“马叉”再临：NVIDIA笔记本显卡奇葩频现-快科技-科技改变生活

“马叉”再临：NVIDIA笔记本显卡奇葩频现

上方文Q
2012年10月03日 17:49
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GeForce GT 645M看起来似乎是GeForce GT 640的简单升级版，二者规格如出一辙，前者仅仅是将核心频率从625MHz提升到710MHz而已。核心基本肯定还是28nm GK107，384个流处理器。

GeForce GT 625M又与GeForce GT 620M非常相似，但邪门的是规格不但没有提升，反而下降了，显存位宽从128-bit砍半为64-bit，而核心都是28nm GF117，流处理器96个。NVIDIA你这是要闹哪样啊！

根据NVIDIA给出的相对性能参考，GTX 675MX可以比40nm GF114核心的马甲版GTX 675M好个大约20％，GTX 670MX则是稍稍低于GTX 675M，GT 645M虽然只是稍稍提升了一点频率但是号称比GT 640M性能高出25％以上(你信么)，GT 625M则干脆没有放出和GT 620M的对比，可能不好意思了。

参考阅读：

三世同堂 GeForce 600M规格完全解析 http://news.mydrivers.com/1/222/222735.htm

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