Best PSUs for RTX 5070 and 5070 Ti in 2025 – our top picks
It has been some time since the RTX 5070, and the 5070 Ti hit the shelves, and their reviews are now live. Reception has been mixed, with some praising the performance at 4K (with help of DLSS 4 and MFG), but others quite rightly saying that whether you go for it will depend on if you can grab it at MSRP – incredibly unlikely as things stand considering stock issues have happened yet again.
That being said, if you’re lucky enough to grab one, or you’re getting all your components together for an RTX 5070 build, we’ve got you covered here with everything need to pick the right power supply.
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Now, with the 5070 and 5070 Ti, despite having faster memory and more cores than their predecessors, the TDP hasn't increased much. The RTX 5070 has a 250W TDP, while the RTX 4070 has a 200W TDP. On the other hand, the RTX 5070 Ti has a 300W TDP, while the discontinued RTX 4070 Ti has a 285W TDP.
Between the RTX 5070 and 5070 Ti, there is a 50W difference, and between their respective predecessors, there is a 50 and 15W difference in power draw, respectively. So, realistically, you don't need to swap your PSU if you're upgrading from the previous generation. However, if you're building a new gaming PC, we've got you covered with a couple of PSUs we've reviewed in-house that do deliver the goods when it comes to performance and efficiency.
One important change is that the new RTX 50-series GPUs support an updated version of the 12VHPWR cable, the 12V-2×6 cable, which has 0.1mm shorter sensing pins and a 0.15mm longer conducting terminal to ensure a secure and stable power connection and prevent melting. While ATX 3.0 and PCIe 5.0 PSUs will work just fine; you’ll have to connect an adapter, but to make matters simple, the ATX 3.1 and PCIe 5.1 PSUs come with a 12V-2×6 cable that can deliver 600W easily, so you won’t need additional connections.
To accommodate everyone’s different budgets, we've selected a budget and high-end power supply unit, with the best being a mid-range PSU for both cards. So, here are what we think are the best PSUs for the RTX 5070 and 5070 Ti based on their power requirements from Nvidia.
Products at a glance
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Best PSU for RTX 5070 and RTX 5070 Ti
Corsair RM750x
- Wattage: 750W
- Form Factor: ATX
- Rating: 80 PLUS Gold, Cybenetics Gold
- Design: Fully Modular
-
Best budget PSU for RTX 5070 and 5070 Ti
Corsair CX750
- Wattage: 750W
- Form Factor: ATX
- Rating: 80 Plus Bronze, Cybenetics Silver
- Design: Non-modular
-
Best high-end PSU for RTX 5070 and 5070 Ti
Fractal Design Ion+ 860P
- Wattage: 860W
- Form Factor: ATX (325 x 110 x 210mm)
- Rating: 80+ Platinum, Cybenetics Platinum
- Design: Fully modular
-
Best 850W PSU for RTX 5070 and 5070 Ti
Corsair RM850x Shift White
- Wattage: 850W
- Form Factor: ATX (160mm L)
- Rating: 80+ Gold, Cybenetics Gold
- Design: Fully modular, side connectors
-
Best overkill PSU for RTX 5070 and 5070 Ti
Corsair RM1000X Shift
- Wattage: 1000W
- Form Factor : ATX
- Rating: 80 Plus Gold, Cybenetics Gold
- Design: Fully modular, side connectors
How we picked
We never recommend compromising on a PSU as it is, in a way, the core of your system, responsible for keeping it safe from surges and short circuits while ensuring all the components get the right amount of power, depending on the workload at hand.
So, to choose the PSUs for the RTX 5070 and 5070 Ti, we looked at their efficiency rating, form factor, noise level, modularity, and the performance they showcased during our in-house testing.
We've also explained our testing process for various components in our testing lab, so check it out if you're interested in learning about our process in detail.
Our top picks
- Wattage: 750W
- Form Factor: ATX
- Rating: 80 PLUS Gold, Cybenetics Gold
- Design: Fully Modular
- Long term 10 year warranty
- Excellent build quality and component design
- Very quiet Mag Lev fan
- Not native ATX 3
- Plenty of plastic packaging is still in use
Since the RTX 5070 and 5070 Ti only have a 50W difference, we recommend using the Corsair RM750x for both of them. This is an excellent power supply unit and the only one to get a 5/5 rating from us in our RM750x review.
This power supply unit will match the power requirement for the RTX 5070 Ti and has a 100W higher capacity than what is recommended for the RTX 5070. On top of that, even if you pair these GPUs with the Core Ultra 9 285K, which has a maximum turbo power of 250W, you should still be left with a 200W and 250W overhead, respectively.
This should be more than enough to cater to other components and the overclocking of the CPU and GPU. That being said, this PSU has an 80+ and Cybenetics Gold rating, which, according to Corsair, means it should be 87% and 90% efficient at 100% and 50% load, respectively, as that is what the 80+ rating means.
In general, the Corsair RM750x is an all-around strong choice of power supply. It brings a middle-of-the-pack feature and performance that make it a strong value choice. Especially considering the price and longevity expected from it.
PC Guide
However, Cybernetics ratings dictate that its efficiency should range between 87% to 89%. So, there isn't much of a difference, and either way, these percentages are in the high-end range. This PSU has 105°C Japanese capacitors, which are of premium quality and increase the reliability of this unit.
It features a 135mm maglev fan, which, according to Cybenetic, gives it an A- rating, meaning its noise level is between 25 dB(A) and 30 dB(A). The magnetic levitation functionality should also work to extend the fan’s life as there is minimal wear and tear, and the Zero RPM mode keeps the fan from spinning unless there is a high load.
To test its performance, we mounted the Ryzen 9 7950X and RTX 3090, which have a 170W and 350W TDP, respectively. This totals 520W, and at idle, the PSU was pulling around 127W, but when we ran the Furmark 2 stress test for the CPU and GPU, it ramped up to 706W. The CPU was taking around 200W, while the GPU was pulling 360W, which is 60W more than the RTX 5070 Ti.
Remember that was during Furmark 2, and that pushes the CPU and GPU to their utmost limit, something that you probably won't do during everyday use. So, this PSU should be easily able to handle the power requirements of the RTX 5070 and 5070 Ti and deliver a stable supply, so that you can have a smooth gaming or working experience.
What users say
According to Amazon reviews, this PSU is reliable and has excellent and stable performance. One reviewer said: “Overall, the RM750x feels like a top-tier power supply – solid, reliable, and built to handle the demands of a high-performance gaming machine. If you’re building a gaming rig and want something that won't disappoint, this is the one to go for. Just plug it in, sit back, and let the power flow.”
- Wattage: 750W
- Form Factor: ATX
- Rating: 80 Plus Bronze, Cybenetics Silver
- Design: Non-modular
- Low cost in a competitive market range makes it an appealing choice
- Rifle bearing fan expected to outlast warranty which itself is OK for a low-rated PSU
- Compact size and limited cables make it easier to work with and not miss anything build
- Nonmodularity limits customization and available connectors, including one EPS and two individual PCIe (although one double causes less trouble)
- Can get noisy under loads, although less perceptible in a build
- Only one SATA and PATA limits peripheral connections but a good distance between each gives good reach
If you're operating on a budget and want the best possible PSU to power the RTX 5070 or the RTX 5070 Ti, we recommend you check out the Corsair CX750. We've reviewed this pocket-friendly PSU, and it has decent performance. It costs less than the RM750x but can meet these cards’ power requirements.
However, it does take a hit in the efficiency rating as it is rated for 80+ Bronze and Cybenetics Silver. Cybentics’s efficiency rating means that it should be about 85% to 87% efficient, while the 80+ standard says that it should be 82% efficient at 100% and 85% efficient at 50% load.
In addition, it is non-modular, meaning all the cables are connected to the PSU, and you can't remove them. So, you'll have to store them in the PSU compartment, which can be a hassle, but you probably won't be switching out the PSU anytime soon as they generally last a long while.
If you're after a more budget PSU, the Corsair CX750 provides a good choice, dropping down from its initial cost makes it a lot more competitive choice.
PC Guide
That being said, while it might not be as efficient as other options on this list, it can still support high-end combinations, such as pairing these GPUs with the upcoming Ryzen 9 9950X3D or the 9900X3D, which have a 170W and 120W TDP, respectively.
Besides that, it has a 140mm rifle-bearing fan without a Zero RPM mode, meaning that it is also not the quietest PSU out there. This is a very bare-bones power supply unit that just focuses on getting the job, and to test its performance, we used the same test bench as we did for the RM750x with the 7950x and 3090.
When we ran the Furmark 2 stress test for the CPU and GPU, the temperature of the two components increased to 95°C. The processor peaked at 196W and lowered to 190W after a bit, while the GPU pulled around 369W. So, the total power being pulled was around 736W, which is close to the limit of this PSU. However, despite that, it didn't crash and kept delivering a stable supply.
Besides that, we didn't notice any coil whine, and the noise wasn't too much to distract you from your work or while you were playing games. So, if there is some ambient noise, you probably won't even notice it.
Overall, this is a decent PSU for the price and should be able to power your RTX 5070 or RTX 5070 Ti without any issues.
What users say
According to Amazon reviews, this PSU gets the job done and is perfect for those who don't want any fancy features. One reviewer said: “Excellent power source! It arrived in Colombia in less than a week, without problems it worked perfectly, bought in a black Friday sale, 750W 80+ bronze, you never have to skimp on buying a quality power supply and this one of course it is, perfect for a PC Gamer, I am very comfortable and recommend it a lot.”
- Wattage: 860W
- Form Factor: ATX (325 x 110 x 210mm)
- Rating: 80+ Platinum, Cybenetics Platinum
- Design: Fully modular
- After an efficient and quiet power supply to last you many years
- After a PSU to power the highest end of hardware
- Require a native ATX 3.0 PSU for modern day GPUs
- If you're looking for a more cost-effective solution
If you want a significant overhead for your RTX 5070 or 5070 Ti build, we recommend checking out the Fractal Design ION+ 860P. This is an 860W power supply unit, and in our Fractal Design ION+ 860P review, it showcased excellent performance.
This PSU has an 80+ and Cybenetics Platinum rating, which, according to Cybenetics, means that its efficiency ranges between 89% to 91%. As for the 80+ standard, it should be 89% efficient at 100% load and 92% efficient at 50% loads. So, this PSU is highly efficient and should provide plenty of overhead for overclocking, but it comes at a high cost, which is its only downside.
That being said, it can be used with more powerful GPUs like the RTX 5080, which has a recommended PSU of 850W. So, this is why I suggested this PSU if you're looking for a high-end option: It can easily handle the load of the RTX 5070 and 5070 Ti and even take it a step further.
If you were to pair the 5070 Ti and the Ryzen 9 9950X3D together, the power draw would be around 470W, leaving you with a 390W overhead, which should be enough even if you were to overclock the GPU and the CPU.
Although a more expensive choice of power supply, the Fractal Design Ion+ 860P brings a high level of efficiency and Wattage to your build. Ensuring most of your electricity is used as intended from the Platinum ratings.
PC Guide
This PSU also features 140mm Fluid Dynamic Bearing fans, which have very little resistance, meaning there is little wear and tear, prolonging the fan’s life. Due to this, they also have a low noise output, and according to Cybenetic, it has an A+ rating for the noise level, meaning it ranges between 15 dB(A) and 20 dB(A), which is extremely quiet.
To put it into reference, a whisper is believed to have a noise level of 30 decibels, which is quieter than that. Coupled with the Zero RPM mode, you probably won't even hear the fan spinning. Also, according to the Cybenetic testing, the ION+ 860P is 89.952% efficient at 115V with an average noise output of 18.05 dB(A).
When switched to 230V, the average efficiency increased to 91.727%, with the noise level decreasing to 17.99 dB(A). This is perfectly in line with its efficiency and noise level ratings. This means that the system will utilize most of the energy being pulled from the wall socket, which will reflect on your electricity bills in the long run.
Overall, this is an excellent processor, and it does cost a lot, especially compared to 850W PSUs from other brands, but it has a Platinum efficiency rating, and it can used with other GPUs without any issues. The only exception for this case is the RTX 5090, which has a 1000W power requirement, but if you pair it with a budget CPU, you can most likely use this PSU with that as well.
- Wattage: 850W
- Form Factor: ATX (160mm L)
- Rating: 80+ Gold, Cybenetics Gold
- Design: Fully modular, side connectors
- Innovative and excellent side connectors in a less-seen white colorway
- Long 10 year warranty and using an FDB fan should last longer
- White zip ties and cables match the aesthetic
- Top build quality and quality components provide strong and quiet performance
- Smaller type 5 cables can be a bit finicky to use, although side access makes it easier
- Type 5 is less common so requires custom sleeve ordering for custom cables
- Power connector ports switch orientation for bigger connectors
The RTX 5070 Ti has a 300W TDP, and we’ll go with the highest use case to ensure the maximum overhead for upgrades and overclocking, and an 850W PSU will provide just that. That being said, high-end PSUs can be costly, but the Corsair RM850x Shift White is an affordable power supply unit, and we’ve also tested it, giving it a 4.5/5 rating in our Corsair RM850x Shift White review due to its exceptional performance.
This power supply unit has an ATX form factor but with a length of 160mm, making it slightly lengthier than usual. Besides that, it has an 80+ and Cybenetics Gold rating, which means its efficiency ranges between 87% and 89%, according to Cybenetics. The high-efficiency rating means that more power being pulled from the socket will be utilized, and less of it will be lost to resistance and heat, which means efficient utilization and less of an impact on your electricity bills in the long run.
The design of this PSU is unique as it features the connections on the side, toward the side panel, rather than on the back of the PSU compartment. This means that when you install it, the connectors are facing you, and being fully modular makes it even easier, as you only have to make the necessary connections and store the rest of the cables in the box.
The Corsair RM850x Shift White brings plenty of innovation and uniqueness to the PSU market and updates the popular model. Bringing native ATX 3 support for Nvidia graphics cards but updating them for safer 12V-2×6 puts you a bit more at peace of mind.
PC Guide
Since the RTX 50-series GPUs require a 16-pin power connector, the newer versions of this PSU with the ATX 3.1 standard feature the 12V-2×6 power cable capable of delivering up to 600W. So, you can rest knowing that this PSU can deliver as much power as your system needs.
To test its performance, we used the RTX 3090 and the Ryzen 9 7950X, which have 350W and 170W TDP, respectively, totaling 520W, but in real-world scenarios, components tend to consume more power than their advertised TDPs. That being said, at idle, the power draw was 126W, but when we started testing on the bench, the power jumped up to 705W, with the processor and graphics card pulling 570W.
So, despite utilizing 82% of its capacity, this PSU had no issues keeping up with the power requirements, and the 140mm fan didn’t make much noise, which is great. What this means is that the RM850x should be able to easily keep up with the RTX 5070 Ti and the RTX 5070 even if you pair it with the Core Ultra 9 285K, which has a 250W TDP, meaning the total power draw on paper would be 550W for the 5070 Ti, but it’ll consume more than that most likely,y and there’ll still be room for more with this PSU.
What users say
According to Amazon reviews, the Corsair RM850x Shift White has excellent quality and performance. One reviewer said: “Very quiet- The cables work perfectly and you only need to run the necessary ones which is nice. Be careful though – The shift intentionally has the cables on a different side, so verify with Corsair that your case will work with this specific one before ordering.”
- Wattage: 1000W
- Form Factor : ATX
- Rating: 80 Plus Gold, Cybenetics Gold
- Design: Fully modular, side connectors
- Looking for a long-lasting power supply for many years
- Need 1000W for your build including the top-end hardware
- Want quiet and efficient performance
- If your recommended power is below 1KW
- Looking for a better efficiency
- After a more cost-effective model
If you’re looking for a PSU with excellent performance and efficiency and one that can provide a decent overhead for future upgrades, check out the Corsair RM1000x. While a 1000W PSU is better suited for the RTX 5090, using this PSU in your RTX 5070 or 5070 Ti gaming PC should ensure that you can overclock all the major components without running into power issues.
Also, if you can get it on sale, it should provide even better value in the long run, as it should be able to power your setup through multiple upgrades. In our Corsair RM1000x Shift review, it has excellent efficiency and a low noise output. It has an 80+ and Cybenetics Gold rating. This means that according to 80+, this PSU should be 90% efficient at 50% load and 87% efficient at 100% load.
On the other hand, the Cybenetics rating says that this PSU’s efficiency ranges between 87% and 89%. So, there is only a difference of 1%. However, according to testing conducted by Cybenetics, this PSU was 88.494% efficient at 115V and 90.176% efficient at 230V, which is great as it is 1% beyond what the Cybenetics Gold rating dictates.
An innovative yet simple change, the RM1000X Shift makes building, upgrading, and managing those pesky cables. With a great load of power and strong efficiency, it provides a great choice for your next build, as long as you're willing to pay the premium for it.
PC Guide
This PSU is also fully modular, meaning no cables are permanently attached to it, and you can make only the necessary connections. This makes cable management much easier, as it reduces the clutter of extra cables. The “Shift” aspect of this power supply unit is that the connections are on the side rather than on the back.
So, when you install it, the connections will be on the side on the open side, meaning you can easily connect the cables without having to fiddle around with the ports or install them after making the connections. However, this also means that the cables might protrude out a bit, so ensure that your PC case has enough space to accommodate this design.
The best aspect is that this GPU is ATX 3.0 and PCIe 5.0 compliant, meaning it has the 12VHPWR cable; however, the newer versions of it are ATX 3.1 and PCIe 5.1 compliant. This means that you can connect the PSU and GPU using a single 12V-2×6 power cable and call it a day. This makes it much easier as you won’t have to use the adapter provided by Nvidia or purchase a 12V cable or adapter from Amazon or other retailers.
Overall, this is an excellent power supply unit that should be more than enough to power your gaming PC even if you pair the RTX 5070 and 5070 Ti with the more powerful processors like the 9950X or the 285K, which have a TDP of 170W and 250W, respectively.
What users say
According to Amazon reviews, this PSU is easy to install, has a good build quality, and runs quiet. One reviewer said: “This power supply is actually a bit surprising. I expected the shift to kind of get in the way, but it wasn’t actually an issue. And those type 5 cables are incredibly flexible, especially compared to my last type 4. They mostly look good enough I don’t consider cable sleeving necessary. This power supply is, I’m sure, going to be incredibly reliable, and a good price for continued warranty support that Corsair gives.”
How to pick the best PSU for the RTX 5070 and 5070 Ti
To choose the best PSU for the RTX 5070 or 5070 Ti, or any PSU, you need to keep in mind a couple of factors. We've listed a couple of them below to help you narrow down your list of options and choose the one that best suits your requirements.
Budget
Before investing in any PSU, you must filter the options based on your budget. This should give you a list of power supply units that offer the best balance between performance and value. However, we recommend not compromising on the quality of the PSU, as it safeguards the other components and can keep them safe in the case of a surge or disaster.
Power requirements
It is always a good idea to check the power requirements of the graphics card you're getting. In this case, the RTX 5070 and 5070 Ti have recommended power of 650W and 750W, respectively.
So, just from this, you'll know that you need to find a good 650W or 750W PSU, but we recommend going for a 750W power supply unit for both graphics cards as it'll offer more overhead for the RTX 5070 and match the requirements of the 5070 Ti.
Efficiency
The efficiency rating of a PSU determines how much energy it is pulling will go toward the components and how much will be lost. The higher up you go in rating, the more efficient a PSU will be, but it'll also cost more; it is directly proportional. There are two standards: 80+ and Cybenetics. For the most part, they are similar with few variations, but a rating of Gold and above is considered great. Here are the ratings for the two standards.
80 Plus
- 80 Plus
- 80 Plus Bronze
- 80 Plus Silver
- 80 Plus Gold
- 80 Plus Platinum
- 80 Plus Titanium
Cybenetics
- Cybernetics Bronze
- Cybernetics Silver
- Cybernetics Gold
- Cybernetics Platinum
- Cybernetics Titanium
- Cybernetics Diamond
Can I use my old PSU with the RTX 5070 Ti or the 5070 if it doesn’t have a 12V-2×6 connector?
If your older PSU doesn’t have a native 12V-2×6 power cable, you can still power the RTX 5070 or the 5070 Ti by using two 8-pin connections as they’ll deliver 300W each, totaling 600W, which a single 12V-2×6 cable is capable of.
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