CPU Performance

As I mentioned before, the bulk of the innovation in the iPad mini is around form factor - the hardware platform itself is mostly a reuse of previous designs to keep costs low. The mini retains the 32nm A5r2 SoC as the iPad 2,4 and 5th gen iPod Touch. Despite the smaller size, it also uses the same 1GHz CPU clocks as its bigger brother. Performance is thus identical to the iPad 2,4, and a bit faster than the iPhone 4S. I found that the increase in clock speed does help to mask the fact that this isn't a Swift based platform, although going between the iPad mini and 4 does reveal an appreciable performance difference.


I
mage courtesy iFixit

We're still very limited in good, cross-platform CPU benchmarks. We, once again, turn to JavaScript tests run in the browser. For all of the tablets tested here we're using Chrome for Android and Mobile Safari for iOS.

SunSpider has been a part of all of our mobile performance testing for quite a while now. It's not the perfect benchmark, but the test ends up being a good measure of browser performance as well as cache latency and CPU performance.

SunSpider Javascript Benchmark 0.9.1 - Stock Browser

The iPad mini's two Cortex A9 cores running at 1GHz give it performance that is pretty much identical to the iPad 2 and 3, which also feature the same CPU. In the grand scheme of things however, the mini's performance is decidedly last generation. That's not to say that it's bad, it's just that the Swift based architecture in the A6/A6X is significantly better.

Google's Octane benchmark is a much larger test than SunSpider, but we're still looking at JavaScript performance. Octane includes all 8 of the tests from Google's older V8 benchmark but adds 5 new ones including a PDF reader, 3D bullet physics engine and portable 3D game console emulator all built in javascript.

Google Octane Benchmark v1

Here the mini shows its age a bit, but mostly because of its conservative CPU clock speeds. Google's Nexus 10 is finally able to flex its muscle here and show just what the Cortex A15 is made of, even outperforming Intel's Atom in the RAZR i. Also note the performance increase compared to the iPhone 4S/iPod Touch, that's purely due to the clock speed advantage (1GHz vs 800MHz). I don't believe Apple picked the wrong clocks for the A5 in the mini as battery life remains a primary concern for this device.

Finally we have Kraken, a seriously heavy javascript benchmark built by Mozilla. Kraken focuses on forward looking applications that are potentially too slow to run in modern browsers today. The result is much longer run times than anything we've seen thus far, and a very CPU heavy benchmark:

Mozilla Kraken Benchmark

Once again the mini equals the performance of the iPad 2 and 3, but remains appreciably slower than the iPad 4/iPhone 5. Google's Nexus 10 absolutely dominates in this test, continuing to outperform Intel's Atom based RAZR i.

A Retina mini? GPU Performance
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  • Constructor - Monday, November 26, 2012 - link

    You keep it from even installing any of the offered updates and then you complain that it doesn't work as well as it should?

    Look into a mirror one of these days if you're searching for the source of your problems.
  • KPOM - Wednesday, November 21, 2012 - link

    I have a 3rd gen iPad and decided to give the mini a try. I was a little reluctant because of the display (it is definitely a step down from the 3rd gen), but I agree with Anand that the form factor is great. The full size iPad is a little heavy to hold and read on a train or airplane, but the mini excels at that. Hopefully Anand is wrong and Apple can figure out a way to get a Retina Display into the mini form factor sometime in 2013. If they do, I think that the mini would actually be the preferred iPad choice overall.

    I had an original Kindle Fire last year, but never used it much and wound up selling it. I think I'll keep the iPad mini, though for now I also think I'll keep the 3rd gen iPad.
  • ABR - Wednesday, November 21, 2012 - link

    The Mini is all well-and-good for the "carry-it-anywhere-squint-and-peer" crowd, but as someone who mainly uses my iPad on the couch and such around the house, I'd rather have one with a BIGGER display, not smaller. Make it thinner so there's no weight penalty, and with a display about the size of an 8-1/2x11 sheet, or a standard magazine. (Particularly since magazine and other media consumption is a big use.)
  • uhuznaa - Wednesday, November 21, 2012 - link

    There's no way to make it thinner or just weight the same with a larger display. The display is a major power consument in tablets, make it larger, brighter or in a higher resolution and it draws *much* more power.
  • PrayForDeath - Wednesday, November 21, 2012 - link

    Hey Ananad,

    When can we expect to see the iPad 4 review? I'd love to read your in-depth analysis on the new hardware and how it compares to previous generations.
  • chleuasme - Wednesday, November 21, 2012 - link

    Why on your pictures for the comparison of the letter 'e' and the 'topic of the webcast' text, the RGB components of pixels appear vertically aligned on the mini, and horizontally aligned on the iPad 2. And the contrary on the Safari icon comparison on the mini vs the 4?
  • chleuasme - Wednesday, November 21, 2012 - link

    And same* thing* on the Safari icon
  • A.T. - Wednesday, November 21, 2012 - link

    Please some "fanboy" leaves an and staff alone. I think they did a fair comparison, and comment about it. It is foolish to say that is 1 and a half year technology, why don't those fanboy army try to make it and fit the 45nm A5X or A6 with holding 10 hours battery life without make it thicker.

    It is a nice device for reading and easy to carry around but there is a downsize to become a productive tool at work. The price is relatively expensive than other, but the thing is Apple is a company that unlike google and amazon to cut their throat and sell it with no profit because Apple is software and hardware company and Google and amazon is ads and service company.
  • pliablemoosethebanned - Wednesday, November 21, 2012 - link

    I bought a N7, and use it every day,

    I'll be selling the N7 and replacing it with a mini, will likely wait till it hits the Apple refurb store though.

    Build quality: the iPad mini wins, hands down,

    Form factor: again, a big plus, the thing feels more like an e-reader than a tablet, and the extra screen real estate does make a big difference. 7" is just too small for a great smaller tablet experience.

    Software: Yeah, iOS is due for an overhaul, but frankly, I have never used widgets that much, preferring to use folders to group the actual apps. I tire of widget overload, saw an SGN II the other day with the home screen filled with widgets and it was way too damn busy.

    And as far as the "OMFG, Anand is biased" comments, give it a flipping rest, the man benches the crap out of the latest and greatest on a nearly daily basis, can he be allowed to like something you don't?

    Anand likely cost Apple millions by proving the antenna system on the iP4 was defective, and he has some very strong empirically proven data that the iPad mini is a parts bin device with a screen that lags the industry. Yet the device meets his needs.
  • Spoelie - Thursday, November 22, 2012 - link

    http://www.displaymate.com/iPad_mini_ShootOut_1.ht...

    It seems the reflections are the worst of its problems, as this tablet is more likely to be used outside

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