Microsoft officially reveals detailed performance evaluation results between Windows 11 and 10

In the past, Microsoft has made impressive claims about the performance of Windows 11 and how the new operating system is faster and better than Windows 10. For example, in 2021, the company claimed that Windows 11 was designed to take full advantage of system hardware. Then in 2023, Microsoft shared details about the performance improvements of Windows 11 compared to the old operating system. Although these claims were not backed up by specific data, many people still believed that the new version of Windows brought positive improvements.

By 2024, Microsoft continued to emphasize the performance difference through a sponsored study that demonstrated Windows 11 was significantly faster. However, like most of the general claims before, the data was not presented clearly.

This week, Microsoft shared new numbers based on December 2024 testing in a support document. Here are Microsoft's official performance claims for Windows 11 versus Windows 10:

1. Windows 11 PCs can get up to 2.7 hours more battery life than Windows 10 PCs
2. Windows 11 PCs are up to 2.3x faster than Windows 10 PCs
3. Windows 11 PCs are up to 3.2 times faster at browsing than Windows 10 PCs
4. Windows 11 PCs perform up to 2x faster with Microsoft Office than Windows 10 PCs

So if you ask Microsoft, they'll say Windows 11 is better than Windows 10 in every way, from web browsing, to Office usage, to battery life, to overall performance. The company notes that these results are "based on 95% confidence intervals" for each operating system across multiple tests. Microsoft has also ruled out outliers.

To achieve these numbers, Microsoft used the following testing criteria:

1. Battery life: Tested playing a 1080p 24 fps MP4 video file locally in Windows Media Player until the battery drained 90%. During the test, all settings were left at default except for the screen brightness which was set to 150 nits and the Auto-Brightness feature was disabled. Wi-Fi was connected to the network.
2. Regarding the "2.3 times faster" claim: Using results from Geekbench 6. For web browsing, Speedometer is used, although Microsoft does not mention the version. And finally, for Office, the Procyon Office productivity tool is used.

Interestingly, Microsoft is only using Intel CPUs (the company also recently recommended Intel chips for Windows 11 Pro PCs).

This time, Microsoft got "smarter" by "testing the performance, battery life, and app capabilities of some Windows 11 PCs against some Windows 10 PCs," with Windows 10 PCs using 6th, 8th, and 10th generation Intel Core chips and Windows 11 PCs using 12th and 13th generation Intel Core chips.

So Microsoft is essentially admitting that the underlying hardware does play a big role in their claims. But to be fair, there's also no way to run Windows 11, at least officially, on unsupported PCs to make a direct comparison.

You can find support documentation with full battery test results in this article on the Microsoft website .

Micah Soto

Update 28 June 2025