iPad mini Review
by Anand Lal Shimpi & Vivek Gowri on November 20, 2012 6:10 PM ESTCPU 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.
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.
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.
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:
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.
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EnzoFX - Tuesday, November 20, 2012 - link
Just give the 7" the 2048 res treatment, and then double the 10" iPad's resolution once again! lol.Seriously though, it involves support on their end for some software changes, hope they follow through. I doubt they would want this mini to always (even the near future) have this resolution.
Zink - Wednesday, November 21, 2012 - link
LCDs in phones are at 440 ppi with some manufacturers testing almost 500 ppi so with a big investment from Apple, doubling the Retina (264 ppi) iPad's resolution would probably be possible within 1 or 2 years. It wont happen though because of reduced battery life and reduced performance on current hardware for a very subtle gain in image quality. It will probably be 5 years before we see 10 MP+ tablets because battery life and light weight are more important. Mobile SOCs also just aren't fast enough. Even with DDR3 next year the iPad will still only have twice the memory bandwidth it had for the iPad 3, not enough to even attempt 4x the pixels. Getting enough memory bandwidth for double Retina in an iPad will require next generation DDR technology or an even wider memory system which won't be viable anytime soon.jecastejon - Wednesday, November 21, 2012 - link
I just hope the "resolution war" on tablets and phones to be over at 400 dpi, but it should be already over at 350 dpi.From the human sight point of view it is basically over. The extra power and resources should go to better frame rates, better graphics and battery life.
Today there are a few ridiculous measurements or also detrimental technology examples going higher every day like the dynamic contrast on TVs or the megapixel war on tiny consumer sensor cameras. They are misleading advertisement.
500 dpi is useless to 99.9% of humans at almost all ages even if the technology allows to go further and further.
Dribble - Tuesday, November 20, 2012 - link
It's going to age very fast with that ancient cpu, and only 512mb of memory. Basically the moment the mini 2 comes out with a faster cpu this one will be forgotten and apps won't run on it.tbh seems like a rip off to me. It says something that the main reason I read for buying it is the shape of the screen - you've got to love that a lot to buy something that is all the other ways worse then it's much cheaper competition.
marcolorenzo - Tuesday, November 20, 2012 - link
Did you look at the benchmarks? I'm not sure I would say that it is "all the other ways worse then it's much cheaper competition."As a HTC One X user, I can tell you first hand the Tegra 3 isn't the sum of its parts, and the benchmarks that Anand provides proves that.
ltcommanderdata - Tuesday, November 20, 2012 - link
You actually anticipate developers will drop support for the iPad Mini "the moment" the 2nd generation is released? The 1GHz A5/A5X CPU is also used in the iPad 2 and iPad 3, while the slower 800Mhz A5 is used in the iPhone 4S and 5th gen iPod Touch which will both be on sale into 2014 given Apple's 3 year iPhone and 2 year iPod Touch sale cycles as they move down price tiers. The majority of iOS devices are A5 devices and will be for the next year or 2. The vast majority of apps still support 3rd generation devices and 4th generation device support is even higher. Apple's license agreement guarantees the iPad Mini will get iOS 7 and historically each device runs 3 major OS revisions over it's lifespan, so the iPad Mini will likely get OS updates into 2015. The chances of developers dropping support for 5th generation devices like the iPad Mini in the next year or 2 seem slim.Dribble - Wednesday, November 21, 2012 - link
You can think that if you like but 512mb of ram is already a limiting factor, and the cpu/gpu will start to be come one too as time goes by.This is the world of apple - if it's not new then it doesn't matter, and with the mini you are essentially buying something that's already 1 1/2 years old.
drx11 - Sunday, November 25, 2012 - link
Except its 512MB (megabytes, no mb or megabits) of RAM.... but I know what you are saying. I suppose you should have some concern, but then again Apple - at least for the last few years - has been the best at SoC and even my old arsed iPhone 3GS runs well with iOS 5. It could run iOS 6, though it wont have the best features ... so that should change your mind.Unlike Google/OEMs/phone carriers, Apple supports its hardware and you get more out of the hardware - even when the specs are not "as good" as the competition.
DeciusStrabo - Thursday, November 22, 2012 - link
CPU is still ok, GPU the same, but the 512 MB RAM is absolutely something that's a worry. It wasn't enough on my iPad 2 a year ago and it's very annoying in Safari if you have several tabs. And it will only get worse as time moves on. Adding another 512 MB RAM would have cost Apple basically nothing and made the product a lot more future proof (as far as it is possible in this fast-moving segment of a fast-moving industry).karasaj - Tuesday, November 20, 2012 - link
Will it blend?