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同样是i7 i5处理器笔记本CPU和台式机CPU性能究竟差多少?

更新时间:2026-08-22 12:22:37 | 编辑:争端 | 信息来源:互联网
大家都知道同样是i3,i5,i7处理器,分为台式机和笔记本专用的,笔记本里还分为标准电压和低电压版的,很多朋友会问笔记本i5处理器和台式机i5的性能差多少,笔记本i5相当于台式机的什么处理器呢?



除了我们可以通过CPU天梯图来查看CPU性能排名,下面小编还分享了实际上的性能测试,大家可以参考一下哦。

推荐:英特尔处理器排名天梯|Intel CPU性能排名天梯图 2018.07


首先:

Intel台式机什么档次是几个核心,几个线程,都挺规矩的,不过到了同名的笔记本处理器中可就不是这样了,不仅和台式机不同,甚至连同系列中也有区别,大家可以参考下面的图表。

从表中看来,U系列(低电压)笔记本处理器的规格比台式机处理器差不多要低一个档次,比如i5-8250U性能大致相当于i3-8100,而i7-8550U则大致相当于i5-8400。H版(标准电压)移动处理器在性能档次上没有差别,比如i7-8750H可以看做是i7-8700的低频率版,但是性能差距达到了20%,可千万不要以为基本等同,但确实好于桌面版i5 8代产品。而i5-8300H与台式机的i5-8400差距在15%,性能也超过i3桌面版产品。

AMD移动处理器也类似,其中Ryzen 7 2700U的4核/8线程只相当于台式机Ryzen 5 1400,而其他Ryzen移动版的CPU部分虽然没这问题,但内置GPU的配置也比台式机版本精简了不少,比如Ryzen 5 2500U的8个显示核心,就只相当于台式机Ryzen 3 2200G。


 

笔记本和台式机CPU性能差距有多大?
 

从结构看是这样,那么性能如何呢?我们用测试数据看看吧。

从表中也可以看到,同档次处理器的单核心能力很相近,对用不到那么多核心、线程的日常应用,这些笔记本处理器与台式机处理器用起来的感觉不会差太多。至于游戏能力,笔记本显卡的影响比处理器要大得多,而且除了旗舰级处理器外,其他同档次笔记本和台式机处理器的游戏性能差距也不是特别大。

所以性能上来说台式机有不可取代的优势,而移动端毕竟是为了移动而生,对性能大家也不必太苛刻了。


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