The Best PSUs for GeForce RTX 50 Series Graphics Cards from ROG and TUF Gaming
The power supply is the unsung hero of your system, filtering incoming power from the electrical grid and distributing it to every component in your PC at precise voltages. And if you're upgrading to one of NVIDIA's latest GeForce RTX 50 SUPER graphics cards, you may need to upgrade your PSU as well, so let's take a closer look at what models are out there and what's behind the popular names.
ASUS offers several different lines of PC power supplies, each with its own design and feature set:
- The ROG Strix Platinum series delivers high performance with quality components like GaN MOSFETs and an intelligent voltage regulator. GPU-First. Excellent style completes the BP, ready to stand out in any collection.
- The ROG Thor series of power supplies delivers the highest power with the best efficiency thanks to GaN MOSFETs and other high-quality components. Intelligent Voltage Regulator GPU-FIRST delivers ultra-stable power for high-end builds, and a small OLED display on the side shows your PC's power consumption.
- ROG Loki, as the name suggests, is the little brother of the Thor line, bringing Platinum efficiency in an SFX-L size for compact Mini-ITX builds.
- ASUS TUF Gaming Gold power supplies offer efficient and reliable power for any build, engineered to withstand extreme temperatures, vibration, corrosion and more, keeping your system powered for years to come.
- The ASUS Prime series of power supplies, as the most universal and classic, will satisfy the needs of most assemblers of work and home PCs with an optimal balance of performance and price.
You can find a more detailed description of these power supply lines here. However, even within these clear product lines, you will have to narrow down your options.
Here's what to consider when buying a power supply.
How much power do you need?
Before you choose a power supply, you need to determine your power needs. ASUS and ROG offer options ranging from 750W to 1600W, with the ROG Thor 1600W Titanium III. If you’re not sure how much power your next build will require, ASUS has a interactive power supply calculator , which will suggest the right power based on the components in your build. You can also refer to this handy chart for NVIDIA and AMD graphics cards, both old and new, which will give you the right power for both the CPU and GPU.
We often recommend going at least one tier higher than your PSU needs, as the extra headroom will help if you're adding a lot of USB devices, planning to overclock your system, or want to future-proof yourself - a quality PSU can last you through multiple builds, and ROG and TUF Gaming PSUs come with a 10-year warranty, so you can buy with confidence for the long haul.
- If you're planning on getting the most performance out of your new GeForce RTX 5090, we recommend one of the top-of-the-line ATX 3.1 power supplies, like the ROG Thor 1200W Platinum III. Its premium components provide stable power for your entire PC, while our proprietary Intelligent Voltage Regulator GPU-First (IVS) ensures that your graphics card receives the power it needs even during intense loads.
- If you’re targeting the new GeForce RTX 5080, you’ll want a high-quality PSU like the ROG Thor 1000W Platinum III, which has all the same features as its more powerful counterpart. The ROG Strix 1000W Platinum also pairs well with the GeForce RTX 5080. For the GeForce RTX 5070 Ti, we recommend the ROG Strix 850W Platinum, which offers the same high-quality components and efficiency as the 1000W version, but with slightly less power. We also recommend the TUF Gaming 850W Gold if you’re looking for a simpler option.
- The GeForce RTX 5070 has similar power requirements to the 5070 Ti, so consider the ROG Strix 850W Platinum, TUF Gaming 850W Gold, or ASUS Prime 850W Gold.
For more power supply options and a calculator to help you determine the right wattage for your system, check out ASUS Power Supply Portal .
Don't waste: choose your efficiency level
The above guidelines will help you achieve your desired goal, but if you want to learn more about these timeframes, we’re here to help. Maximum wattage is a great way to understand your PSU’s capabilities, but you should also consider your PSU’s efficiency rating. When your PSU draws power from the grid, some of it is lost converting it to power for your components. The higher the efficiency of your PSU, the better it is at converting watts from the grid into power for your PC, which means lower energy bills, less heat, and less noise.
Less efficient power supplies may have a lower initial cost, but you’ll end up paying for more power that never reaches your gaming rig and is instead wasted as heat. Luckily, all current ROG and TUF Gaming power supplies are 80 Plus Gold certified or higher, meaning that at 50% load, they can turn 90% of the AC power from the wall into DC power for your PC. High-end power supplies like the ROG Strix 1200W Platinum and Thor 1600W Titanium III take efficiency even further while offering cutting-edge technology.
And remember, these efficiency ratings are just the minimum requirements to earn that label. The ROG Thor 1200W Platinum III, as you can see in the graph above, exceeds the 80 Plus Platinum requirements, delivering even greater efficiency. That’s thanks to high-quality components like GaN MOSTFETs that deliver optimized power to all your components — and because they’re so small, they allow for simpler internal layouts for better heat dissipation.
And of course, top-end ASUS power supplies also feature a new patented intelligent voltage regulator GPU-First (IVS) - Modern high-performance graphics cards often require quick bursts of power during intense gaming sessions, and by monitoring the voltage needs of the graphics card, ROG Thor III and ROG Strix Platinum power supplies can adapt their power delivery faster, ensuring stable, optimal performance even as your graphics card overclocks.