Unverified87% confidenceSolutionTime unknown
选购流程：先算主机峰值功耗(CPU TDP+显卡功耗+外设约50-100W)→乘1.5-1.8倍定功率→按显卡等级确认ATX3.0与12VHPWR需求→按机箱定ATX/SFX规格→在此基础上按预算选金牌全模组或铜牌半模组→静音需求加选停转风扇
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87%
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Long-term
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Unverified电源瓦数计算：显卡TDP + CPU TDP后预留50%冗余，如RTX 4070(200W)+i5(125W)约325W，选650W金牌电源留足升级空间77% similarUnverified游戏主机的电源功率应≥显卡TDP+CPU TDP+150W冗余，例如RTX 4070(200W)+i5-13600K(125W)建议配650W金牌电源，RTX 4080及以上建议850W74% similarUnverified电源额定功率应为整机满载功耗的1.5-2倍留余量：搭载RTX 4070级别显卡建议650W金牌，RTX 4080/4090建议850W-1000W金牌及以上72% similarUnverified标称TDP（如65W）只是基础功耗，Intel的PL2和AMD的PPT才是实际满载峰值，i5-13600K标65W但满载可冲到180W+，选电源和散热要按峰值算而非TDP71% similarUnverified电源功率不能只看CPU+显卡额定功耗之和，需预留30%余量并选80PLUS铜牌以上；RTX40系高端卡瞬时功耗尖峰高，低质电源会触发保护关机71% similar
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