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What power supply do you need for the RTX 5090 and RTX 5080?
- Nvidia's RTX 50-series GPUs require PSUs that meet or exceed recommended specifications to avoid crashes, ensure system stability, and maintain long-term reliability. The flagship RTX 5090 comes with a maximum TGP (Total Graphics Power) of 575W, while the RTX 5080 is listed to draw up to 360W. These demands are higher when compared to the RTX 40-series. Board partner models may arrive with slightly higher power requirements depending on their overclocking capabilities.
- Nvidia recommends at least a 1000W PSU for its RTX 5090 for most systems, depending on your other hardware. For RTX 5080, an 850W PSU should suffice though a larger PSU of 1000W or above may be required for overclocking.
- Recommended efficiency ratings for PSUs include 80 Plus Gold or Platinum certification to lower heat output for high-power GPUs like the RTX 50-series.
- PSUs should support the PCIe Gen 5 16-pin connector (12VHPWR/12V-2x6) to ensure compatibility and optimal performance for RTX 50-series GPUs. It is recommended to upgrade to an ATX 3.0/3.1 PSU for better long-term compatibility.
- Allow for 20-30% wattage headroom beyond your system's peak power consumption to ensure stability during power spikes and prolong PSU lifespan.
- MSI MAG A1000GL is a robust 1000W option for RTX 5090, offering a modular cable design and 80 Plus Gold rating with a 10-year warranty for around $150. For RTX 5080, the MSI MAG A850GL is an 850W version priced around $110.
- Board partner models of RTX 5090 and RTX 5080 may arrive with slightly higher power requirements, depending on their overclocking capabilities.
- The new 12V-2x6 connector designed for RTX 50-series comes with longer conductor terminals and shorter sense pins to address durability issues that connected RTX 40-series GPUs had faced in the past.
- GPU board partners such as MSI and Zotac introduced new safety measures this year for their RTX 50-series GPU models, such as yellow-tipped adapters and safety-indicator LEDs.
- Wattage, PSU efficiency rating, and 16-pin connector support should be considered when upgrading to RTX 5090 or RTX 5080. Allow for at least a 20-30% wattage headroom beyond your system's peak power consumption to ensure stability.
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