iPad mini Review
by Anand Lal Shimpi & Vivek Gowri on November 20, 2012 6:10 PM ESTWiFi Performance
The mini uses the same Broadcom BCM4334 WiFi controller as the iPhone 5. The WiFi stack supports dual-band 802.11n as well as fallback to 802.11b/g.
iPad mini WiFi controller - image courtesy iFixit
Since the mini uses the same WiFi stack as the iPhone 5, you get support for 40MHz channels on 5GHz networks (20MHz on 2.4GHz). The maximum PHY rate supported is 72Mbps on 2.4GHz and a whopping 150Mbps on 5GHz.
In terms of actual performance, this works out to be a maximum of just under 100Mbps on a 5GHz network with 40MHz channels. In practice I wasn't able to get higher than 91Mbps, although Brian managed a very nice 95.7Mbps on the iPhone 5 in his tests. On average I pulled nearly 78Mbps on the mini on a 5GHz network. Move down to 2.4GHz and performance is cut roughly in half (peak performance is around 41Mbps).
I didn't have any issues with WiFi reception or performance in my testing of the iPad mini. The only complaint I really have at this point is I would love to see more intelligence when it comes to switching between multiple known APs of varying signal strengths. This is a problem on pretty much all devices I play with, they tend to want to stay on an existing network even if its performance drops significantly and there is another, better performing network that could be jumped to. I feel like some more intelligence in this department (testing nearby networks, looking for an ability to seamlessly switch and get better performance) would help mitigate a lot of the inevitable "hey my WiFi is broken" complaints we often see with a move to a new WiFi stack. You could also argue that we just need better designed WiFi deployments.
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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?