Best 1000W PSU

While the PSU seems like a less exciting component to your PC build, it should never be overlooked due to its importance as the heart of your system. You want a reliable PSU to ensure your components smoothly operate to their maximum potential, as well as prevent any issues that could arise - especially the unpredictable ones like power surges. If you have a RTX 5090 or RTX 5080, you'll especially want to provide a trusted PSU to protect your investment.

If you're looking for the best of the best, the HX1000i SHIFT is the way to go. It's spec sheet is absolutely stacked: Cybenetics Platinum power efficiency, side-mounted SHIFT connectors for easy cable connections & cable management, and an integrated iCUE LINK hub for take full advantage of iCUE LINK's cable minimization. The iCUE capability will also allow you to monitor your PSU's performance such as efficiency and power draw in real-time. The 10-year warranty will provide you with peace of mind for the entire duration of your PC build, or even two.

If you're looking for a PSU with side-mounted SHIFT connectors but don't need the additional capabilities from the HX1000i SHIFT, the RM1000x SHIFT is the proper counterpart. You'll still have access to a native 12V-2x6 GPU cable, ATX 3.1-certification, PCIe 5.1 compliance, and 10-year warranty. The Cybenetics Gold efficiency certification is also a great baseline for power efficiency.

For a 1000W PSU that's more entry-level friendly whilst still proving a solid choice for your build, then the RM1000e is the one you want. You'll have access to a dedicated 12V-2x6 GPU cable, ATX 3.1 certification, PCIe 5.1 compliance, and Cybenetics Gold rated efficiency. If you're yearning to do an all-white build, then the RM1000e is also the perfect choice as it's the only one offered in white amongst these 1000W PSUs.

For those small form factor enthusiasts who are assembling a tiny but mighty PC, the SF1000 is the correct bet. Despite its tiny footprint, it's a 1000W PSU with Platinum efficiency power rating that'll comfortably up to a RTX 5090. It yields the same ATX and PCIe compliance/support as the other PSUs mentioned above, as well as zero RPM fan mode for silent operation. Don't let the SF1000's tiny size fool you as it's a highly capable PSU.

If you're still unsure what wattage PSU you need for your PC build, here's some useful tools to help you make the right decision:

• PSU Calculator - Choose your GPU and CPU, answer a few quick questions, and we'll suggest the best few PSU options for your setup.
• PC Builder - Get instant hardware recommendations, size guides and compatibility checks for your full PC build, including your Power Supply.