A Much Larger Battery

Apple claimed no decrease in battery life for the new iPad compared to last year's model and only a 1 hour drop over LTE. The problem is that the combination of A5X SoC under GPU load, the LTE baseband and driving/lighting all of those pixels in the Retina Display has a significant impact on power consumption.

Apple addressed the issue by increasing the new iPad's battery capacity by 70%. If the leaked PCB photos are accurate (they look to be), Apple increased battery volume by shrinking the motherboard size and increasing the thickness of the tablet.

The new 42.5Wh battery is downright huge. To put the new iPad's battery in perspective, this is nearly the same battery capacity as the what was shipping in the 2008 13-inch MacBook Pro. This is also a bigger battery than what's used in the 2011 11-inch MacBook Air:

Apple Battery Capacity Comparison

Over the next two years you can expect to see the line between ultraportable and tablet blur considerably. Looking at where the new iPad falls in the chart above really begins to exemplify just how blurry that line is going to become.

With the display off, the new iPad looks and feels a lot like the iPad 2. The additional thickness is hard to see, but the additional weight is definitely noticeable. The new iPad isn't as heavy as the original model, but it's clearly heavier than the iPad 2. I don't believe the added weight is a deal breaker, but it is a step backwards. Maintaining battery life however obviously trumps added weight.

The math is pretty simple. If Apple is claiming 10 hours of battery life with a 42.5Wh battery, the new iPad with the iPad 2's battery would likely be good for just under 6 hours. Such a drop would be unacceptable and thus the new iPad gets a bigger battery and incurs additional weight from the new battery and display components.

The CPU & More Final Words
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  • solipsism - Sunday, March 11, 2012 - link

    Doesn't the 360 only output 720p?
  • Steelbom - Sunday, March 11, 2012 - link

    It varies from 1024x600 to 1080p but the majority are 720p. (I'd imagine the few at 1080p would be less impressive graphically.)
  • Ryan Smith - Monday, March 12, 2012 - link

    The 360 has 22.4GB/sec of main memory bandwidth (the eDRAM is even higher). That's 1.4GHz on a 128bit bus. The A5 meanwhile is 800MHz on a 64bit bus, which on paper is 6.4GB/sec.
  • Steelbom - Tuesday, March 13, 2012 - link

    Ah right, I see. Thanks.
  • tipoo - Wednesday, March 21, 2012 - link

    So 3.5X the bandwidth for far less resolution. I think what we're bound to see is games that advertise native retina resolution, but the textures and whatnot will still be the old resolution. Games like Infinity Blade have separate resolutions for menus, shadows, etc.
  • thebeastie - Saturday, March 10, 2012 - link

    I am hoping to see you do some oversized bluray rip mkv benchmarks, I have my avatar 3d bluray mkv and the ipad2 just can't handle it via local or over network, very annoying if I want to watch a movie in the other room via my Sony HMZ-T1 via apple hdmi out connector.

    I want a tablet that can at least handle this kind of work load, it should be able to as it still fits into content consumption and nothing to do with content creation...

    Thanks, been a big anandtech fan for over 10 years!
  • realbabilu - Sunday, March 11, 2012 - link

    Dear beastie, the idevices is supporting playing 1080p, even the iPhone 3GS can done it. How? The QuickTime plugin inside iOS is so powerful that can play that specs. However there is some caveat. You must using mp4 container that has x264 avc and mp4 AAC stereo format or 6ch AAC, rather than Mkv.

    I assume you have Mkv format of bdripped movie. Check that movie has x264 avc track, and AAC audio. Usually Mkv has ac3 sound track or stereo AAC like he AAC Nero codec has. Form here you can re mux or video copy the Mkv into mp4 container, the process only take 1 minute. Ac3 should be converted, but it takes no longer than 5 minutes.

    How to Re mux it? If you are using Mac, try subler, the best ever free Mp4 from Mkv for Mac, includes metadata like pros, and ac3 convert, also multi subtitle, and multi sound track. If you are in the pc, you can copy Remux thru free xmedia recode, and copy the AAC stereo or convert the ac3 to stereo AAC.unfortunately no subtitle muxer approved in ios of including mp4box srtiphone.

    If you want to retaining the ac3 you can put the ac3 to sound track 2 as pastry, and put the AAC stereo as soundtrack number 1. The editing multi soundtrack needs subler. Or if you have want to convert not Remux from DVD or blue ray you can use handbrake pc/ Mac that can convert video,multi sound, multi subtitle as subler did but takes hours since it converting instead Remux.

    The results 1080p can be opened directly using third party like oplayerhd with QuickTime plugin enabled. Or you can use videos iPad default app. To insert 1080p inside iPad movies library you have to use copytrans manager free that only availableo on pc. Be sure to have iPad manually manage songs enabled on iTunes desktop.

    http://www.youtube.com/watch?v=yRWOUcgdXvw
  • ueharaf - Saturday, March 10, 2012 - link

    how about atrix and atrix 2 in with ubuntu?
    lapdocks,multimedia docks,etc.
    Android and linux has an alternative to windows 8...dont forget it!!
  • wilmarkj - Sunday, March 11, 2012 - link

    This has got to be one of the best summaries i have read online about the whole tablet issue and its future. I am fedup of all those 'pundits' out there who are jumping on the "tablets are going to take over everything" bandwagon. I dont see how tablets in its current state could be used for writing documents, programming, graphics, serious gaming, spreadsheets, doing animations, etc or any 'real work' Its even questionable for casual things like gaming or even browsing the internet or writing an email. Once it involves text i would much prefer a system with a PROPER keyboard. However this has brought many casual users to the computing fray. And i agree with your sentiments with windows 8. I am wondering where we 'serious' users will get our next os from??
  • AnnonymousCoward - Sunday, March 11, 2012 - link

    Does The New Ipad still require you to perform the pointless "slide to unlock" and "slide to power down"? Dumbest requirement ever.

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