A卡和N卡的区别

· A卡早期是指采用ATI显卡芯片的显卡，但后面被AMD收购后，A卡其实就是AMD显卡。

A卡作品有镭、X系列。

· N卡则指的就是NVIDIA显卡芯片的显卡，N卡作品有GeForce（GTX）系列，GeForce FX（GT）系列等等。

A卡和N卡对比

A卡架构优势在于理论运算能力，但执行效率不高，对于复杂多变的任务种类适应性不强，需要软件上的支持才能发挥应有性能。

A卡优点：注重２D平面画质，功耗小，价格相对更优惠

A卡缺点：软件优化度不够，执行效率不高

区别于A卡，N卡的构架执行效率极高，灵活性强，在实际中能发挥正常水平。但功耗较难控制，较少的解决单元也限制了其理论运算能力；

N卡优点：注重３D性能和速度，画面特效帧数更好，游戏驱动更好，散热效果更好

N卡缺点：N卡功耗大

N卡的GPU中每个流解决器都具有完整的ALU(算术逻辑单元)功能，在发出一条操作指令时每个流解决器都能充分工作．而A卡的GPU中每个流解决器的5个流解决单元都是固定的，不能拆开重组，如果在解决纯4D指令的时候，每个流解决器只能解决一条4D指令，有一个流解决器单元闲置，但却没有法加入其他组合来共同工作。

那么到底应该选择哪一个平台显卡？

在修姐看来众多显卡中没有哪个最好，只有最适合自己的！用着合适，能满足日常电脑需求就好了，没有必要偶尔下班吃个鸡用个2080ti，反正又不一定吃到鸡！

但如果真的是土豪中的强迫症，建议买两台电脑，玩游戏用N卡，看电影电视或者视屏图像处理用A卡，绝对牛逼刺啦带闪电

最后，对于选择N卡还是A卡这个问题，我觉得大家能够理性的讨论其性能所运用的区域。无论是哪一平台的显卡只要你根据你日常所使用的软件和游戏来选择就可以了。没有好坏之分，只有看每个人运用在哪一方面从而去选择哪一个平台的显卡。

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