The physical panel is thinner in the 5 vs 4. If you use the new panel with 1 less layer you save space but it may cost more. Either way the panel is a nonissue since the iPad mini can use either to get retina vs the 3GS screen in the current mini.
No. Just that the benchmarks suggest that the A6 with the 3 GPU cores is sufficent vice the A5X based on the GPU 1080p benchmarks.
To quote Anand:
"Take resolution into account and the iPhone 5 is actually faster than the new iPad, but normalize for resolution using GLBenchmark's offscreen mode and the A5X and A6 look identical"
No. Just that the a6 performs as well as the a5x on gpu benchmarks.
I can claim that the two perform comparably on benchmarks and the new 554 performs faster and the 554MP2 is equivalent to the 543MP4.
As can be seen the 554MP2 has the same number of SMIDs and GFLOPs as the 543MP4 and should use around half the power of the 554MP4 since it has half the number of cores.
The A6's 543MP3 is short a core but can be clocked higher for less power since it has a process shrink advantage over the older A5X.
Again, the benchmarks indicate that the A6 GPU is on par with the A5X GPU.
One tweak that Apple might want to perform is to move to 128 bit wide memory for the A6. Whether that's worth the effort vs just dropping two 554 cores from the A6X design is debatable.
Again the 554MP2 is equivalent to the 543MP4 according to specs and the 543MP3 very similar to the 543MP4 in benchmarks.
What makes it cheaper is 6-9 months and the use of either the stock A6 clocked higher or a new A6 variant with the 554MP2...possibly A6X culls with 1-2 bad GPUs.
Which isn't important. What is important is maintaining the current price point and margins.
Get over yourself with the "this is science" BS. Of course were talking 2048x1536 aka retina for the iPad and we always have been.
Your problem is you refuse to accept that the 554MP2 is rated as fast as the 543MP4 and that the 32nm 543MP3 @ 266mhz can be further bumped up in speed in comparison to the 45nm 543MP4 @ 250mhz to further make up any performance difference. Especially since iPads traditionally are clocked a little higher than their iPhone equivalent anyway.
Yes the screen is much larger. So what? So is the battery. The A6 is presumed more power efficient than the A5 overall.
It is more than reasonable to state that a retina iPad mini is possible, even probable, in SIX to NINE months in the FUTURE based entirely on what is shipping today. The only question is whether the price point can be achieved, not whether it is technically feasible to build it at the same thickness and weight as the current iPad mini.
Edited by nht - 12/29/12 at 7:52pm