有無80PLUS所造成的耗電影響 - 3C

By Jacky
at 2013-10-03T03:19
at 2013-10-03T03:19
Table of Contents
其實從最早80+白牌剛流行就有人算過,跟7X%轉換率的PSU比起來,
貴那好幾百真的划算嗎?真的有省多少電費嗎?之類的質疑印象中都有討論過,
接著,當銅牌開始流行,又有人開始計算跟白牌(當時已變成常態)相比,
結果相同,單以價格來衡量,銅牌cp值不怎麼樣。
接著金牌逐漸變成主流...於是又算出金牌cp值也不怎麼樣,到這個地步,
似乎可以得出結論,掛80+的PSU,cp值都不好,不如那些舊型號的。
但還有其他思考點,當轉換效率低導致廢熱多,
結果:→散熱要做好→風扇轉數高→吵、熱風大;
當我從舊BKV420W換到銅牌PSU,最大感受差別就是變安靜了,
因為轉換效率提高→廢熱減少→風扇轉數可以調的比較低。
至於「安靜」值多少錢?該如何衡量價值,這部分就因人而異,
就像有人願意為了安靜花錢改散熱器,有人覺得原廠空冷就好,吵一點無所謂。
其他關於用料、設計架構這些有沒有那個價,也是端看個人判斷,
畢竟也有人是覺得可以用就好,反正再棒的用料或新設計還是有故障率,
倒不如把那些錢花在CPU或顯示卡上爽度比較高。
我的想法是,如果同價位帶的產品,以高效率的新型號來取代是好事,
當7x%是主流,80+是高價品,沒必要買80+白牌,因為cp值低落,
當白牌是主流,82+是高價位,不必特別去買7x%和82+,
以此類推,現在82+主流,金牌定位在中上,白金是高價位,
相較之下以前cp值欠佳的銅牌就變得可以接受了。
--
貴那好幾百真的划算嗎?真的有省多少電費嗎?之類的質疑印象中都有討論過,
接著,當銅牌開始流行,又有人開始計算跟白牌(當時已變成常態)相比,
結果相同,單以價格來衡量,銅牌cp值不怎麼樣。
接著金牌逐漸變成主流...於是又算出金牌cp值也不怎麼樣,到這個地步,
似乎可以得出結論,掛80+的PSU,cp值都不好,不如那些舊型號的。
但還有其他思考點,當轉換效率低導致廢熱多,
結果:→散熱要做好→風扇轉數高→吵、熱風大;
當我從舊BKV420W換到銅牌PSU,最大感受差別就是變安靜了,
因為轉換效率提高→廢熱減少→風扇轉數可以調的比較低。
至於「安靜」值多少錢?該如何衡量價值,這部分就因人而異,
就像有人願意為了安靜花錢改散熱器,有人覺得原廠空冷就好,吵一點無所謂。
其他關於用料、設計架構這些有沒有那個價,也是端看個人判斷,
畢竟也有人是覺得可以用就好,反正再棒的用料或新設計還是有故障率,
倒不如把那些錢花在CPU或顯示卡上爽度比較高。
我的想法是,如果同價位帶的產品,以高效率的新型號來取代是好事,
當7x%是主流,80+是高價品,沒必要買80+白牌,因為cp值低落,
當白牌是主流,82+是高價位,不必特別去買7x%和82+,
以此類推,現在82+主流,金牌定位在中上,白金是高價位,
相較之下以前cp值欠佳的銅牌就變得可以接受了。
--
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