ASUS Eee Pad Transformer Prime & NVIDIA Tegra 3 Review
by Anand Lal Shimpi on December 1, 2011 1:00 AM ESTThe Dock & Keyboard
Despite what ASUS originally told us when it launched the first Transformer, the Prime does not work with the old dock. Admittedly you wouldn't want to use the sleek new tablet with the clunky old dock, but I'm just not a fan of being used to convey incorrect information.
The new dock matches the Transformer Prime perfectly. The docked Prime isn't as elegant as the Zenbook and I'd argue that the dock does take away from the tablet's beauty, but if you need to hammer out long emails or a big document the dock is a great solution.
The dock's beauty isn't just that it's convenient (it behaves just like a notebook once mated to the tablet) but that it acts as a second battery for the Eee Pad. ASUS has also done the necessary customizations to Honeycomb to appropriately track battery levels in the dock and the tablet. There's also a little animation indicating that the dock is charging the tablet. To the best of my knowledge, the tablet will never be used to charge the dock.
Scrolling is rarely as smooth as I'd like it to be via the dock's trackpad. Many times the gesture just won't register on the trackpad or the trackpad will detect my two fingers but it won't scroll. With the screen inches away I found myself preferring to use the touchscreen for scrolling and stuck to using the dock for typing. You can control pointer speed and cursor style in the OS now, which is a nice addition.
The typing experience itself is great on the dock. The keys are big enough (around 15mm x 14mm) to type quickly on and feedback is good. The keys were a bit taller on the old dock, but as the new model is thinner the keys went on a similar slimming process.
Using the dock on a desk is fine, but use the dock on your lap and you'll have to keep applying a little bit of downward force with your wrists to keep the system from leaning backward. The dock is angled forward so if you're not typing on a flat surface the system might pivot backwards. The correction is simple, you just need to push down with your wrists/palms a bit while you type. I even have to do that a bit on my 11-inch MacBook Air. The difference is the MBA has enough surface area for me to comfortably rest my wrists, the Transformer Prime's dock does not. While I don't notice much fatigue while typing on my MBA, my wrists do feel it when I use the Prime + dock on a couch.
My dock had a connection issue between the Prime and the dock itself, which ASUS insists shouldn't be happening. Tilt the Prime towards you when in the dock and the screen would occasionally go white. It feels like a manufacturing issue, although I'm apparently the only one who has reported it.
Android is still not beefy enough to be a full blown laptop replacement, but the Prime does come with enough apps to at least let you do some basic word processing and spreadsheet work. If you're going to do a lot of typing on your tablet I'd easily recommend the dock, it's the best way to get your thoughts into words on the Prime. Otherwise, the $150 adder just adds bulk and cost to the platform. The Prime is really great to use on its own. If you want an alternative to the dock, ASUS will have its own clone of Apple's iPad smart covers at some point in the coming weeks.
ASUS' five row virtual keyboard is back on the Prime. While it doesn't look as good as the standard Honeycomb keyboard, I do like having the numeric row visible above the rows of letters. Nuance's T9 Trace is still supported by the keyboard (Swype-like continuous text input) although I'm not personally a fan. You can disable Trace as well as revert to the stock Honeycomb keyboard if you'd like.
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ATOmega - Tuesday, December 6, 2011 - link
Exactly my reasoning, and it's easy enough to see that the Transformer Prime boasts better features like GPS, camera and display.After having owned an iPad2, there must be a reason why I want this thing. And it's for all the things Apple decided to fleece me on so that they could jack up their margins.
I never liked Apple in the first place, but it's obvious they don't want to truly compete with the Android OS.
sigmatau - Thursday, December 1, 2011 - link
I was really hoping Nvidia would have something special with kal-el. This is pretty horrible when compared to hardware that has been available for about a year.It seems that the Nvidia-equiped tablets should be targeted at a much lower price point. They definetly should not be in the top tier tablets. I can see them selling at $300 or less.
UpSpin - Thursday, December 1, 2011 - link
Don't forget the display brightness. I don't think that the processor makes such a huge difference in power consumption, but the display on the Prime is much much brighter than the display of the iPad, and this will consume a huge amount of power. It's also brighter than the display of the first gen transformer, and the prime has a quad core and it gets the same or higher battery life than the first gen, I think that's really a big improvement.And if you want to use a tablet on the go, outside the house, you really need the brightest display possible. And as you can see in the picture, the difference between the sunlight visibility of the iPad and Prime is like day and night. Therefore I at least, sacrifice the 3 hours less battery life.
name99 - Thursday, December 1, 2011 - link
The display surely only uses more power if you drive it at a brighter level?And a well-designed tablet should have a light sensor, and should do a good job of auto-calibrating the brightness to the environment, so that most of the time it is NOT running the screen in bright mode. After all, that's what we expect regarding the core --- we throttle CPU when it's not needed. So, sorry, I don't think this is an acceptable answer.
I continue to state my original thesis --- I suspect that DRAM power is substantially more important than most people believe, and that one of Apple's advantages is that they ship iOS devices with minimal DRAM. This is obviously a hassle for developers, and even for some power users, but that's the tradeoff one has to make.
(Also what's the story with Android and VM? iOS does NOT do any "write" swapping --- code is paged in, but data is not paged out, and I expect that this is a power issue, nothing else --- Apple doesn't want the power hit of swapping.
I thought Android was like this --- did not write pages --- but I have read stuff recently that said no, it is now using standard desktop type VM, which is likely also a power sink.)
metafor - Thursday, December 1, 2011 - link
nVidia's solution is actually much more sophisticated than that. It's similar to a method Intel started using a ways back for laptops.It's not just auto-dimming the entire screen; it's auto-dimming every pixel individually. There is fine-grain control over the LED backlight of the display. Areas in each frame that contains black will now not only have the LCD crystal for that pixel in a "block" mode, but it will also have the backlight for that specific pixel dim.
This actually produces benefits other than just battery life; one of the biggest problems with LCD's is that blacks aren't really black because the crystal isn't able to block 100% of the backlight.
By dimming the backlight, the parts of an image that is supposed to be black will be closer to true black. This improves contrast and provides for more accurate pictures.
UpSpin - Friday, December 2, 2011 - link
how shall this work if the backlight is created by an LED array at the edge, which almost all smaller (<20") displays are. So with an edge lit backlight you can't reduce the LED brightness block wise.This is different if the used panel has a full array of LEDs, which is expensive, more power consuming and thicker, so a no go on a mobile device that thin. And neither Intel nor Nvidia have impact on this, because this requires a different panel.
TechAnandUser - Friday, December 2, 2011 - link
BenchMarking App's are not yet optimized. So please wait !!fteoath64 - Friday, December 2, 2011 - link
Why would you want a Win8 tablet ?. Its slow, heavy, short battery-life and probably cost 50% more!.You are better off with a mid-range slim laptop which you probably have. So unless you grab one of these or already have an ipad, you have no idea what a tablet can do for you.eddman - Friday, December 2, 2011 - link
You might have a time machine then, cause right now there are no win 8 tablets, let alone ARM based ones.tipoo - Thursday, December 15, 2011 - link
"Its slow, heavy, short battery-life and probably cost 50% more"Citation needed, citation needed, citation needed, and citation needed respectively. None of us have tested finalized W8 table hardware yet, unless you are from the future.