The Display: Multiple Vendors, Nearly Identical to iPad 1

Apple built the iPad 2 with a similar 9.7-inch 1024 x 768 IPS panel as the original iPad. Side by side the two panels appear to have similar qualities in terms of brightness, black level and contrast ratio. Once we started measuring however we noticed a trend: there appear to be multiple panel vendors in play here.

Between Brian, Vivek, Manveer and myself we have four iPad 2s. Brian and I have two 3G models (AT&T and Verizon), while Vivek and Manveer have two WiFi models. All four are white and all four have 16GB of NAND. The results from our baseline display testing are below:

Display Quality Comparison
  White Level Black Level Contrast Ratio
Apple iPad 2 #1 (AT&T 3G) 406 nits 0.42 nits 966:1
Apple iPad 2 #2 (VZW 3G) 409 nits 0.49 nits 842:1
Apple iPad 2 #3 (WiFi) 352 nits 0.45 nits 778:1
Apple iPad 2 #4 (WiFi) 354 nits 0.41 nits 859:1

There seem to be two different values for white level: either around 400 nits or 350 nits. Black level is pretty variable between 0.41 nits and 0.49 nits, there doesn't seem to be a correlation between white and black levels in our admittedly limited sample size. For our display graphs we simply averaged all four together:

Display Brightness

Display Brightness

Display Contrast

On average the iPad 2 seems to be marginally brighter with a bit worse black levels than the original iPad, resulting in a lower contrast ratio. The display is pretty close to what was in the original iPad and very tough to tell apart. There's still a visible advantage in contrast ratio over the Motorola Xoom.

The GPU: PowerVR SGX 543MP2 WiFi + AT&T 3G
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  • Brian Klug - Monday, March 14, 2011 - link

    That's weird that the apple rep would say those things. The current MacBook is entirely hard plastic, and lacks the matte soft-touch material that used to stain. The current iPad is actually indeed covered in glass the same as the black model, so it will absolutely not stain.

    -Brian
    Reply
  • podpi - Sunday, March 13, 2011 - link

    Hey Anand

    Let me preface this by saying I'm a huge Anandtech fan, and really trust and appreciate your word and the deep, thorough reviews you do. That's what sets you apart from the other tabloidy, first out, sort of content. They do anything to have content out first. I believe some write the reviews before they test the equipment.

    Now, whenever any big product comes out, I may glance at the Engadget/Wired reviews, but I keep checking Anandtech everyday, waiting eagerly in anticipation. The other sites try and up the number of views, so they launch bit by bit and try and draw it out, but also try and be out first with a brief headline-like review. Quality suffers. So I keep checking AT, and waiting for a thorough, unbiased, great reading review. And when it comes out, sometimes up to a week later than the rest. By then the hype had died, down, and it has a chance to come in clean, and see what someone who put the effort in actually thought of the product. The fact that your reviews tend to be a little later show to me how much effort you put in, and how much you care about quality. And this is what I appreciate.

    Now, with the iPad 2 review, it seems to be coming in drips and drabs, to try and what appears to be to keep up with the competition? I think it's natural to get into a race with those sites. But how can you win a race against tech-tabloids? If you blend in with the crowd, then there is little differentiation. I don't think you can have best of both. In my opinion, taking your time and giving a full long in-depth review, like a short story, provides a unique, quality characteristic to your reviews, site and brand.

    Thanks for the great work.
    Terence
    Reply
  • Brian Klug - Monday, March 14, 2011 - link

    Terence,

    I actually agree with you that we really excel at the longer reviews, and it's good to hear that even though we're sometimes much later than everyone else, that it's still useful. I know I enjoy spending a lot of time being exacting about things and sometimes going behind schedule just to uncover absolutely everything.

    We were able to get a preview out on day one this time around just because we have about four people with iPads this time around, where with most things we'll only have one (or in extreme cases, two) units. Each of us working in parallel really sped things up and we thought we'd just share some quick impressions.

    The big review is still coming (today actually - 3/14) and will be the usual length/depth for certain ;)

    -Brian
    Reply
  • Belard - Sunday, March 13, 2011 - link

    As an owner of a Galaxy S series, with poor support from Samsung/at&t and my experience of using an Android device phone for almost 6 months.

    Using the iPad2 was a breeze, its was fast and fun to use. Yeah, the missing USB & SD slots still sucks... but that won't effect sales much.

    We then went across the isle to the Samsung Galaxy Tab which costs the exact same $500. It was easily heavier, thicker... the GUI looks and functions mostly like my own phone so I had no problems "using it".

    So after that experience, we both agreed... why spend $500 on an Android, when we could get a much snappier, larger screen and much easier to use device. BestBuy was sold out.

    If the Galaxy Tab was $300~350 - it would be a more fair deal.
    Reply
  • podpi - Monday, March 14, 2011 - link

    Thanks Brian - looking forward to it :) Reply
  • ssvb - Monday, March 14, 2011 - link

    VFPv2 unit in ARM11 is actually pipelined: http://infocenter.arm.com/help/topic/com.arm.doc.d...

    And yes, naturally it is much faster than Cortex-A8 on floating point code.
    Reply
  • NCM - Monday, March 14, 2011 - link

    AT: "Laying in bed and reading is probably where the difference becomes most apparent."

    You should never read in bed while laying—your partner will be offended.
    It's perfectly all right while lying in bed, however.
    Reply
  • eanazag - Monday, March 14, 2011 - link

    I really appreciated the mouse over images changing comparison. It really gave a clear picture of the difference in the images. Reply
  • retnuh - Wednesday, March 16, 2011 - link

    So.... being the 16th should we assume its getting the super mega awesome thorough testing treatment? Reply
  • UNLK A6 - Thursday, March 17, 2011 - link

    I'd like some clarification about LINPACK and Geekbench. Are these benchmarks created by compiling some portable code for each platform as a measure of floating point performance? Or, is this supposed to be some measure of how fast one can do linear algebra or DSP on the platform? On Mac OS and iOS, one wouldn't compile say LINPACK for this but use the hand-tuned LAPACK/BLAS and DSP routines built into Apple's Accelerate Framework. The difference between the two can be huge. Which do these benchmarks purport to supply--generic floating point performance or available linear algebra and DSP performance? Reply

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