iPad mini Review
by Anand Lal Shimpi & Vivek Gowri on November 20, 2012 6:10 PM ESTGPU Performance
Although most of the industry has done a great job in pushing CPU performance forward, Apple remains largely uncontested when it comes to mobile GPU performance. This isn't really due to some unsurmountable advantage, but rather a willingness to spend on SoC die area and incorporate big GPUs into its designs. The graphics IP all comes from Imagination Technologies, and although it's very well integrated by Apple, there are other SoC vendors that could push the envelope here - they simply have chosen not to.
Things are beginning to change as we saw with the introduction of Qualcomm's Adreno 320 based Snapdragon S4 Pro. NVIDIA's Wayne (Tegra 4?) SoC is expected to be much more competitive on this front as well.
As a result of many of the competing devices using slower GPUs, the mini looks a lot better in our GLBenchmark tests than its competitors.
We'll start out with the raw theoretical numbers beginning with fill rate:
Other than the Nexus 10, the only devices that outperform the iPad mini here are other iPads or the iPhone 5. The mini's low native resolution will help ensure that gaming performance remains high for any currently available content.
Triangle throughput looks very good here although the Tegra 3 based Nexus 7 is able to pull ahead on the offscreen test.
The mini continues to do quite well here vs the competition, although in the heavier triangle tests we see a clear difference between it and the A5X/A6/A6X based iOS devices.
With the synthetics out of the way, we can look at simulated game performance using the Egypt HD and Egypt Classic benchmarks. Remember the on-screen tests are run at native resolution with v-sync enabled, while the offscreen tests are run at 1080p with v-sync disabled for an architectural apples-to-apples comparison.
The mini does reasonably well running Egypt HD, which is a good indicator of future gaming performance on the device (perhaps ~2 years out for high end titles). The iPad 4's GPU does a good job of keeping up with its insane display resolution. The Nexus 7 doesn't fare nearly as well. Tegra 3 manages to run most current games just fine, looking forward though the GPU will probably not age too well.
The offscreen tests show us what everything is really capable of given equal footing, and here the mini looks a lot more middle-of-the-road.
The Egypt Classic test is a much lighter workload, as a result most of these devices hit 60 fps at their native resolution:
Although Egypt HD is a bit overkill for today's games, Classic undershoots by a good amount. The offscreen test however does provide some guidance as to whether or not these devices would be able to hit 30 fps on an appreciably heavier workload:
The mini does a good job here, although the iPad 3/4 and iPhone 5 are clearly quicker.
Overall the mini isn't a performance slouch. If you thought the iPad 2 was fast enough, the mini won't dissappoint. Its GPU remains very good and should be able to handle both present and upcoming iOS games. That being said, if Apple remains true to its typical cadence and gives next year's mini an A6 SoC I think that will end up being a much better match of price/performance.
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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?