Asus eee Pad Transformer Prime

Welcome to the big leagues. The Asus eee Pad Transformer Prime feels like the first laptop-class Android tablet, with its quad-core 1.4Ghz processor, clever add-on keyboard dock, and its support for USB storage and console gamepads. This is easily the most impressive Android tablet ever. But with such startling specs, it's outstripping the weak app selection available for Google's Android Honeycomb OS. Although there are a few standout apps for the platform, the lack of a thriving Android tablet app community makes the Transformer Prime a less sure choice than it should be.

Physical Description and Battery Life
The Asus eee Pad Transformer Prime ($499 for 32GB, $599 for 64GB) is a very long, narrow tablet at 10.4 by 7.1 by .3 inches and 20.6 ounces, but it's very slim at .3 inches. It comes in silver and purple. There's a power/dock connector on the bottom, a MicroUSB slot and MicroSD card slot on the left, a standard 3.5-mm headset jack on the right and a somewhat annoyingly recessed power button on top. The tablet connects to the Internet using Wi-Fi 802.11 b/g/n, and it also has Bluetooth.

Turn the tablet on to experience a slightly altered version of Google Android Honeycomb 3.2, with some custom widgets, slightly altered icons, and some exciting new settings when you tap on the lower left corner of the screen. One of the settings boosts the sharp 1280-by-800 IPS LCD screen into an extra-bright 600 nit mode, which takes the screen from slightly dimmer than the Apple iPad 2's ($499, 4.5 stars) to somewhat brighter, albeit at the cost of battery life.

But why are you buying this without the $149 keyboard dock? The dock turns the Prime into a netbook, adding a six-row keyboard whose keys are? 94% as wide as standard laptop keys, and a trackpad below that. The keyboard's top row is all function keys, and there's a separate menu button; many Android features are mapped to keys so you won't always need to touch the screen, although you'll still have to reach forward for things like scrolling Web pages. The keys are comfortable to type on, but the trackpad button is extremely stiff.

Almost as importantly as the keyboard, the dock adds an extra battery and a full-sized USB port so you can plug in flash drives, hard drives or gaming controllers.

Tegra 3's added power doesn't mean shorter battery life. It should mean longer battery life in many cases. In our standard test - screen brightness turned to max, processor speed at normal, playing a video file until the tablet fails - we got a very respectable 7 hours 38 minutes of playback, almost exactly the life of the iPad 2.

With screen brightness at 50 percent and the power profile set to "balanced," Asus and Nvidia say they got about 10 hours of video playback. Plugging in the dock, which adds its extra battery, adds another 5-6 hours of life. This is truly an all-day device.

Performance

This is the fastest, most powerful tablet we've ever tested - and yes, that includes the iPad 2. The secret ingredient is Nvidia's five-core Tegra 3 chipset, including four cores which work together at up to 1.4Ghz each and a "companion core" which runs alone and sips power during more idle moments.

You won't see the blinding speed when you're poking around the main UI or some of Google's apps, as they're occasionally nonresponsive, although screen transitions are a bit more fluid than on other Android tablets. But in an app that's programmed well for this tablet (or in our benchmarks) the power comes out.

The Prime has three "performance modes" that you can set in the status bar. Power saving mode caps the processor cores at between 600Mhz and 1Ghz depending on usage, caps video frame rates at 35 fps and lowers the screen brightness, all to save power. Balanced mode caps the quad-core processor at 1.2Ghz per core. Normal mode goes all out.

In Normal mode, the Prime scored a breathtaking 10,619 on the Antutu system benchmark, roughly doubling the score of even fast devices like the HTC Jetstream ($549, 3 stars), with its 1.5Ghz dual-core Qualcomm processor. Much faster RAM and CPU scores made the difference; the tablet was on par with other recent devices for database access and SD I/O. The processor had less effect on Sunspider and Browsermark browsing benchmarks, although the scores of 17ms at Sunspider and 98324 at Browsermark were among the best we've seen on a tablet. Switching the modes down to Balanced, and then Power Saving had the expected effect - first I lost about 10% of the speed, and then half.

This is a spectacular tablet for gaming. The boat game Riptide GP has more realistic water effects than on the iPad; I also played Zen Pinball and Big Top THD, both with rich, gorgeous, well-lit graphics. Adding the dock lets you plug in real gaming controllers, although it also forces you to play in landscape mode. Playing Riptide with a PlayStation 3 SixAxis controller was the best time I have had playing a game on a mobile device, ever. It's much more responsive than tilting the screen. Zen Pinball is also much more playable with real buttons, though I would have liked to be able to play it in portrait mode. (Asus says the tablet also supports some Bluetooth controllers; I just don't have any.) Touch screens just aren't the natural interface for many games. A good joystick can make all the difference.

Adobe's new PS Touch - an Android version of Photoshop - is another great example (and a potential killer app.) PS Touch lets you do very powerful, complex, multilayered transformations on images. Combine it with Autodesk's Sketchbook Pro, and you have a terrific tablet for artists. The quad-core processor greatly speeds up PS Touch: a filter that makes a photo look like an acrylic painting took 1.4 seconds as opposed to 5.3 on the dual-core Samsung Galaxy Tab 10.1.

I ran into some bugs. The Market app stalled out a lot. The Browsermark benchmark sometimes crashed the browser. Occasionally while typing in office suites, the cursor jumped around for no apparent reason. If you plug a USB stick into the dock too quickly after docking the tablet, the tablet won't recognize any USB memory until a cold boot. Scrubbing through a 7.46GB MKV video file made the video player quit at one point; a reboot solved that, too. ?

There's only one perplexing sore point: it takes at least twice as long to cold boot this tablet as with any other tablet I've tested. The Prime takes about a minute to boot; the Samsung Galaxy Tab 10.1 ($499, 3.5 stars) and Apple iPad 2 take half that time.

Apps, Such As They Are

This is the first tablet review I've actually written on the tablet. That says a lot, but it doesn't say enough.

The Transformer Prime runs Google Android 3.2, just like most other tablets nowadays. An upgrade to Android 4.0 "Ice Cream Sandwich" is coming soon, Asus pledges. It comes with all the usual Google apps, plus some custom widgets and 8GB of cloud storage from Asus.

The problem is, as always, finding apps that take advantage of the Prime's hardware is much, much harder than it should be. The vast majority of the apps in Google's and Amazon's app stores are designed to work well on small, cheap smartphones, not to show off what a quad-core tablet can do. Google steadfastly refuses to force developers to include the "Max API" flag, an existing tag which could segregate the low-power, low-res phone apps away from tablet users. Nvidia has improved the situation a bit with its Tegra Zone, a free alternative app store which spotlights games designed for its Tegra 2 and 3 devices.

I covered gaming and art apps above. For office work, you have the choice of a few office suites; I tried DocumentsToGo and OfficeSuite Pro. They're functional but quite basic. The keyboard dock works with them to enable popular keyboard shortcuts, though, so you can shift-select and then hit control-X to cut text, for instance. And you'll have to post your document online; as with all Android devices, there's no built-in support for printers.

The Android interface also doesn't have a quick way to easily flip between several windows. You can say the same about iOS, of course. But I have the Prime next to my Windows 7 netbook right now, and I'm missing the fluidity of being able to have two windows on a screen or to flip between tabs of things without poking the multitasking button at the bottom of the Android interface. The Prime's hardware can do a lot of things at once, but the software doesn't spotlight that.

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/zc2J8X6cW4g/0,2817,2397083,00.asp

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