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怎么查看Win7系统的主机是单显卡还是双显卡

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　　买电脑的时候独立显卡肯定要比集成显卡要好，双显卡肯定要比单显卡要好。双显卡和单显卡性能的差距应该还是很大的。那么Win7系统主机怎么查看是双显卡还是单显卡呢？

　　双显卡电脑主要有2种情形：CPU集显+独立显卡、双独立显卡（可能还包含CPU集成显卡），相当于两个以上显卡，这种情况多数在一些高端电脑当中。

　　方法一、在电脑设备管理器中查看

　　1、在电脑桌面的“计算机”图标上右键，然后选择【属性】，在打开的计算机属性界面，再点击左侧的【设备管理器】；

　　2、在打开的“设备管理器”中，展开底部的【显示器适配器】，如果下方有两个设备，则说明电脑有双显卡。

　　如图所示的电脑就是双显卡，其中HD4000显卡是i5处理器的自带核心显卡，而GT645M属于独立显卡。

　　方法二、使用驱动软件检测

　　现在的驱动软件都能检测电脑的硬件，比如说驱动精灵啊、鲁大师、超级兔子。这些软件当然也能检测电脑的显卡。打开软件检测一下显卡信息，就知道Win7电脑时双显卡还是单显卡啦。

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