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The RTX 5080 is a premium GPU for 4K gaming, and it requires 360W of power. Therefore, you will need a high-wattage PSU to power this GPU.
The Nvidia RTX 5080 is a high-end GPU designed for 4K gaming. It is a premium graphics card meant to deliver high graphical fidelity and performance. However, it is also rated to consume 360W of power by default, which can rise to 450W in custom OC models. Even if you buy the 360W variant, the transient power of RTX 5080 can go up to 500W or higher for one or two seconds. That’s why purchasing a higher wattage PSU is crucial if you want longevity of your GPU and other components.
In this article, we are showcasing some of the best high-wattage PSUs you must buy before installing the RTX 5080 in your PC.
Note: Parts of this article are subjective and reflect the writer’s opinions. Also, the prices mentioned herein are subject to change.
What Are the Best PSUs for Nvidia RTX 5080?
1) ASUS TUF Gaming 1200W PSU
The ASUS TUF Gaming 1200W is one of the best 1200W power supplies in this price range, thanks to its use of high-quality components. Its capacitors and chokes have received Military Grade certification for their premium quality. The fan is designed with dual ball bearings, which provide a higher lifespan than fluid dynamic bearings, rifle bearings, or sleeve bearings. The PCB is also coated to deliver extra protection against moisture, dust, and other contaminants. Therefore, it is one of the best PSUs to pair with the RTX 5080 in terms of price-to-performance ratio.
| Specifications | Values |
|---|---|
| Total power | 1200W |
| Efficiency | 80 PLUS GOLD |
| ATX Specs | Fully compliant with ATX 3.1 and features a 12V-2×6 cable for PCIe 5.0 GPUs |
| Protections | OVP (Over Voltage Protection) | UVP (Under Voltage Protection) | OCP (Over Current Protection) | SCP (Short Circuit Protection) | OTP (Over Temp Protection) | OPP (Over Power Protection) |
| Dimensions | 150mm x 150mm x 86mm |
| Modularity | Fully Modular |
| Warranty | 10 years |
2) be quiet! Pure Power 12 M
If you want a higher 1200-watt PSU, but don’t want to pay an exorbitant price of $200 or higher, then the be quiet! Pure Power 12 M is the better choice for you. It costs under $170, yet there’s no compromise. It delivers 1200W, which is way more than enough for the Nvidia RTX 5080. Thanks to the extra power budget, you will be able to add other high-power components, such as Intel Core i9-14900K and other accessories, without any worries.
| Specifications | Values |
|---|---|
| Total power | 1200W |
| Efficiency | 80 PLUS GOLD |
| ATX Specs | Fully compliant with ATX 3.1 and features a 12V-2×6 cable for PCIe 5.0 GPUs |
| Protections | OVP (Over Voltage Protection) | UVP (Under Voltage Protection) | OCP (Over Current Protection) | SCP (Short Circuit Protection) | OTP (Over Temp Protection) | OPP (Over Power Protection) |
| Dimensions | 160mm x 150mm x 86mm |
| Modularity | Fully Modular |
| Warranty | 10 years |
3) CORSAIR RM1000e 2025 PSU
If you want a decent high-performance PSU under $150, the CORSAIR RM1000e is a great option. It is capable of providing 1000W of power, so it can not only power the RTX 5080 but also the RTX 5090. Therefore, you can buy the RTX 5080 without any worries, knowing that you can upgrade to newer 90-class GPUs. This power supply would easily support higher-power 600W graphics cards. It is also extremely efficient and supports modern standby for better power savings. The capacitors inside are rated for a higher 105°C working temperature. Therefore, they will last longer, even with extremely high loads.
| Specifications | Values |
|---|---|
| Total power | 1000W |
| Efficiency | 80 PLUS GOLD |
| ATX Specs | Fully compliant with ATX 3.1 and features a 12V-2×6 cable for PCIe 5.1 GPUs |
| Protections | OVP (Over Voltage Protection) | UVP (Under Voltage Protection) | OCP (Over Current Protection) | SCP (Short Circuit Protection) | OTP (Over Temp Protection) | OPP (Over Power Protection) |
| Dimensions | 140mm x 150mm x 86mm |
| Modularity | Fully Modular |
| Warranty | 7 years |
4) Lian Li Edge 1000W PSU
Do you have the newer dual-chamber cases? Or any other cases where you find it difficult to plug cables in and out of the PSU? That’s what the Lian Li Edge 1000W PSU is designed for. It fixes these connection issues and makes it easier for you to manage cables sticking out of it. The Lian Li Edge has an innovative L-shaped design that extends from the main power supply body and has all the main power connectors.
On the other hand, the rear side has multiple connectors for attaching extra USB devices. It also comes with a FAN Hub, which is designed for cases with six or more fans. You can easily pair it with the RTX 5080 without any worries.
| Specifications | Values |
|---|---|
| Total power | 850W |
| Efficiency | 80 PLUS Platinum |
| ATX Specs | Fully compliant with ATX 3.1 and features a 12V-2×6 cable for PCIe 5.1 GPUs |
| Protections | OVP (Over Voltage Protection) | UVP (Under Voltage Protection) | OCP (Over Current Protection) | SCP (Short Circuit Protection) | OTP (Over Temp Protection) | OPP (Over Power Protection) |
| Dimensions | 182mm x 150mm x 86mm |
| Modularity | Fully Modular |
| Warranty | 10 years for the PSU and 2 years for the FAN Hub |
5) Cooler Master MWE Gold 850 V3
If you are on a really tight budget, then the Cooler Master MWE Gold 850 V3 is also a great choice. It costs under $110, yet it delivers everything a modern PSU should, including 600W of power directly to the GPU, even though the RTX 5080 doesn’t need that much. However, it’s good for future upgradability. This Cooler Master MWE PSU also comes bundled with a 90° 12V-2×6 PCIe 5.1 connector for the RTX 5080. Therefore, you don’t have to worry about something breaking in the cables when bending near the GPU. Despite being cheaper, Cooler Master has equipped this power supply with a 10-year warranty.
| Specifications | Values |
|---|---|
| Total power | 850W |
| Efficiency | 80 PLUS GOLD |
| ATX Specs | Fully compliant with ATX 3.1 and features a 12V-2×6 cable for PCIe 5.1 GPUs |
| Protections | OVP (Over Voltage Protection) | UVP (Under Voltage Protection) | OCP (Over Current Protection) | SCP (Short Circuit Protection) | OTP (Over Temp Protection) | OPP (Over Power Protection) |
| Dimensions | 140mm x 150mm x 86mm |
| Modularity | Fully Modular |
| Warranty | 10 years |
Final Thoughts
The ASUS TUF Gaming 1200W and be quiet! Pure Power 12 M PSUs are obviously a better match for the Nvidia RTX 5080. The CORSAIR RM1000e 2025 is a great mid-range. However, if you want a power supply with an innovative design and a great price-to-performance ratio, the Lian Li Edge 1000W is a one-of-a-kind PSU. Lastly, the Cooler Master MWE Gold 850 V3 is for users on a really tight budget. The only compromise it has is its lower 850W power, which is still fine for the Nvidia RTX 5080 but leaves less room for future upgrades.
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