System Performance

Following our Snapdragon 855 device overview, we should be relatively familiar with how the Xiaomi Mi9 performs. The chipset is by now a very well known component and various devices with the silicon will only ever differ by the software stack implementation by the vendor.

In Xiaomi’s case in the Mi9, I didn’t see anything particularly standing out for the phone, performing quite well but also not particularly distinguishing itself as being among the best nor worst performers amongst its Snapdragon 855 siblings.

PCMark Work 2.0 - Web Browsing 2.0 PCMark Work 2.0 - Video Editing PCMark Work 2.0 - Writing 2.0PCMark Work 2.0 - Photo Editing 2.0PCMark Work 2.0 - Data ManipulationPCMark Work 2.0 - Performance

Overall in PCMark, we see the Mi9 also perform averagely but very much within the top tier devices this year. It’s not quite as fast as the Galaxy S10 (S855) or the odd device like the RedMagic 3, but it performs better than say the LG G8.

Speedometer 2.0 - OS WebViewWebXPRT 3 - OS WebView

Similarly, to the PCMark results, the Mi9 ends up quite in the middle of the Snapdragon 855 pack in the web browsing JS tests.

Overall, my subjective experience with the Mi9 was excellent. Xiaomi seemingly very well integrated the OS-side boosters and the phone is very responsive when opening or switching between applications. Again I have to mention that while this performance doesn’t really stand out much amongst other flagship devices this year, it’s an incredible showing at the price range that the Mi9 is at. Other mid-range phones in this bracket, such as say the Pixel 3a and similar just can’t really compete with the Mi9.

Introduction & Design Machine Learning Inference Performance
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  • Redmyth79 - Friday, September 13, 2019 - link

    I'm going to call Bullshit on your scores because I have the Note 9, S9+ and the Xiaomi Mi 9 EU Global ROM and my scores including FPS and a lot of things you have posted here do not come close to the performance I'm getting.
    My Mi 9 best every phone you have up there in most every one of those test.
    It lost to the ROG 2 and Black Shark 2pro in a couple area's but very limited. Matter fact though, what makes anybody with a ounce of common sense know that this testing is completely fabricated bullshit is the fact that the S10+ is up top or near the top in a lot of spots because the S10+ has the worst testing of just about any 855 chipped phone. Furthermore you have the S9+ rated higher in certain test that I personally ran and there are official results from those very testing sites saying your results are off by more then a 1000 points in some areas with the S9+ even.
    I don't get the sham going on here but it just ruined any credibility this site ever had!
  • NXTwoThou - Friday, September 13, 2019 - link

    Are you still using the stock rom? I'm pretty sure AnandTech didn't bother getting the latest greatest(and probably hasn't had it long enough to get unlocked or I know my phone had a huge performance difference after a few updates.
  • Andrei Frumusanu - Friday, September 13, 2019 - link

    It's running the latest OTA on a commercial EU unit, build date July 9th. The phone's been out long enough that didn't go finishing for nonpublic firmwares.
  • Redmyth79 - Friday, September 13, 2019 - link

    What update? What's the number 10. What?
    I currently have and have not complaints except for the fact that around the 10.2.26 update I lost the ability to control saturation, sharpness and contrast.
  • Andrei Frumusanu - Saturday, September 14, 2019 - link

  • Redmyth79 - Friday, September 13, 2019 - link

    So you understand what I'm calling bullshit on is the performance charts with GPU and CPU test with the many test. The one thing the Xiaomi Mi 9 truly excels at is CPU, GPU and overall speed and gaming experience always running at the top of any flagship out. The only one I've seen close is the OnePlus 7 pro.
    As far as your end review, I saw your camera info, you are wrong in a few areas here as well.
    The Xiaomi Mi 9 does have a advanced EIS that is not like others but is actually a advanced form of OIS with a extra sensor that watches the movement of the OIS to give it more accurate and faster info to make proper adjustments to make the Mi 9 one of the most stable of all current smartphones in 4k@30 video.
    Any YouTube reviews and also dxomark will show this without question up amongst all the rest.
    If I can post the link to the Mi 9's EIS I will do it here for those to read up on it.
    Last, I don't have a issue with low light pics and most reviews show the same bit it's not of the level of the Note 10+, P30 pro or Pixel without Gcam for night shots.
    Of course you have to put in the http/www part on that link.
  • porcupineLTD - Friday, September 13, 2019 - link

    A new fanboy arrives.
  • Redmyth79 - Friday, September 13, 2019 - link

    Fanboy of what I've always been a Galaxy fanboy sense I've owned all from S4-S9+ but the Mi 9 is truly a game changer to me
  • NXTwoThou - Friday, September 13, 2019 - link

    As a fyi, I've taken some rather craptackular shots with my Mi9. I've also taken some astoundingly good ones. Previously I was Lumia 950 and 920 before that. I'd been used to relatively good cameras on my phones. Lack of OIS is a big deal and the EIS doesn't make up for it. I have some health issues that cause trembles, my older phones it made zero difference, with the Mi9 it's very apparent when I'm having a bad day. Even when I'm not having a bad day I can still get bad shots where the same environment had previously been no issue for my previous phone.

    The Mi9 is an insanely good value. I love my phone. I just recognize the issues presented in the article are valid.
  • Jon Tseng - Sunday, September 15, 2019 - link

    If you have good benchmarks and data post them rather than ranting.

    Talk is cheap if you're too afraid to back it up.

    Anandtech has years of best in class work around mobile performance analysis. Forgive me if I give them the benefit of the doubt.

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