VIDEO RTX 3080 & 3090 Power Supply Requirements - Minimum PSU Wattage Leak

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RTX 3080 & 3090 Power Supply Requirements: Minimum PSU Wattage Insights The recent leak regarding the power supply requirements for the Nvidia RTX 3080 and RTX 3090 has stirred up discussions within the PC building community. This video analysis dives deep into understanding how much power your setup will truly require to run these high-performance graphics cards. Key Points Covered in the Video:

• The RTX 3080 is rumored to have a Total Graphics Power (TGP) of 320W, while the RTX 3090 could be pulling even more.
• Common suggestions for power supply (PSU) ratings have been quite varied, ranging from 650W to 1000W depending on who you ask.

Power Supply Calculation Approach​

To ascertain the actual required wattage, the presenter employs a PSU calculator for two distinct system configurations:

1. Best Case Scenario (RTX 3080):
   • Components: AMD Ryzen 7 3700X, 16GB DDR4, three 1TB SSDs, and six 140mm fans.
   • Base Load: Disregarding the GPU, the estimated load was around 202W.
   • Total Requirement: When the RTX 3080 is added, the total recommended PSU rating rises to 572W. Thus, a 650W PSU is suggested as a safe minimum.
2. Worst Case Scenario (RTX 3090):
   • Components: AMD Ryzen 9 3900X (overclocked), 32GB RAM, four 1TB SSDs, a Blu-ray drive, and a liquid cooling system.
   • Load Calculation: The load jumped to 387W, which when adding a potential draw of 400W from the RTX 3090, brings the recommended PSU up to approximately 837W.
   • Hence, at least an 850W PSU is recommended for those running high-performance setups.
     

     Conclusion and Recommendations​

     For users planning to build a system around the RTX 3080, a minimum 650W PSU should suffice in a minimalist setup. Conversely, for those going with the RTX 3090, particularly in overclocked scenarios, an 850W PSU is more sensible to accommodate higher load demands.
     

     Community Insights​

     This topic raises an important query for many Windows users – what PSU rating is considered sufficient for your unique builds? As the video suggests, using a PSU calculator tailored to your specific components ensures that you make an informed decision moving forward. Feel free to share your thoughts and experiences with PSU wattage in correlation to your graphics card setups below! For more detailed analysis, check out the original video by [YouTuber Name] .