Networking and Storage Performance

We have recently started devoting a separate section to analyze the storage and networking credentials of the units under review. On the storage side, one option would be repetition of our strenuous SSD review tests on the drive(s) in the PC. Futuremark's PCMark 8 has usually helped us avoid that overkill, thanks to a storage bench where certain common workloads such as loading games and document processing are replayed on the target drive. Unfortunately, our LIVA x2 sample (which started with 18 out of 22.4 GB free upon fresh boot and ended up with around 8 GB free after installing all the Windows 8.1 updates) consistently errored out when running the storage bench (likely due to the non-availability of enough free space in the primary disk). In order to get an idea of the performance of the eMMC storage, we ran a couple of artificial benchmarks, ATTO and CrystalDiskMark, on the OS drive.

The numbers are not as good as even an entry level SSD, but, given the price of the system, it is hard to complain. Users must keep in mind that the choice of eMMC storage and soldered main memory makes it closer to a tablet rather than a full-fledged expandable PC. In particular, one should not expect to install a large number of programs as space is likely to run out. eMMC also requires some free space to keep operating efficiently.

On the networking side, we restricted ourselves to the evaluation of the WLAN component. Our standard test router is the Netgear R7000 Nighthawk configured with both 2.4 GHz and 5 GHz networks. The router is placed approximately 20 ft. away, separated by a drywall (as in a typical US building). A wired client (Zotac ID89-Plus) is connected to the R7000 and serves as one endpoint for iPerf evaluation. The PC under test is made to connect to either the 5 GHz (preferred) or 2.4 GHz SSID and iPerf tests are conducted for both TCP and UDP transfers. It is ensured that the PC under test is the only wireless client for the Netgear R7000. We evaluate total throughput for up to 32 simultaneous TCP connections using iPerf and present the highest number in the graph below.

Wi-Fi TCP Throughput

In the UDP case, we try to transfer data at the highest rate possible for which we get less than 1% packet loss.

Wi-Fi UDP Throughput (< 1% Packet Loss)

The Realtek 8821AE 1x1 802.11ac / BT 4.0 combo is no stranger to our testbed. We have seen it before in our GIGABYTE BRIX Pro as well as BRIX Gaming reviews. It is also the same WLAN card used in the ASRock Beebox. Unfortunately, the performance of the mPCIe card in the LIVA x2 is similar to that of the Beebox, and nothing to write home about - this could be due to a number of factors such as host CPU limitations (Braswell vs. Core-series) and/or antenna placement.

Performance Metrics - II HTPC Credentials
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  • BrokenCrayons - Tuesday, August 25, 2015 - link

    Hi BMN! Not everyone out there is concerned with video playback for a system like this. As a small/cheap/quiet word processor and e-mail fetcher, platforms like the Liva x2 are perfectly suitable. Also, many people don't really worry much over specific decoding capabilities. As long as their new little computer can stream YouTube, Netflix, and Hulu, there's nothing to worry about and digging into the specifics isn't important or relevant.
  • kmmatney - Monday, August 24, 2015 - link

    I have a baytrail 3735D (quad core), which benchmarks about the same as the Braswell N3050, and while it seems fast enough most of the time, there are way to many instances where it skips and lags. Maybe it has to do with the eMMC storage, the overall experience isn't great. It's fine for a little while, but open up a few web pages, and things suddenly slow way down (with 2GB of RAM).
  • BillyONeal - Monday, August 24, 2015 - link

    bring up the graphics performance while retaining a similar thermal envelop

    Perhaps you meant envelope ?
  • experttech - Monday, August 24, 2015 - link

    I just built a ASROCK N3150 B based HTPC and am quite impressed with the performance. The quad core chip comes for the same price as the N3050 and is quite impressive at I think it was like 6 watts of power. First time using a fanless CPU it feels awesome and weird when you turn on the system. You don't really feel its turned on! Perfect for watching all kinds of movies!
  • BMNify - Monday, August 24, 2015 - link

    you are far better off buying any Amlogic S812 or related HTPC box with http://www.cnx-software.com/ that comes with HDMI2 at 60fps HW/SW playback NEON 128-bit SIMD (and encode if its activated) as a generic option than even the very latest Atom x5 x5-Z8300 that yet again removes AVX/2 SIMD and is by all accounts not even as good as the antiquated Atom-Z3735F Q1'14 http://cpuboss.com/cpus/Intel-Atom-x5-x5-Z8300-vs-...

    "Instruction set extensions
    SSE2
    SSE4
    SSE3
    EM64T
    SSE
    SSE4.1
    SSE4.2
    Supplemental SSE3
    AES
    Supports dynamic frequency scaling N
  • owarchild - Monday, August 24, 2015 - link

    BMNify, I'm not aware of any Amlogic S812 box with HDMI 2.0, can you give an example? CPU wise, Braswell is more powerful than Amlogic S812, for example a N3150 can decode H264 Hi10p. It's a pitty that Anandtech doesn't test the Braswell boxes with the latest OpenELEC beta versions...
  • BMNify - Monday, August 24, 2015 - link

    see http://kodi.wiki/view/Android_hardware for list to start with several Rockchip ,Amlogic, and x1 devices are capable, you need to review them and choose your requirements

    search "Amlogic HDMI 2" etc and try here for a device that suits you http://www.geekbuying.com/Search/?keyword=RK3288
  • emblemparade - Monday, August 24, 2015 - link

    I have the original LIVA, which has a N2807, and costs about the same as this new one. I love it!

    The only reason to "upgrade" would be for the better GPU and slightly better wifi. The CPUs, in fact, are equal in ability: http://www.cpubenchmark.net/compare.php?cmp[]=2263&cmp[]=2541

    But actually, the X2 seems like a worse machine. It's bigger and sips more power. If you're interested in this box, consider getting the original model if you can find it!
  • ZachSaw - Monday, August 24, 2015 - link

    For so many years Anandtech's HTPC reviews have been spreading misconceptions about the 23.976Hz refresh rate. As an avid reader, I used to think getting the perfect 23.976Hz refresh rate is all you need and have spent countless hours trying to do that with the various HTPCs I've owned over the years.

    As you used madVR to test HTPC "credentials", it unfortunately lacks an important metric in its debug OSD -- the actual frame rate the video is being played back. This takes the reference clock into account - so even if the display refresh rate says 23.976Hz (which in this case isn't even close - it's only 23.974Hz), you still have to multiply that by refclk (-ve makes it even lower). As you could see in your own screenshot, you still get a frame drop every half an hour. The unfortunate thing about this is, every ECS LIVA x2 box is going to have a slightly different rate.

    And let's not forget that not all sources are 23.976fps - some are true 24p video, others are 60p etc. Some monitors still don't report 60Hz in its EDID!

    To get true frame drop-/repeat-free playback, your media player needs to have the ability to do something like Reclock. Most of you probably haven't noticed but the DirectSound Audio Renderer (or any non-exclusive audio renderers) already resamples your audio before it goes out to your audio card (the only case where it doesn't resample is when your audio stream is the exact match of your Windows global audio settings and nothing else is playing audio). As such, asking the audio renderer to resample the audio a bit to make it match the display refresh rates won't affect the audio quality much but it will get rid of frame repeats / drops completely. If you care about audio quality, the Sanear Audio Renderer in Wasapi mode is the preferred choice. Anything less than 3% in clock adjustments will yield max audio quality. So even if you have a 24Hz refresh rate, adjusting 23.976fps to play at 24fps won't affect audio quality.

    MPDN has an open source implementation of Reclock (to be used with either DirectSound or Sanear Audio Renderer) - https://github.com/zachsaw/MPDN_Extensions/blob/ma...
  • Oxford Guy - Tuesday, August 25, 2015 - link

    Why not run the thermal test with the top of the unit off?

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