Epic Games granted us a huge wish and released Epic Citadel for Android devices publicly this week, and included a benchmark inside. Getting Epic Citadel for Android and thus a benchmark of a real game engine (Unreal Engine 3) running atop Android has been a longtime wish, and we immediately started testing some devices. Epic claims to have updated visuals for the Android Epic Citadel release, and correspondingly released an update for the iOS version, although the iOS version still lacks a benchmarking mode. 

The visuals inside Epic Citadel are impressive, which almost goes without saying. Performance walking around the map is also smooth, almost too smooth. I suspect Epic spent a lot of time optimizing the Android version for optimal performance on a wide set of hardware. Keep in mind that Epic Citadel is designed more as a proof of concept for developers, and to prove that Unreal Engine 3 can be performant across a wide range of hardware.

The Android version of Epic Citadel includes support for both ARM devices and x86, which lets us test it out on Intel's Medfield platform with a RAZR i in a native way alongside a suite of other Android devices. I grabbed a handful of current devices and N-1 generation devices to see how effective of a benchmark Epic Citadel's new mode proves to be. There's a menu option exposed by the drop down, which allows users to select between High Quality and High Performance modes, and below it, rendering resolution percentages if you want to set a render target smaller than the display (for example how the iPad with Retina Display initially rendered). To make the test as taxing as possible I set High Quality even on devices which defaulted to High Performance, and made sure resolution was set to 100% of native.

Epic Citadel for Android - High Quality, 100 Percent Resolution

Unfortunately Epic Citadel for Android is already running at vsync on most modern devices most of the time. Watching a run through on devices like the HTC Droid DNA or Butterfly, which are 1080p, it's amazing how much of the benchmark is right against vsync. There really is only one outdoor scene that is taxing enough to bring the device's FPS down into the low 50s and high 40s, which brings that average down below 60. If we're already at vsync on Fusion 3 hardware which is shipping today, that means future devices are going to be even more constrained running the same benchmark. Even Nexus 10 spends much of its time against vsync despite rendering to a positively huge WQXGA display natively. 

My conclusion is really that either Epic waited too long to release Epic Citadel with a benchmark, and now the assets are nowhere near taxing enough, or this is primarily designed as a benchmarking mode to showcase how well UE3 runs on current hardware. Given the purpose of Epic Citadel, I'd say the latter is more of a credible story. While I'm glad we finally have a proper UE3 benchmark to use on Android, I doubt we'll be able to glean much from running it on next-generation devices and SoCs. 

Source: Play Store, Epic Blog

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  • lmcd - Friday, February 01, 2013 - link

    Mali 400's deficiencies have been thoroughly noted and addressed in the T-series Reply
  • SilverEyes - Thursday, January 31, 2013 - link

    Device: Samsung SGS I9000 @ stock CPU, running 4.2.1 by pawitp
    build.props set to Nexus S for install from app store
    Resolution: 800x480 (100%)

    High Performance (just one run):
    Average FPS: 33.7

    High Quality:
    1st Run: 23.3 fps
    2nd Run: 20.5 fps
    3rd Run: 18.4 fps

    Qualitatively: I'm surprised how well this ran. Far smoother than Splice for instance, which is choppy on my phone at best.

    Great framerate given the age of the hardware, only occasional stuttering.
    Reply
  • Lonyo - Thursday, January 31, 2013 - link

    I noticed on the Google Play store that it shows 134MB download for my Galaxy S3 and Transformer TF101, but only a 94MB download for my Galaxy Tab 2 7".

    Is it the same benchmark being run on each device, or is it different versions of the "game"?
    Reply
  • CeriseCogburn - Friday, February 01, 2013 - link

    Good question - shows 41.07 mb on my Galaxy Note 2 from the google play store once installed...

    If I go full webpage I get 153mb download from google play.
    Reply
  • UpSpin - Thursday, January 31, 2013 - link

    As long as it still runs on a HTC Desire / Nexus One, it's not worth any further investigation.
    Sure, it only runs at 11 FPS average according to the benchmark, but that's way too good for my 'ancient' smartphone.
    And rendering such static scenes is always less demanding than a moving character, or even several characters (battle) with lots of additional details and effects. So I don't really see a use in this except advertising for Epic, which, however, isn't an indicator for the quality of real games, because of the missing effects/characters/moving objects.
    Reply
  • nathanddrews - Thursday, January 31, 2013 - link

    Average of three runs:

    T-Mobile Samsung Galaxy S3 (100% resolution 1280x720)
    Quality 42.3fps
    Performance 46.2fps

    Acer Iconia A100 (100% resolution 1024x552)
    Quality 32.5
    Performance 36.8
    Reply
  • rs2 - Thursday, January 31, 2013 - link

    The app crashes for me whenever I try to access the 'Settings' section. Device is a Sony Xperia S.

    Any ideas?
    Reply
  • felipetga - Friday, February 01, 2013 - link

    My Acer Iconia scored 33.7 fps, High Quality @ 1024x552. Running regular Android 4.03. Tegra 2 still hanging on its own... sort of... Reply
  • RaistlinZ - Friday, February 01, 2013 - link

    Sprint HTC EVO 4G LTE

    Avg: 45.4
    High Quality
    1028x720
    Reply
  • Krysto - Friday, February 01, 2013 - link

    This just shows how old the Epic Citadel demo is. Most devices already reach 60 FPS at native resolution on max quality with it. I don't know why they even bother porting it at this point. They should've just worked on a new one based on Unreal 4, and then launch for both iOS and Android in the same time. This was pointless. Reply

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