentage of these PSUs have been certified at achieving standards ranging from 60%-grade down to 20%. You’ll often see gold grades assigned when talking about high.
The 24 PIN cable is the most important connector on your motherboard. If you have an expansion card or two, make sure they are easily connected to this powerful doubled-up port! You also need eight 6-pin GPU cables for graphics processing units (GPUs) and six four-pin CPU sleeves, so RTX 4090 CPUs don’t overheat. At the same time, gaming hardcore at high resolutions – not all motherboards require these extra supplies, but it’s a good idea to get some spares just in case anything goes wrong during installation.