有鉴于Galaxy Note 5的Exynos 7420是目前市面上唯一一款14nm手机处理器，其功耗控制本身就技高一筹，加上三星对新旗舰机身构造、系统等方面的进一步优化，能有这样的成绩也是名副其实。

在三星最新发布的Galaxy Note 5上我们并没有如愿见到传闻中的Exynos 7422处理器，而是与Galaxy S6系列同款的Exynos 7420，显然在性能上是不会有太大的提升了，但在温度控制上的确有很大的惊喜。

近日微博网友@i冰宇宙分享了一份韩国媒体所进行的Galaxy Note 5发热情况测试报告，报告中用作对比的手机包括Galaxy Note 4、苹果iPhone6 Plus、LG G4和索尼Xperia Z3+。

这三幅图分别显示了上述手机在三种使用方式后机身正面和背面的发热情况红外成像对比，依次是WiFi联网10分钟、播放MKV格式1080p视频10分钟和运行GFXBench电池测试30分钟。

▲运行GFXBench电池测试30分钟

可以看到无论是哪个项目，Note 5的机身温度都是最低的，以运行GFXBench电池测试30分钟为例，该机正、背面最高温度控制在了40摄氏度左右，而其它手机已经奔向50摄氏度了，iPhone 6 Plus也不例外，而搭载骁龙810的Xperia Z3+背面最高温度甚至达到53.3°C，顶部发热最为明显。

▲WiFi联网10分钟

▲播放MKV格式1080p视频10分钟

这些手机的后壳材质各异，Note 5和Xperia Z3+均为玻璃，iPhone 6 Plus为全金属机身，Note 4采用皮革纹路塑料，LG G4则是塑料+真皮设计。除了处理器外，机身用料的选择也是影响散热的因素之一。

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