Why didn't apple call the new iPad the iPad 3? You might say they are getting rid of version numbers, but that's not the case as seen with the iPhone 5.
Apple's iPad and iPhone's processors work on a pipeline. A4 for the first iPad, the it moves to the iPhone 4 clocked 20% slower. A5 for the iPad 2, moved to the iPhone 4S again a fifth slower.
Now with the 'new iPad', A5X is absolutely the same. It is not more powerful. Not even graphically, this is because of the retina display. 4X the pixels, 4X the graphics fillrate needed to get the same visual image just with more aliasing.
Key points: new iPad does not feature a new SoC. It's just A5 with the needed GPU upgrade to keep up with the retina display.
The iPhone 5 features a dual core but much faster instructions per clock CPU. This is like qualcomm's chips. The problem is: this is clocked 20% slower than the iPad's given the pipeline. Now this means the iPad will be at the 1.6 GHz range which will definitely require much higher voltage bins, and just will not happen.
But with the A6 it features frequency scaling - kinda like intel's turbo. The iPad 3 will be able to run at 1.3GHz longer, while the iPhone will be throttled down after a bit of use. TDP/ heat constraints have never being a problem for iOS devices as they are all under locked, but A6 might be nearly hitting this gap. Next year, apple will probably follow intel's tick tock cycle and feature a A7 with simultaneous multithreading (dual core four threads) and more cache to boost IPC even more without much more power, because even with the ram speed upgrade a good portion of the time the chip is waiting for data from NAND.
So what does this have to do with the iPads ? A5X was a stopgap. The new iPad is thicker. That never happens. The only real feature is the retina display. The A6 wasn't ready, lightning wasn't ready, a redesign wasn't ready. People wanted a new iPad, and apple delivered a new iPad. Not the iPad 3.
Hurr durr it's the 4th iPad, not 3. So is the iPhone.
Apple's iPad and iPhone's processors work on a pipeline. A4 for the first iPad, the it moves to the iPhone 4 clocked 20% slower. A5 for the iPad 2, moved to the iPhone 4S again a fifth slower.
Now with the 'new iPad', A5X is absolutely the same. It is not more powerful. Not even graphically, this is because of the retina display. 4X the pixels, 4X the graphics fillrate needed to get the same visual image just with more aliasing.
Key points: new iPad does not feature a new SoC. It's just A5 with the needed GPU upgrade to keep up with the retina display.
The iPhone 5 features a dual core but much faster instructions per clock CPU. This is like qualcomm's chips. The problem is: this is clocked 20% slower than the iPad's given the pipeline. Now this means the iPad will be at the 1.6 GHz range which will definitely require much higher voltage bins, and just will not happen.
But with the A6 it features frequency scaling - kinda like intel's turbo. The iPad 3 will be able to run at 1.3GHz longer, while the iPhone will be throttled down after a bit of use. TDP/ heat constraints have never being a problem for iOS devices as they are all under locked, but A6 might be nearly hitting this gap. Next year, apple will probably follow intel's tick tock cycle and feature a A7 with simultaneous multithreading (dual core four threads) and more cache to boost IPC even more without much more power, because even with the ram speed upgrade a good portion of the time the chip is waiting for data from NAND.
So what does this have to do with the iPads ? A5X was a stopgap. The new iPad is thicker. That never happens. The only real feature is the retina display. The A6 wasn't ready, lightning wasn't ready, a redesign wasn't ready. People wanted a new iPad, and apple delivered a new iPad. Not the iPad 3.
Hurr durr it's the 4th iPad, not 3. So is the iPhone.