Windows 10 Mobile刚刚推出，微软(Microsoft)并未大张旗鼓，许多用户已经从Windows Phone 8.1开始了(Windows Phone 8.1)升级过程(upgrade process)。然而，这次升级并不仅仅意味着新的外观和令人兴奋 的新功能。(feature s.)不幸的是，这也意味着一些错误和性能问题。我们拿了两部硬件非常不同的智能手机，在它们上面安装了两个操作系统(operating system)，然后使用多个测试和基准比较了每个操作系统提供的性能。(operating system)这是我们学到的：
Windows 10 Mobile与Windows Phone 8.1 -性能比较(performance comparison)
我们是两个并行进行此比较的同事。我们中的一个人有一个带有Windows Phone 8.1的(Windows Phone 8.1)诺基亚 Lumia 930(Nokia Lumia 930) ，另一个人有一个带有Windows Phone 8.1的(Windows Phone 8.1)Microsoft Lumia 640。这两款智能手机无论是在功能上还是在普及度上，都非常适合Windows Phone 生态系统。(Windows Phone ecosystem)Lumia 930是搭载(Lumia 930)Windows Phone 8.1的功能最强大的智能手机，而Lumia 640是最实惠和最受欢迎的 Windows Phone 设备之一。我们都在罗马尼亚(Romania)，在不同的城市，我们使用不同的蜂窝提供商。在升级到Windows 10(Windows 10) 移动版(Mobile)之前和之后，我们都以相同的顺序运行了相同的测试。
您的智能手机的启动时间(startup time)- 获胜者：Windows Phone 8.1
如您所见，在下面的图表中，Windows 10 Mobile 大大增加了智能手机的启动时间。安装 Windows 10 Mobile时， (Mobile)Microsoft Lumia 640的启动速度慢了 28% ，而Lumia 930在启动过程中的速度慢了 33%。
与 Windows Phone 8.1 相比，Windows 10 移动版对智能手机启动时间的影响非常大。(The impact Windows 10 Mobile has on your smartphone's startup time is very large when compared to Windows Phone 8.1.)
网页浏览速度 - 优胜者：无
许多人每天都在智能手机上浏览网页。这就是为什么我们认为运行快速 Web 浏览基准测试很重要：SunSpider。如下所示，Windows 10 Mobile在(Mobile)Lumia 930上稍慢（6%），在Lumia 640上稍快（2%）。
这些结果不能让我们得出明确的结论。当谈到网络浏览(When it comes to the web browsing) 速度(speed) 时，您在两个操作系统上的体验应该是相似的。(, your experience should be similar on both operating systems.)但是，Windows Phone 8.1和Windows 10 Mobile中的 Web 浏览器不同，它们提供不同的功能。您很可能会更喜欢Windows 10 Mobile中的(Mobile)Microsoft Edge，而不是Windows Phone 8.1中的Internet Explorer。
数据连接速度 - 获胜者：Windows 10移动版(Mobile)
我们用于比较Windows 10 Mobile和Windows Phone 8.1的两款智能手机，在不同的电信供应商上工作，来自不同的地理位置。在Lumia 640上，我们有良好的 4G 数据连接，而在Lumia 930上，我们只有一个 3G 数据连接。我们使用SpeedTest来了解哪种操作系统能够在Internet上提供更快的下载和上传。
在衡量下载速度(download speed)时，没有明显的赢家。我们注意到的差异很小，在常规使用过程中不会被注意到。
(When measuring the upload speed on the Internet, Windows 10 Mobile managed to be faster than Windows Phone 8.1)在测量 Internet 上的上传速度时，Windows 10 Mobile在智能手机和蜂窝连接上都比 Windows Phone 8.1 快。
接下来，我们想测量两个操作系统在运行应用程序、将数据写入RAM 内存(RAM memory)或存储空间(storage space)时提供的性能，以及它们在两个智能手机上使用图形芯片的效率等等。为了做到这一点，我们运行了几个基准测试。
WP Bench基准测试 - 获胜者：Windows Phone 8.1
我们首先在两款智能手机上运行WP Bench基准测试。它测试您智能手机上处理器、图形芯片、内存和存储的速度。首先(First)，让我们看一下CPU测试中得到的结果。在这些测试中，获得较低的分数很重要。分数越低，操作系统(operating system)与智能手机处理器一起工作的速度就越快。
在Lumia 640上，Windows 10 Mobile比Windows Phone 8.1慢 9% ，而在Lumia 930上，慢 3%。
似乎，在处理器功能较弱的低端设备上，Windows 10 Mobile在使用(Mobile)CPU时比Windows Phone 8.1慢。在具有更强大处理器的高端设备上，这种差异在正常使用中没有足够的意义。
然后，我们查看了WP Bench提供的其他测试中获得的结果：内存、存储和图形(storage and graphics)。我们还查看了WP Bench测量的一般分数，以便我们可以比较两个操作系统提供的性能。
如下所示，在Lumia 640上，Windows 10 Mobile比Windows Phone 8.1慢 6% 。
在Lumia 930上，Windows 10 Mobile再次比Windows Phone 8.1慢 6% 。
根据WP Bench基准测试， Windows 10 Mobile 提供的性能比同一智能手机上the performance offered by Windows 10 Mobile is 6% lower than that of Windows Phone 8.1
Multibench 2 基准测试 - 获胜者：Windows Phone 8.1
Multibench 2(Multibench 2)基准测试评估智能手机处理器、数据传输、内存传输和图形芯片的速度。在Lumia 640上，情况如下：
- 在处理器测试(processor test)中， Windows 10 Mobile比Windows Phone 8.1快 3% 。这与在WP Bench CPU测试中获得的结果相冲突，并证实了我们在SunSpider中看到的结果。唯一可以得出的公平结论是，当使用Windows 10 Mobile 与 Windows Phone 8.1(Mobile versus Windows Phone 8.1)时，很可能在使用CPU时没有速度(speed gain)提升。
- Windows Phone 8.1在与存储空间(storage space)之间传输数据方面比 Windows 10 Mobile快 16% 。
- (Windows Phone 8.1)在内存测试中， (memory test)Windows Phone 8.1比 Windows 10 Mobile快 10% 。
- (Windows Phone 8.1)在图形测试中，Windows Phone 8.1比 Windows 10 Mobile快 396%。(Mobile)这个结果听起来难以置信，而且很可能，Multibench 2在(Multibench 2)Windows 10 Mobile中计算其结果的方式需要更新，以便它在Windows 10 Mobile中返回更真实的结果。
在Lumia 930上，情况如下：
- 在处理器测试(processor test)中， Windows 10 Mobile比Windows Phone 8.1快 2% 。
- Windows Phone 8.1在数据传输测试(transfer test)中快了 20% 。
- Windows Phone 8.1在内存测试(memory test)中快了 6% 。
- Windows Phone 8.1在图形测试中快了 362%。同样(Again)，这很可能是Multibench 2中的(Multibench 2)计算错误(calculation error)，需要更新基准，以便更好地反映Windows 10 Mobile中图形芯片的真实性能。
Multibench 2倾向于确认使用WP Bench基准测试获得的一些结果，该基准表明Windows Phone 8.1 在使用智能手机的硬件来提供您需要的性能方面更加高效(Windows Phone 8.1 is more efficient in using your smartphone's hardware to deliver the performance you need)。
AnTuTu基准测试 - 获胜者：Windows Phone 8.1
AnTuTu是另一个评估很多东西的基准，包括：内存、处理器、2D 图形、存储空间(storage space)的速度等等。它将其数据分成许多难以理解的复杂子分数，但它也提供了我们用于比较的一般分数。
如下所示，在Lumia 640上，Windows 10 Mobile比Windows Phone 8.1慢 7% ，而在Lumia 930上，Windows 10 Mobile比Windows Phone 8.1慢 6% 。
AnTuTu 基准测试显示 Windows 10 Mobile 在同一智能手机上提供的性能比 Windows Phone 8.1 低一次。(The AnTuTu benchmark shows one more time that Windows 10 Mobile offers less performance on the same smartphone than Windows Phone 8.1.)
电池时间 - 获胜者：无
我们知道，电池使用时间(battery time)是每个智能手机用户(smartphone user)的一个重要方面。这就是我们运行WP Bench 电池测试(battery test)的原因，该测试对智能手机施加最大压力，直到它耗尽所有电池。如下图所示，在Lumia 640上，Windows Phone 8.1的使用时间比 Windows 10 Mobile多 3 分钟，而在Lumia 930上，Windows 10 Mobile的使用时间比Windows Phone 8.1多 7 分钟。
从这些结果可以明显看出，在电池寿命方面，Windows Phone 8.1 和 Windows 10 Mobile 之间没有重要区别。(there is no important difference between Windows Phone 8.1 and Windows 10 Mobile when it comes to battery-life.)这两个操作系统几乎同时耗尽了智能手机的电池。
结论：Windows Phone 8.1比 Windows 10 Mobile更快(Mobile)
对于大多数用户来说，这应该不足为奇：Windows Phone 8.1是一个高度优化的操作系统(operating system)，即使是最慢的智能手机硬件(smartphone hardware)也能充分利用。Windows 10移动版(Mobile)在达到相同的抛光和性能水平之前还有很长的路要走。作为新功能和一些丢失功能的回报，您会获得更长的启动时间和更低的性能，尤其是在硬件功能较弱的低端智能手机上。
Does Windows 10 Mobile stand a chance against Windows Phone 8.1 in terms of performance?
Windows 10 Mobile was just launched without too much fanfare on Microsoft's рart and many users have started the upgrade process from Windows Phone 8.1. Hоwever, this upgrade won't mean just a new look and new and exciting feature s. Unfortunately, it will also mean a few bugs and performance iѕsues. We tоok two smartphones with vеry differеnt hardwаre, installed both operating systems on them and then compared the performance offered by each оperating system, using sevеral tests and benchmarks. Here's what we have learned:
Windows 10 Mobile vs. Windows Phone 8.1 - The performance comparison
We are two colleagues wh o worked on this comparison in parallel. One of us had a Nokia Lumia 930 with Windows Phone 8.1 and the other had a Microsoft Lumia 640 with Windows Phone 8.1. These two smartphones are very representative for the Windows Phone ecosystem, both in terms of features and popularity. The Lumia 930 is the most powerful smartphone with Windows Phone 8.1 while Lumia 640 is one of the most affordable and popular Windows Phone device s. We are both based in Romania, in different cities, and we use different cellular providers. We both ran the same tests, in the same order, before and after making the upgrade to Windows 10 Mobile.
Your smartphone's startup time - Winner: Windows Phone 8.1
As you can see, in the chart below, Windows 10 Mobile adds quite a lot to the startup time of your smartphone. Microsoft Lumia 640 started 28% slower when Windows 10 Mobile was installed, while Lumia 930 was 33% slower during the startup procedure.
The impact Windows 10 Mobile has on your smartphone's startup time is very large when compared to Windows Phone 8.1.
Web browsing speed - Winner: None
Many people browse the web on their smartphones on a daily basis. That's why we considered it important to run a quick web browsing benchmark: SunSpider. As you can see below, Windows 10 Mobile was slightly slower on the Lumia 930 (by 6%) and slightly faster on the Lumia 640 (by 2%).
These results don't allow us to draw a clear conclusion. When it comes to the web browsing speed , your experience should be similar on both operating systems. However, the web browsers are different in Windows Phone 8.1 and Windows 10 Mobile and they offer different features. It is very likely that you will appreciate Microsoft Edge from Windows 10 Mobile more than Internet Explorer from Windows Phone 8.1.
The speed of your data connection - Winner: Windows 10 Mobile
The two smartphones we have used for comparing Windows 10 Mobile with Windows Phone 8.1, worked on different telecom providers, from different geographical locations. On the Lumia 640 we had a good 4G data connection while on the Lumia 930 we had only a 3G data connection. We used SpeedTest to see which operating system is able to deliver faster downloads and uploads on the Internet.
When measuring the download speed, there is no clear winner. The differences we have noticed are small enough not to be noticed during regular use.
When measuring the upload speed on the Internet, Windows 10 Mobile managed to be faster than Windows Phone 8.1 on both smartphones and cellular connections.
Next, we wanted to measure the performance offered by the two operating systems when running apps, writing data into the RAM memory or the storage space, how efficiently they used the graphics chips on the two smartphones, and so on. In order to do that, we ran several benchmarks.
WP Bench benchmark - Winner: Windows Phone 8.1
We began by running the WP Bench benchmark on both smartphones. It tests the speed of the processor, the graphics chip, the memory and the storage on your smartphone. First, let's take a look at the result obtained in the CPU tests. In these tests it is important to obtain a lower score. The lower the score, the faster is the operating system in working with the smartphone's processor.
On the Lumia 640, Windows 10 Mobile was 9% slower than Windows Phone 8.1 while on the Lumia 930, it was 3% slower.
It seems that, on lower-end devices with less powerful processors, Windows 10 Mobile is slower than Windows Phone 8.1 when working with the CPU. On high-end devices with more powerful processors, the difference isn't meaningful enough to be felt in normal use.
Then, we looked at the results obtained in the other tests offered by WP Bench : memory, storage and graphics. We also looked at the general score measured by WP Bench , so that we can compare the performance offered by the two operating systems.
As you can see below, on the Lumia 640, Windows 10 Mobile was 6% slower than Windows Phone 8.1.
On the Lumia 930, Windows 10 Mobile was, again, 6% slower than Windows Phone 8.1.
According to the WP Bench benchmark, the performance offered by Windows 10 Mobile is 6% lower than that of Windows Phone 8.1 on the same smartphone.
Multibench 2 benchmark - Winner: Windows Phone 8.1
The Multibench 2 benchmark evaluates the speed of your smartphone's processor, data transfers, memory transfers and that of the graphics chip. On the Lumia 640, the situation is as follows:
- Windows 10 Mobile was 3% faster than Windows Phone 8.1, in the processor test. This conflicts with the results obtained in the WP Bench CPU tests and confirms the results we have seen in SunSpider. The only fair conclusion to draw is that, most probably, there's no speed gain in working with the CPU, when using Windows 10 Mobile versus Windows Phone 8.1.
- Windows Phone 8.1 was 16% faster than Windows 10 Mobile in transferring data to and from the storage space.
- Windows Phone 8.1 was 10% faster than Windows 10 Mobile in the memory test.
- Windows Phone 8.1 was 396% faster than Windows 10 Mobile in the graphics test. This result sounds to o good to be true and most probably, the way the Multibench 2 calculates its results in Windows 10 Mobile needs to be updated so that it returns more realistic results in Windows 10 Mobile.
On the Lumia 930, the situation is as follows:
- Windows 10 Mobile was 2% faster than Windows Phone 8.1 in the processor test.
- Windows Phone 8.1 was 20% faster in the data transfer test.
- Windows Phone 8.1 was 6% faster in the memory test.
- Windows Phone 8.1 was 362% faster in the graphics test. Again, this is most probably a calculation error in Multibench 2 and the benchmark needs to be updated so that it better reflects the true performance of the graphics chip in Windows 10 Mobile.
Multibench 2 tends to confirm some of the results obtained with the WP Bench benchmark, which state that Windows Phone 8.1 is more efficient in using your smartphone's hardware to deliver the performance you need.
AnTuTu benchmark - Winner: Windows Phone 8.1
AnTuTu is another benchmark that evaluates lots of things, including: the memory, the processor, the 2D graphics, the speed of the storage space and so on. It separates its data into lots of complicated subscores which are hard to follow but it also provides a general score which we used for comparison.
As you can see below, on the Lumia 640, Windows 10 Mobile was 7% slower than Windows Phone 8.1 while on the Lumia 930, Windows 10 Mobile was 6% slower than Windows Phone 8.1.
The AnTuTu benchmark shows one more time that Windows 10 Mobile offers less performance on the same smartphone than Windows Phone 8.1.
Battery time - Winner: None
We know that battery time is an important aspect for every smartphone user. That's why we have run the WP Bench battery test which stresses the smartphone to the maximum until it drains all its battery. As you can see below, on the Lumia 640, Windows Phone 8.1 lasted 3 minutes more than Windows 10 Mobile, while on the Lumia 930, Windows 10 Mobile lasted 7 minutes more than Windows Phone 8.1.
From these results it is obvious that there is no important difference between Windows Phone 8.1 and Windows 10 Mobile when it comes to battery-life. The two operating systems drain your smartphone's battery in just about the same time.
Conclusion: Windows Phone 8.1 is faster than Windows 10 Mobile
This should not be a surprise to most users: Windows Phone 8.1 is a highly optimized operating system, which makes great use even of the slowest smartphone hardware. Windows 10 Mobile has a long way ahead until it reaches the same level of polish and performance. In return for new features and some lost features, you get a much longer startup time and less performance, especially on low-end smartphones with less powerful hardware.
