ASRock's High-End Vision 3D 252B HTPC Review
by Ganesh T S on May 7, 2012 6:15 AM EST- Posted in
- Home Theater
- Sandy Bridge
- HTPC
- GT 540M
- NVIDIA
The ASRock Vision 3D 252B is covered quite nicely with respect to networking hardware. With support for both Gigabit Ethernet and 802.11n, it really doesn't matter if you keep the unit beyond cable reach from the router. All our network streaming tests were carried out with a 300 Mbps 802.11n network (currently provided in my lab location by a RT-N16 802.11n gigabit router from Asus). We were easily able to stream HD clips of more than 50 Mbps. HD YouTube videos and HD Netflix streaming had no issues.
While on the topic of network streaming, let us take a brief look at how the system performs while accessing online video services. We used Flash 11.2 in Firefox with NVIDIA's v301.24 drivers for testing. The first set of screenshots below show the CPU usage while playing back a 1080p YouTube video with hardware acceleration enabled. This is the same clip used in all the other SFF HTPC reviews.
1080p YouTube HD Streaming with Hardware Acceleration (Flash in Firefox)
Netflix streaming, on the other hand, uses Microsoft's Silverlight technology. Unlike Flash, hardware acceleration for the video decode process is not controlled by the user. It is upto the server side code to attempt GPU acceleration. Thankfully, Netflix does try to take advantage of the GPU's capabilities. This is evident from the A/V stats recorded while streaming a Netflix HD video at the maximum possible bitrate of 3.8 Mbps. While the video is definitely not 1080p, we observe that the CPU utilization of around 18% is lower than the CPU usage for a 1080p YouTube video.
Netflix HD Streaming with Hardware Acceleration
Users of media streamers streaming online videos often have to put up with messages of the sort 'This content is not available on TV connected devices' or need to queue up the videos on a PC before accessing them through their media streamer box. HTPC users don't need to worry about any such limitations. On a side note, it is disappointing to see Netflix restrict its 1080p / DD+ 5.1 offerings to the PS3 and Roku 2. It is the PC platform which launched the streaming business for Netflix. It would be good if they do not relegate HTPC users to being second string consumers as their popularity grows.
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Southernsharky - Monday, May 7, 2012 - link
As other people have noted, you could just buy a laptop with almost all of these specs, except for the 750 gb HD for 1/2 this price. You could buy a quad core laptop and an external hard drive for less than $800. This product screams rip off.blackbrrd - Monday, May 7, 2012 - link
You can get 1tb laptop hdds for around 100$, so that's not really a problemBPB - Monday, May 7, 2012 - link
My issue would then be speed. You can get 1TB notebook drives cheaper these days, but the speed is 5200rpm and 5400rpm. I wonder how they would handle recording 3 HD shows?blackbrrd - Monday, May 7, 2012 - link
A typical HD movie of 2 hours takes maybe 4gb which comes down to about 0.5mbyte/s. Writing three hd streams at a time (1.5mbyte/s) shouldn't be a problem. I haven't tried it though.seanleeforever - Wednesday, May 9, 2012 - link
A typical HD movie of 2 hours takes maybe 4gb which comes down to about 0.5mbyte/s.how about 3 times as much? at 4GB you are talking about DVD quality, which is no where near HD level.
lenkiatleong - Monday, May 7, 2012 - link
I am puzzle how you can bitstream HD audio via optical as quoted "..when playing back a 1080p24 Blu-ray movie from the optical drive with HD audio bistreaming.". Do you mean Dolby TrueHD and DTS HD Master?Another question is, can the HDMI bitsream Dolby TrueHD and DTS HD master using PowerDVD 12 to your AV?
ganeshts - Monday, May 7, 2012 - link
Yes, the HDMI can bitstream HD audio using PDVD 12. Of course, through optical SPDIF, only Dolby DIgital and DTS can be bistreamed. Note that when I mentioned optical drive, I meant the Blu-ray drive as opposed to something from the hard disk or an externally attached hard drive / over the network.lenkiatleong - Tuesday, May 8, 2012 - link
Thank you for the clarification. There is another thing which i have in doubt from day one. It would be good if you could enlighten us.The question: Is there any difference if one uses HTPC like this AsRock (bluray ISO source or optical drive, PDVD12 and HDMI) to feed HD audio (Dolby TrueHD or DTS HD Master) and HD video to mid/high end AV as compare to using average bluray player in the market?
ganeshts - Wednesday, May 9, 2012 - link
In most cases, no. The reason is that you are at the mercy of NVIDIA drivers for certain functionality, and if they get broken in a certain driver release, you might not get perfect output (scaling from 4:2:0 Blu-ray video to 4:2:2 / 4:4:4 needed by HDMI for transportation may be achieved by different algorithms in the case of hardware Blu-ray players / even the NVIDIA driver algorithm might not be perfect). Note that a hardware player itself is not guaranteed to do this properly either.DerPuppy - Monday, May 7, 2012 - link
Not sure if I'm a little behind somewhere, but is there a simple/straightforward guide to configuring a media player like MPC-HC somewhere for one to peruse in the interest of properly configuring a media center? or would anandtech be interested in creating or maintaining one?