ASUS Eee Pad Transformer Prime & NVIDIA Tegra 3 Review
by Anand Lal Shimpi on December 1, 2011 1:00 AM ESTVideo Playback: Blu-ray Quality in a Tablet
One of the biggest issues with Tegra 2 based tablets and smartphones is a limitation that prevented hardware accelerated decode of any high profile H.264 video content. You could still decode the video but the additional stages of the decode process were left to run on the CPU, which in turn resulted in substantially lower battery life. NVIDIA has completely addressed the problem with the Tegra 3's video decoder, which is now capable of decoding 1080p H.264 high profile streams at up to 40Mbps.
The Honeycomb video player (Gallery app) will play .mkv files by default but if you want to throw on a .m2ts file you'll need to grab a third party player. DICE Player for Android supports Tegra 3's hardware acceleration, making it a good option if you want broader file compatibility.
Android File Transfer won't push over a file greater than 4GB so the first thing I tried was ripping a portion of A Quantum of Solace (BD) and sending over a 40Mbps High Profile 1080p MKV of it. The resulting 10 minute segment was 2.8GB in size and played beautifully on the Prime. There were no dropped frames and no hiccups, it just worked.
External NTFS volumes are supported and the sdcard file system supports files greater than 4GB in size, so I copied a 15GB 1080p Blu-ray rip of A Quantum of Solace from a USB stick to the Prime. I had to use DICE Player to get audio but otherwise the clip just worked. The biggest pain was copying the huge file across, but it'd be quicker and less painful than a re-encode on most systems.
To really test my luck I threw a few of our media streaming test files at the Prime. Our 720p60 test file worked perfectly, while our 1080p60 test case was mostly smooth with the exception of occasional slowdowns. I tried playing back a 1080p30 VC1 file however I couldn't get it to play back with hardware acceleration. Some of the more exotic combinations of features and file types wouldn't work, although I suppose that could be the fault of the playback software.
As far as I can tell, Tegra 3 and the Eee Pad Transformer Prime in particular are capable of playing back 1080p24 Blu-ray class video. Total NAND capacity is the only thing limiting us from just dumping a raw Blu-ray rip onto a tablet and playing that directly. Pretty much any HD rip you make yourself or find online will likely work. You may still need to invest in a good third party player to ensure things like subtitles are properly supported however.
I'm pleased with the state of video on the Prime. It's not HTPC level, but we can finally play really good quality video on an Android tablet. I suspect it'll be one more generation before we get tablets (and associated software) that will just play anything you throw at them.
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Anand Lal Shimpi - Thursday, December 1, 2011 - link
It actually feels really good. Hold it one handed in landscape mode and you'll get tired quickly, use it in portrait and prop it up on your chest and it's golden. It's not too big and heavy but you just need to prop it up against something for extended use.Take care,
Anand
Sabresiberian - Thursday, December 1, 2011 - link
Still sounds awkward to me.This is the kind of thing that intrigues me though, when it comes to "tablets". I'm one of those people that doesn't get the tablet thing, but I'm curious. This would be a good way for me to try one out, if I had a spare $600+ anyway. Which I don't right now. I could check out the tablet, and use it as a netbook/ultrabook if I didn't like the tablet option.
Coolz toyz will grab us by the privates, even when we know better. Or think we do.
:D
ltcommanderdata - Thursday, December 1, 2011 - link
http://www.nvidia.com/content/PDF/tegra_white_pape...According to nVidia's documentation, Tegra 2's GPU only supported FP20 in the pixel shaders. Has this been improved in the Tegra 3? I believe at least FP24 is required to officially support DirectX 9, so remaining at FP20 would presumably prevent Tegra 3 from being supported in Windows 8. Unless Microsoft intends to make an exception?
Reikon - Thursday, December 1, 2011 - link
"The X button acts as a tap/click on an icon (yes, NVIDIA managed to pick a button that's not what Sony or Microsoft use as the accept button - I guess it avoids confusion or adds more confusion depending on who you ask)."I'm not sure I'm reading it correctly, but Sony actually uses X as the accept button. It's just not in the same place as the one on that Logitech controller.
Ric_Margiotta - Thursday, December 1, 2011 - link
Thanks for the detailed write up, Anand! I'm looking forward to picking up a Prime when they reach the UK in January.ATOmega - Thursday, December 1, 2011 - link
Thanks for getting the review out so quickly! Still hoping to hear more about GPS, but I realize it's tough to fit it all through in such a small window.I recently sold my iPad2 to cover some of the cost of pre-ordering this tablet. My biggest frustration to date has been having no viable Android tablet to date and being forced to us iOS in the meantime. I've never felt so emasculated by an operating system!
By most measures, it looks like the Transformer Prime is consistently equal if not slightly better in most regards to the iPad2. Bearing in mind that it runs at a higher resolution when comparing performance numbers.
I have to agree, anyone who has been on the fence over Android tablets can probably come down now. It will be a year at the very least until we see a similar combination of build quality, screen quality, performance, consistency, etc... for Android again.
steven75 - Saturday, December 3, 2011 - link
Now you get to feel emasculated by lack of software.ismailfaruqi - Thursday, December 1, 2011 - link
Anand, does Tegra 3 support OpenCL already?Loki726 - Thursday, December 1, 2011 - link
nope, not yetismailfaruqi - Thursday, December 1, 2011 - link
thanks, it seems so. How about ipad2's powervr?