Table of Contents
USB-C 3.2 与 USB-C 2.0
测试设置
运行测试
解释结果
Buying the Right Android Device
Home Mobile Tutorial Android Phone How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

Jun 19, 2024 pm 12:22 PM

从 USB-C 2.0 到 USB 3.2 的跳跃看似很小,但实际上,它们在 Android 设备之间的数据传输方面有着天壤之别。这种差异很容易被忽视——USB-C 标准可以帮助您做出更明智的购买,尤其是当您在两个类似的选择之间徘徊时。

USB-C 3.2 与 USB-C 2.0

所有 USB-C 端口可能看起来都很相似,但它们的作用并不相同。如果拆下任何 USB-C 连接器,您将看到 24 个导电引脚。并非所有这些引脚都是活动链路(用于供电或数据传输),但 USB-C 2.0 的活动引脚少于 USB-C 3.2。更活跃的链接意味着更快的数据传输的额外积分。

得益于这些额外的链接,USB-C 3.2 可以提供高达 20Gbps 的数据传输速度,而 USB-C 2.0 的数据传输速度仅为 480Mbps。 USB-C 3.2 技术于 2017 年 9 月推出,取代了 USB 3.1 标准。您可以在大多数优质 Android 手机和平板电脑中找到它。另一方面,经济型和中端设备仍然停留在 USB-C 2.0 上。

正如我将通过测试演示的那样,如果您经常移动数据,USB-C 3.2 是必备的。始终值得关注手机或平板电脑的 USB 规格。有时,即使是高级型号也不使用最新的 USB-C 标准。可以说 USB 会变得很复杂。

测试设置

理论上,USB-C 3.2 的速度至少比 2.0 快 10 倍。在现实环境中测试这些速度似乎很简单。只需将测试文件传输到设备或从设备传输测试文件,并记下所用的时间。

但为了使测试可靠,我需要确保没有存储瓶颈阻碍传输。我使用两台 Android 设备和一个便携式三星硬盘来进行测试设置。以下是每个的规格。

  1. 三星 Galaxy Tab S7:USB-C 3.2 和 UFS 3.1
  2. Infinix Zero X Neo:USB-C 2.0 和 UFS 2.1
  3. 三星 SM 841 便携式 SSD :读写速度高达 500Mbps

我使用 Play 商店提供的跨平台磁盘测试应用程序在两台 Android 设备上运行了内部存储速度测试。存储测试为我提供了手机和平板电脑的最大内部读写速度。它们的内部速度分别达到近 2Gbps 和 7Gbps。

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

即使两种设备运行不同的 UFS 标准,只要数据传输速率远低于最大内部存储速度,就不会有瓶颈。我还使用相同的 USB 电缆进行两次传输。

运行测试

一切设置完毕后,就可以运行实际测试了。首先,我将一个 5GB 的测试文件从外部驱动器传输到 Android 手机。平均速度保持在 350Mbps 以下,通过 USB-C 2.0 传输需要近 120 秒才能完成。

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

然后,我将外部驱动器连接到我的平板电脑,并将相同的文件复制到平板电脑的内部存储中。使用 USB-C 3.2,传输仅需 25 秒左右即可完成。传输速率徘徊在1.2Gbps左右。

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

两种速度都远低于瓶颈阈值。

现在让我们尝试将相同的文件发送回外部驱动器。我从Infinix手机上复制了5GB文件,花了1分40秒。其平均速度为 360Mbps,与第一次 USB-C 2.0 测试大致相同。

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

接下来,我将相同的测试文件从平板电脑发送到外部驱动器。速度为 2.1Gbps,传输时间约为 15 秒。

How Much Faster Is USB-C 3.1 vs 2.0 in Android Phones?

传输速率再次远低于既定参数,因此两个设备都没有遇到瓶颈。

解释结果

不出所料,USB-C 3.2 远远胜过 USB-C 2.0。当我从外部驱动器发送文件时,USB-C 3.2 平板电脑几乎比 2.0 手机快四倍。在第二次测试中,性能差异更加显着——USB-C 2.0 甚至无法接近。 USB-C 3.2 比 USB-C 2.0 快 20 倍!

Even on the surface, the contrast is stark. It adds up if you move large files back and forth often, say, for photo or video editing. If you ever have to migrate everything to another device, an Android with USB-C 3.2 will give you faster backup and restore operations. Besides data transfer, playback from your external media should be smoother thanks to the faster read speeds.

Buying the Right Android Device

Manufacturers often release premium phones alongside a “light” version. You’ll typically find USB-C 3.2 and USB-C 2.0 in these pairs. Take the OnePlus 12 and its sibling, the OnePlus 12R, for example. OnePlus doesn’t advertise it, and it’s easy to miss on the specification chart, but the OnePlus 12 has 3.2, and the OnePlus 12R variant comes with USB-C 2.0.

Mid-range and entry-level Androids typically feature USB-C 2.0. A good way to find USB-C 3.2 on the cheap is older flagships from as far back as 2017. These older flagship phones often fall into the same price range as newer mid-range phones. So if you’re considering an old flagship Android, USB-C 3.2 is yet another perk you get.

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