MSI Cubi 2 Kaby Lake UCFF PC Review
by Ganesh T S on December 30, 2016 3:30 PM ESTHTPC Credentials
Subjectively speaking, the only time I could hear the Cbi2-005BUS fan was in our Prime95 and Furmark testing. For media playback workloads, the fan noise couldn't be heard at all. This is an acceptable HTPC for most users when it comes to the acoustic profile.
Refresh Rate Accuracy
Starting with Haswell, Intel, AMD and NVIDIA have been on par with respect to display refresh rate accuracy. The most important refresh rate for videophiles is obviously 23.976 Hz (the 23 Hz setting). As expected, the MSI Cubi2-005B has no trouble with refreshing the display appropriately in this setting.
The gallery below presents some of the other refresh rates that we tested out. The first statistic in madVR's OSD indicates the display refresh rate.
Network Streaming Efficiency
Evaluation of OTT playback efficiency was done by playing back our standard YouTube test stream and five minutes from our standard Netflix test title. Using HTML5, the YouTube stream plays back a 1080p H.264 encoding. Since YouTube now defaults to HTML5 for video playback, we have stopped evaluating Adobe Flash acceleration. Note that only NVIDIA exposes GPU and VPU loads separately. Both Intel and AMD bundle the decoder load along with the GPU load. The following two graphs show the power consumption at the wall for playback of the HTML5 stream in Mozilla Firefox (v 50.1.0).
GPU load was around 14.19% for the YouTube HTML5 stream and 0.009% for the steady state 6 Mbps Netflix streaming case.
Netflix streaming evaluation was done using the Windows 10 Netflix app. Manual stream selection is available (Ctrl-Alt-Shift-S) and debug information / statistics can also be viewed (Ctrl-Alt-Shift-D). Statistics collected for the YouTube streaming experiment were also collected here.
Given the configuration of the PC with a SATA SSD, and the overall power efficiency of Kaby Lake, it is no surprise that the Cubi2-005BUS is one of the most power efficient platforms for online streaming services.
We didn't evaluate 4K Netflix streaming on this PC because there is no HDCP 2.2 support.
Decoding and Rendering Benchmarks
In order to evaluate local file playback, we concentrate on EVR-CP and Kodi 16.1. We already know that EVR works quite well even with the Intel IGP for our test streams. The decoder used was LAV Filters bundled with MPC-HC v1.7.10.276. We have now added HEVC streams to our test suite
In our earlier reviews, we focused on presenting the GPU loading and power consumption at the wall in a table (with problematic streams in bold). Starting with the Broadwell NUC review, we decided to represent the GPU load and power consumption in a graph with dual Y-axes. Eleven different test streams of 90 seconds each were played back with a gap of 30 seconds between each of them. The characteristics of each stream are annotated at the bottom of the graph. Note that the GPU usage is graphed in red and needs to be considered against the left axis, while the at-wall power consumption is graphed in green and needs to be considered against the right axis.
Frame drops are evident whenever the GPU load consistently stays above the 85 - 90% mark. The Cubi2-005BUS has absolutely no trouble in keeping up with the media playback use-cases
Moving on to the codec support, the Intel HD Graphics 620 is a known quantity with respect to the scope of supported hardware accelerated codecs (based on Intel's claims). DXVA Checker serves as a confirmation.
Kaby Lake-U has one of the most comprehensive codec supports in the market after Intel decided to add HEVC 8b and 10b full hardware decode. In fact, there is also support for 10-bit VP9 in the GPU. It is a pity that the display engine still doesn't support HDMI 2.0 natively.
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MrSpadge - Friday, December 30, 2016 - link
First paragraph:"The Kaby Lake-U (KBL-U)series with 15W TDP CPUs was introduced along with the 4.5W Kaby Lake-Y ones in Q3 2014."
You mean Broadwell here instead of Kaby Lake, don't you?
ganeshts - Friday, December 30, 2016 - link
bad typo, with the link in it correctly linking to the Q3 2016 article. It has been fixed.Voldenuit - Friday, December 30, 2016 - link
No tear down? Cooling system? System layout? Noise measurements?Great_Scott - Friday, December 30, 2016 - link
It doesn't really matter anyways.This kind of system is a waste of time: laptops have greater functionality for less price, and the same components. The U-series doesn't distinguish between the i5 and i7 beyond clock speeds.
You can go to any site online and get a U-series laptop for ~$400 US that also includes RAM and Storage.
barleyguy - Saturday, December 31, 2016 - link
For an HTPC, a NUC or UCFF is a lot more convenient than a laptop. They generally have less fan noise, fit in less space, and boot up with the TV (or projector) as the primary monitor.(I'm typing this on a Zotac Z-Box in my living room.)
That said, I'm really skeptical of the U-series processors in general. My Z-Box has an i5-4200u, and I've had some issues with throttling under load. Hopefully they've improved from the 4200u to the 7500u.
kmmatney - Monday, January 2, 2017 - link
and the laptop will have an OS as well...milkod2001 - Tuesday, January 3, 2017 - link
and it also has screen, keyboard and tracking device to start with and usually cost much less.I can only see good use of NUCs if the cheapest & crappiest NUCs are considered to buy to replace Intel P4 10 years old machines with existing monitors, keyboards and mice. For anything else: laptop is much better solution unless you need to Vesa mount your computer on telly.
niva - Tuesday, January 3, 2017 - link
I don't know about all that, please show me the laptop with a Kaby Lake "i7" chip and comparable specs that really stacks up to this NUC and obsoletes it.I think these boxes are ideal for installing linux on it, paying for a windows license when buying a laptop really irks me anyways so that's money down the drain too. I just bought an Acer Aspire E 15 from Amazon for $350 but that thing had a terrible drive in it, an i3-7100U, and only a single stick of 4GB RAM. Of course I had an old SSD from my previously dead laptop I could put in and I dumped linux on it which is fine with 4GB of RAM at this point, but you guys are seriously ignoring some of the components thrown into this NUC.
BrokenCrayons - Tuesday, January 3, 2017 - link
*shoulder taps* Psst, from one Linux user to another, Windows licenses are not a waste because close to or over 99% of laptops that ship with Windows end up as ....*drum roll*... Windows latops.As far as your Acer's sad configuration is concerned, welcome to the wonderful world of budget computers. You got what you paid for. If you want better new hardware, you'll have to dig a little deeper into the wallet.
ganeshts - Friday, December 30, 2016 - link
You guys are hard to please. In any case, this is a bog standard NUC, nothing special about it.Cooling system - all that matters is effectiveness, and I hope readers agree when I say that we have the most comprehensive evaluation of the effectiveness of the cooling solution of mini-PCs in the review circuit. Look at the graphs in the 'Power Consumption and Thermal Performance' section.
Noise measurement - we only do subjective eval in these reviews. Providing noise numbers for these types of PCs (i.e, non gaming mini-PCs) is pretty much useless because the noise floor is too high and these types of PCs are too quiet in our evaluation setup. Creating a noise measurement lab is not worth the investment for the number of PC reviews that I do per year. You can find dedicated guys like SPCR ( Silent PC Review - http://www.silentpcreview.com/ ) who fill that market niche with excellent reviews and articles. (I would imagine even they would not find the Cubi 2 and other similar PCs interesting enough to do noise measurements)