GTX 1080Ti on 500W (Upgrade to GTX 1080 or GTX 1080Ti?) : r/buildapc
If you have a 500W PSU already, and it is decent quality, it is easily enough for a 1080 Ti if you don''t overclock heavily. 1080 Ti = 250 W, CPU = 65 W, everything else = 75 W. Total maximum is 390 W, which is well within the PSU''s capability. This is at 100% load in synthetic benchmarks, so actual power usage will be much lower.
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