SoC Performance

While we’re ready to move on to newer benchmarks for 2016, our system performance benchmarks from 2015 are still going to provide a pretty good idea for what to expect from the Galaxy S7 and Snapdragon 820 by extension. For those that are unfamiliar with what the Snapdragon 820 is, I’d reference our previous articles on the Snapdragon 820.

In essence, we’re looking at a 2x2 CPU configuration with 2.15 GHz Kryo cores for the performance cluster, and 1.6 GHz Kryo cores for the efficiency cluster. Binding the two clusters together are some power aware scheduling at the kernel level and a custom interconnect to handle coherency between the two clusters. Memory is also improved relative to the Snapdragon 810, with a bump to LPDDR4-1866 over the former's LPDDR4-1600. Of course, there's a lot more to talk about here, but for now we can simply look at how the Snapdragon 820 compares in our benchmarks.

Update: As we've had a few questions on the subject, I just want to clarify browser testing. Samsung's stock browser was not included with our Verizon-branded sample phone, nor is it possible to install it at this time. As a result we are unable to test the performance of Samsung's browser. The Verge reports that this is a Verizon decision and that all Verizon phones will be shipping like this; so for these phones Chrome is the de-facto stock browser.

Kraken 1.1 (Chrome/Safari/IE)

Google Octane v2  (Chrome/Safari/IE)

WebXPRT 2015 (Chrome/Safari/IE)

Starting off with our web benchmarks, we can see that in the time since our initial testing of the Snapdragon 820 MDP there have been some major improvements to how well Chrome is optimized for Kryo. As a result we're seeing results that are almost comparable to Snapdragon Browser in Chrome.

Overall then the Galaxy S7 and its Snapdragon 820 SoC won't top the charts on web benchmarks - Apple still holds an edge here - however the Galaxy S7 puts up a solid fight. The one drawback here is that the Mate 8 and its Cortex A72 CPU seems to have the edge over the Galaxy S7.

Basemark OS II 2.0 - System

Basemark OS II 2.0 - Memory

Basemark OS II 2.0 - Graphics

Basemark OS II 2.0 - Web

Basemark OS II 2.0 - Overall

In Basemark OS II the combination of a better GPU, better NAND, and better single thread CPU performance seems to be enough for the Galaxy S7 to approach the iPhone 6s Plus in overall performance. While the system benchmark shows that Kryo isn't quite going toe to toe with Twister, the Adreno 530 helps to narrow the gap in the graphics test.

PCMark - Web Browsing

PCMark - Video Playback

PCMark - Writing

PCMark - Photo Editing

PCMark - Work Performance Overall

In PCMark, we can see that the Galaxy S7 is mostly comparable to the Galaxy S6. However major improvements in areas like GPU performance help to give it an overall advantage relative to the Galaxy S6 in the photo editing test. Given that this is basically a test of API-level performance, it's likely that Samsung's frameworks and governor settings lead to mostly similar performance in these tests.

Overall, the Snapdragon 820 appears to provide a pretty healthy bump in performance over almost every SoC seen in 2015, although it's hard to declare a clear winner when comparing it to Apple's A9 or Huawei's Kirin 950. If you glanced at the battery life graphs and the performance graphs above it's pretty obvious that Qualcomm has made some enormous strides here. While not quite going from zero to hero, Qualcomm has come close, and that definitely deserves some credit.

NAND Performance

If you think about the memory hierarchy, while RAM and cache are important, at the end of the day the most important aspect is the base storage. Even if you have infinite RAM and cache, if your storage is sufficiently slow the user experience is going to be painful for at least the first time you have to load something.

In order to test this, we use our standard test of AndroBench with 4 KB and 256 KB reads and writes for random and sequential tests. I went ahead and did some digging around to figure out exactly what it is we’re testing in the Galaxy S7, and it turns out that while the Galaxy S7 storage solution is similar to what’s in the Galaxy S6 and S6 edge, it isn’t quite the same. The Galaxy S7 UFS storage identifies itself as the KLUBG4G1CE-B0B1, which looks to be in the same family and appears to have been released at pretty much the same time as the Galaxy S6 storage solution, but the model number isn’t quite the same.

Internal NAND - Sequential Read

Internal NAND - Sequential Write

Internal NAND - Random Read

Internal NAND - Random Write

Looking at the performance results, we can also see that the Galaxy S7 is pretty similar to the Galaxy S6 in storage performance at a high level. Interestingly enough despite using full disk encryption on the Galaxy S7, we don’t really see a noticeable degradation in performance relative to the Galaxy S6 which is good to see considering the number of Android devices that do have noticeable performance effects when enabling FDE.

Battery Life GPU Performance


View All Comments

  • theduckofdeath - Tuesday, March 8, 2016 - link

    I expect them to do a comprehensive test of the Exynos model, as that one seems to be the one they're going to sell everywhere not-USA. Reply
  • NonSequitor - Tuesday, March 8, 2016 - link

    Samsung has proven that they can build really great hardware. Great. Now can we go back to getting a GPE version of their phones? I love my Nexus 6's user interface. Every time I try to help a friend with a Samsung phone it feels like the interface has been hit with an ugly stick and all the useful little things have been taken away. But the Nexus 6 hardware is only 'meh', and the 6P isn't better enough to justify a change. If the S7 were a Nexus device I'd be saying TAKE MY MONEY right now. Reply
  • R. Hunt - Tuesday, March 8, 2016 - link

    Funny, that's exactly what I think everytime I've got to deal with stock Android: "Where have all the features gone?". Reply
  • Cooe - Thursday, March 24, 2016 - link

    Lol what you call "features" I call terrible gimmicks. Stock Android FTW. Reply
  • theduckofdeath - Tuesday, March 8, 2016 - link

    No one was interested in the GPE models. Samsung has had no interest in being a Nexus manufacturer for half a decade. That's why. Like it or not, buyers wants the smart features pre-installed at the factory. Reply
  • lopri - Tuesday, March 8, 2016 - link

    Throughout the review, Mr. Ho refers to the Note 5 but I do not see any data pertaining to the Note 5 in the charts?

    I agree with him about the camera hump. I had no issue with the S6's camera hump, both aesthetically and practically. I think this provides an opportunity in which tech media should take a pause and self-reflect. In every freaking review of the S6/Edge, reviewers incessantly cried over that hump as if Samsung committed an unspeakable sin. It looks like Samsung took the criticism to heart, but unfortunately the criticism was an unwarranted one to begin with. Reviewers should think for themselves before following the fellow herd parroting sensational nitpicking on a non-issue.
  • Ratman6161 - Tuesday, March 8, 2016 - link

    The note 5 will perform essentially the same as an S6/S6 edge. I've got a Note 5 and personally I'm not seeing anything in the new generation that would make me lust after an upgrade. Reply
  • R. Hunt - Tuesday, March 8, 2016 - link

    Well, at least they address the issue in the right way IMHO: but making a only so slightly thicker phone and taking the opportunity to put a bigger battery in it. Reply
  • ah06 - Tuesday, March 8, 2016 - link

    "In the interest of providing another data point and some validation of our testing results, I ran both devices through our old web browsing test to see what the results would be for something that should be display-bound. Here, it’s obvious that the Galaxy S7 edge holds a significant lead over the iPhone 6s Plus"

    But the actual delta in both cases is exactly the same! 53 mins!
    Am I calculating this wrong?

    9:58 - 9:05 = 53 mins
    14:03 - 13:10 = 53 mins

    So the delta in the 2013 and 2016 tests is exactly the same
  • Andrei Frumusanu - Tuesday, March 8, 2016 - link

    Those are decimal hours 9.58h = 9 hours 34 minutes. Reply

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