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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  • Andrei Frumusanu - Friday, September 13, 2019 - link

    You're welcome to point out and name the actual tests you have problems with.

    Xiaomi has a history of cheating in benchmarks - I'm using obfuscated application IDs that circumvent such detection and thus the numbers published here represent the actual app performance of the phone.
    Reply
  • Redmyth79 - Friday, September 13, 2019 - link

    I would love to challenge you on that as I'm a 1st time buyer of Xiaomi being the Mi 9.
    Again I've owned Galaxy S4-S9+ Note 9, LG G2-G4, V20-30, IPhone 6plus-8plus yet the Mi 9 makes small work of all them including the iPhone XS Max in performance!
    I also have posted my results on my YouTube which that can't be cheated as I even video recorded a AuTuTu 8.02 system test which I got 440,701 and sense then I've gotten higher.
    No BSing there
    Reply
  • Andrei Frumusanu - Saturday, September 14, 2019 - link

    I accept your challenge. You play the AnTuTu card, you lose. Reply
  • Ian Cutress - Saturday, September 14, 2019 - link

    AnTuTu is the laughing stock of benchmarks. The minute someone tries to justify their position with an AnTuTu score, you know not to take them seriously. Reply
  • Korguz - Saturday, September 14, 2019 - link

    if you really have owned all those phones, then either, you dont take care of them, and they get broken fast, and need to be replaced, you are one of those that HAS to upgrade for no reason other then for bragging rights, or, and this is tied in with the 2nd reason, more money then you know what to do with :-) Reply
  • Jon Tseng - Sunday, September 15, 2019 - link

    No links yet to your supposed data? Reply
  • Cellar Door - Friday, September 13, 2019 - link

    The matter a fact here is that Andrei is the best and most technical phone reviewer for the past few years - yet here you are with anecdotal at best claims, and insulting tone. Reply
  • NXTwoThou - Friday, September 13, 2019 - link

    I finally gave up my Lumia 950 for a Mi9 8/256 this year for less than what I paid for my 950 back in the day. Xiaomi has some really odd things that go on as they have three main roms available and the bootloader can't be unlocked for a set period of time. Once you do unlock it, xiaomi.eu uses the china beta roms and strips out the China specific things, removes all ads, and finishes translation. My phone became a whole other beast after using the weekly xiaomi.eu roms. We got moved to Android 10 August 8th. OIS, waterproofing, and a non-slippery back are the only things I feel that need refinement. Reply
  • MrSpadge - Friday, September 13, 2019 - link

    Same here, finally switched from Lumia 950 to a Mi9. I've got two points to add:

    - I've toned the sharpening down one notch in the camera app, as it was producing halos around edges

    - I've bought the international version after reading that the Ads can be disabled. First I had none, but after using it for 2-3 months annoying Ads started to pop up. It happens less than each day on average, but when it happens it's really annoying. You tip something and the phone does not react. Brain says "WTF" and after a short break (depending on network speed) the Ad is shown, sometimes as still image and sometimes as videos with loud sound (depending on your current setting). This interrupts the work flow and maybe also the environment and really, the least thing I'll do with whatever is advertised is to buy it. Already tried different ways to turn this off, depending on forum suggestions, but was not yet successful.
    Reply
  • NXTwoThou - Friday, September 13, 2019 - link

    I've been on .eu rom since I was allowed to unlock. The only ads I've ever seen since are very random with the built in music app and cleaner. Neither of which I use often enough for it to be an annoyance. I don't see any sharpening settings in the built in camera app. Are you using GCam? Reply

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