The Apple iPad Review (2012)
by Vivek Gowri & Anand Lal Shimpi on March 28, 2012 3:14 PM ESTSince Apple launched the first iPad two years ago, the tablet market has evolved rapidly. While slate tablets were nothing new, the original iPad was the first serious tablet to be built around smartphone components and a user interface designed specifically for touchscreen input. The hardware was enough to run the OS smoothly while maintaining good battery life, the thin and light form factor lent itself to easy portability, and the touch-based user experience was miles better than earlier devices based on desktop operating systems.
We take it for granted now, but this was all news back in 2010, and the iPad was practically in a category of its own, with no real competitors to speak of. After Apple started shipping the iPad, the segment basically exploded—we had Google jump in with Honeycomb, HP got into it (and then out of it) with webOS, RIM had a go with the PlayBook, Amazon pushed the Kindle line into the tablet space, and Microsoft created its next release of Windows with tablets in mind. Along the way, Apple updated the iPad, both on the software side with multitasking, a new notifications system, and a myriad of UI updates, as well as launching second generation iPad hardware. The iPad 2 was a comprehensive update, bringing a dual core processor, unrivaled graphics performance, cameras fore and aft, and a ground up redesign that brought a thinner and lighter form factor.
The iPad 2 was a significant improvement over the original—faster, more portable, and generally a far more polished device. Not that it was perfect: iOS 4 still had issues with smooth multitasking and an archaic notifications system, the cameras were mediocre, and the XGA display, while a great quality panel, didn’t have the kind of pixel density expected of a premium mobile device. The iPad 2 hit market around the same time as Honeycomb (in Motorola’s Xoom) early last year, and at first Apple still held a major edge in terms of hardware. As more impressive Honeycomb devices like Samsung’s Galaxy Tab 10.1 and the ASUS Transformer Prime were launched, along with Ice Cream Sandwich looming on the horizon, Android became a much more viable tablet alternative to iOS. And with Microsoft planning for a major push later this year for ARM-based Windows 8 tablets centered around the Metro UI, Apple has never faced such stiff competition in the tablet space. Which brings us to the third generation of iPad hardware.
It has a display resolution that dwarfs most high-end desktop displays. The panel also puts a real emphasis on quality, not just resolution. For a computing device targeted squarely at the consumer market, both of these things are rarities.
Its SoC is the absolute largest ever squeezed into an ARM based tablet. The chip itself is even bigger than what you find in most mainstream notebooks. It’s expensive, it puts out a ton of heat and it offers a tremendous GPU performance advantage over anything else in its class.
And it has a battery that’s larger than what ships in the current crop of similarly sized ultraportables and Ultrabooks.
The new iPad doesn’t significantly change the tablet usage paradigm, but it does put all previous attempts at building hardware in this space to shame. It’s the sort of no holds barred, performance at any expense design that we’re used to seeing from enthusiast PC component vendors—but in a tablet...from Apple.
Welcome to the new iPad.
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name99 - Friday, March 30, 2012 - link
Just to clarify, this is NOT some Apple proprietary thing. The Apple ports are following the USB charging spec. This is an optional part of the spec, but any other manufacturer is also welcome to follow it --- if they care about the user experience.darkcrayon - Thursday, March 29, 2012 - link
All recent Macs (last 2-3 years) can supply additional power via their USB ports which is enough to charge an iPad that's turned on (though probably not if it's working very hard doing something). Most non-Mac computer USB ports can only deliver the standard amount of USB power, which is why you're seeing this.Your Lenovo *should* still recharge the iPad if the iPad is locked and sleeping, though it will do so very slowly.
dagamer34 - Friday, March 30, 2012 - link
I did the calculations and it would take about 21 hours to recharge an iPad 3 on a normal non-fast charging USB port from dead to 100%. Keep in mind, we're talking about a battery that's larger in capacity than the 11" MacBook Air.snoozemode - Thursday, March 29, 2012 - link
http://www.qualcomm.com/media/documents/files/snap...Aenean144 - Thursday, March 29, 2012 - link
Anandtech: "iPhoto is a very tangible example of where Apple could have benefitted from having four CPU cores on A5X"Is iPhoto really a kind of app that can actually take advantage of 2 cores? If there are batch image processing type functionality, certainly, though I don't know if iPhoto for iOS has this type of functionality. The slowness could just be from a 1.0 product and further tuning and refinement will fix it.
I'm typically highly skeptical of the generic "if the app is multithreaded, it can make use of all of the cores" line of thought. Basically all of the threads, save one, are typically just waiting on user input.
Anand Lal Shimpi - Thursday, March 29, 2012 - link
It very well could be that iOS iPhoto isn't well written, but in using the editing tools I can typically use 60 - 95% of the A5X's two hardware threads. Two more cores, at the bare minimum, would improve UI responsiveness as it gives the scheduler another, lightly scheduled core to target.Alternatively, a 50% increase in operating frequency and an improvement in IPC could result in the same net benefit.
Take care,
Anand
shompa - Friday, March 30, 2012 - link
*hint* Use top on a iOS/Android device and you will see 30-60 processes at all time. The single threaded, single program thinking is Windows specific and have been solved on Unix since late 1960. Todays Windows phones are all single threaded because windows kernel is not good at Multit hreding.With many processes running, it will always be beneficial to have additional cores. Apple have also solved it in OSX by adding Grand central dispatch in their development tools making multithreaded programs easy.
Iphoto for Ipad: Editing 3 million pixel will demand huge amount of CPU/GPU time + memory. Apple have so far been able to program elegant solutions around the limits of ARM CPUs by using NOVA SIMD extensions and GPU acceleration. An educated guess is that Iphoto is not fully optimized and will be at later time.
(the integrated approach gives Apple a huge advantage over Android since Apple can accelerate stuff with SIMDs. Google does not control the hardware and can therefore not optimize its code. That is one of the reasons why single core A4 was almost as fast as dual core Tegras. I was surpassed when Google managed to implement their own acceleration in Andriod 4.X. Instead of SIMD, Google uses GL, since all devices have graphics cards. This is the best feuture in Android 4.x.)
name99 - Thursday, March 29, 2012 - link
[/quote]Apple’s design lifespan directly correlates to the maturity of the product line as well as the competitiveness of the market the product is in.
[/quote]
I think this is completely the wrong way to look at it. Look across the entire Apple product line.
I'd say a better analysis of chassis is that when a product first comes out, Apple can't be sure how it will be used and perceived, so there is some experimentation with different designs. But as time goes by, the design becomes more and more perfected (yes yes, if you hate Apple we know your feelings about the use of this word) and so there's no need to change until something substantial drives a large change.
Look, for example, at the evolution of iMac from the Luxo Jr version to the white all-in-on-flatscreen, to the current aluminum-edged flatscreen which is largely unchanged for what, five or six years now. Likewise for the MacBook Pro.
Look at the MacBook Air. The first two revs showed the same experimentation, trying different curves and angles, but Apple (and I'd say customers) seems to feel that the current wedge shape is optimal --- a definite improvement on the previous MBA models, and without anything that obviously needs to be improved. (Perhaps the sharp edges could be rounded a little, and if someone could work out the mechanicals, perhaps the screen could tilt further back.)
And people accept and are comfortable with this --- in spite of "people buy Apple as a fashion statement idiocy". No-one will be at all upset if the Ivy League iMacs and MBAs and Mac Minis look like their predecessors (apart from minor changes like USB3 ports) --- in fact people expect it.
So for iPhone and iPad. Might Apple keep using the same iPhone4 chassis for the next two years, with only minor changes? Why not? There's no obvious improvement it needs.
(Except, maybe, a magnet on the side like iPad has, so you could slip a book-like case on it that covered the screen, and switched it on by opening the book.)
Likewise for iPad.
New must have features in phones/tablets (NFC? near-field charging? waterproof? built-in projector like Samsung Beam?) might change things. But absent those, really, the issue is not "Apple uses two year design cycles", it is "Apple perfects the design, then sticks with it".
mr_ripley - Thursday, March 29, 2012 - link
"In situations where a game is available in both the iOS app store as well as NVIDIA's Tegra Zone, NVIDIA generally delivers a comparable gaming experience to what you get on the iPad... The iPad's GPU performance advantage just isn't evident in those cases..."Would you expect it to be if all the games you compare have not been optimized for the new ipad yet? They run at great frame rates but suffer in visuals or are only available at ipad 2 resolutions. The tegra zone games are clearly optimized for Tegra while their iOS counterparts are not optimized for the A5x, so of course the GPU advantage is not evident.
This comparison does not seem fair unless there is a valid reason to believe that the tegra zone games cannot be further enhanced/optimized to take advantage of the new ipad hardware.
I suspect that the tegra zone games optimized for A5x will offer a tangibly superior performance and experience. And the fact that the real world performance suffers today does not mean we will not see it shortly.
Steelbom - Thursday, March 29, 2012 - link
Exactly this.