System Performance

Another Snapdragon 845 device, another system performance section to dwell into. By now following the Galaxy S9 review and Mi MIX 2S review we should have some clear expectations of how the OnePlus 6 should perform. In my MIS 2S review in particular I was very vocal about how superbly the phone performed in terms of performance, and attributed this to a great software implementation on the side of SoC. The OnePlus 6 very much deserves the same praise as it not only has the same extraordinary snappiness, but actually ever so slightly manages to beat the MIX 2S in some cases.

PCMark Work 2.0 - Web Browsing 2.0

Starting off with PCMark’s Web Browsing test, the OnePlus 6 is very much within the top scorers in terms of performance.

PCMark Work 2.0 - Video Editing

The video editing test again is mostly performing as expected.

PCMark Work 2.0 - Writing 2.0

In the Writing 2.0 test which uses Android APIs and does operations such as text editing and PDF rendering the OnePlus 6 actually manages to take the top spot in terms of performance. This test alone correlates extremely well with overall system performance of a phone and the OP6 taking first place is indeed very well representative of the phone’s feel.

PCMark Work 2.0 - Photo Editing 2.0

Photo editing test, alongside the Mi MIX 2S also takes top spots among current devices.

PCMark Work 2.0 - Data Manipulation

The data manipulation score averages out among top Snapdragon 845 devices.

PCMark Work 2.0 - Performance     

Finally the total score matches the Mi MIX 2S. There’s not much more to say here other than Qualcomm’s scheduler improvements in the S845 BSP have really paid off this generation and this directly results in excellent real-life performance.

Speedometer 2.0 - OS WebView

WebXPRT 3 - OS WebView

The web tests showcase pretty much identical performance to the Mi MIX 2S which in turn both slightly outperform other S845 devices such as the Galaxy S9 and LG G7.

UI Fluidity

Over the past few months there’s been more outspoken discussions about Android speed tests versus actual device fluidity. In general the latter is extremely hard to quantize into a figure and there will always be corner cases or outliers that will probably perform better or worse when comparing between devices.

In the context of the OnePlus 6 as well as Snapdragon 845 devices I’ve looked more into what actually is different between them and what is seemingly causing the OP6 and MIX 2S to perform better than, say the Snapdragon Galaxy S9.  Looking deeper into the kernel it looks like OnePlus and Xiaomi are both using a newer kernel build with more scheduler modifications than the kernels running on the S9 and G7. The details here go quite low level and is out of the scope of any public article, but the effects can be easily seen.

OnePlus 6 vs Galaxy S9+ (S845) Jitter Test

In the UIBench Jitter test we see the difference between the OnePlus 6 and the Galaxy S9 – the latter has a lore more inconsistent rendering frame-times. While in this test both have very clearly great frame-times well under 16.6ms – having more consistent frame times in turn can avoid random workload events that might push frame times over the deadline and result in dropped frames. The OnePlus 6 so far has been the best device in this particular test – only the Pixel phones come near to it but they don’t seem to have the same consistency over time.

Overall system performance of the OnePlus 6 deserves the same praise as the MIX 2S – both devices are currently the very best and fastest on the market and you will be absolutely not disappointed in their performances.

Software UI - OxygenOS 5.1 GPU Performance


View All Comments

  • Teckk - Friday, July 27, 2018 - link

    Battery is not user replaceable, needs surgery. Do flagships have user replaceable battery these days? Reply
  • SpaceRanger - Friday, July 27, 2018 - link

    Sadly, no. :( I do not like the fact I can't easily replace the battery with these newer flagship phones. Reply
  • PeachNCream - Friday, July 27, 2018 - link

    It's reasonable to assume that a glass back always implies a surgical procedure for battery replacement. User-removable panels tend to flex and are usually held in place with some sort of friction clips which just don't work when glass is selected as the material of choice. Reply
  • James5mith - Friday, July 27, 2018 - link

    The only thing I wish for on my OP6 is the google dialer. Reply
  • TheCurve - Friday, July 27, 2018 - link

    Great review, Andrei! Thank you! Reply
  • Xex360 - Friday, July 27, 2018 - link

    Notch=useless phone, I still don't understand companies copying only the rubbish that comes from Apple, why don't they copy their performance, their screen quality... Etc. Worse for this phone I often found the S9 a far superior phone with much better screen and design (you get the fragility of glass but with the benefit of wireless charging), one of the best cameras out there... Etc for nearly the same price. They should get their act together and build a phone for more reasonable price and remove the stupid notch. Reply
  • Andrei Frumusanu - Friday, July 27, 2018 - link

    As I've explained in the review, I've found the notch to not be detrimental and such a reaction seems pure overreaction. Reply
  • Xex360 - Saturday, July 28, 2018 - link

    What bothers me the most isn't the notch as such (even though it's awful especially in person at least for me), removing jack port is just evilly stupid, but why lot of Android manufacturers copy it from Apple (small players excluded, I can see some benefits for looking like an iPhone, I yes I know Apple weren't the first to do it), why not instead (in this case) copy the X's excellent screen, wireless charging, faster experience I'm not talking about the SOC (even though Samsung should be able to compete) but by just rooting and removing some apps I made lots of Android phones much faster. Coming from OnePlus I was even more disappointed, I was waiting for some special not just copying the worse of others for a high price, especially that you can get the SO for just 30euros more. Reply
  • timecop1818 - Sunday, July 29, 2018 - link

    > faster experience I'm not talking about the SOC (even though Samsung should be able to compete)

    because it's Android, its just garbage by design. And the real problem is software "developers" who write apps, using shitty cross-platform toolkits to run it on both apple and Android.

    you know what cross platform actually means in reality? "Shitty on every supported platform".
  • Dazedconfused - Sunday, July 29, 2018 - link

    I don't get this comment. There are more than a few comparisons between recent Android phones and the X
    in everyday use situations that show Android being at least as fast in most tasks (even with a synthetically slower SOC)

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