Published on December 10th, 2012 | by John I.0
Apple’s 4th generation iPad A6X core
The 4th generation of iPads come powered by the new A6 "Extreme" processor (A6X), which claims to be one of the most effective cores ever integrated into a tablet. However, Apple hasn't shared much about it's latest product specifications, and all you get to live with is a blank "twice as fast then A5X" statement. If you're not satisfied with this statement, this article will give you a true insight over Apple's new top-of-the-range chip.
The new A6X is powered by the renowned ARMv7 architecture which comes pre-clocked at the impressive 1.4 Ghz speed. This is what makes this chip 2x faster than the previous generation of A5X processors (running on a custom build of Cortex A9). Unlike the past cores, the new A6X can also render graphical objects and textures at much higher speed, making it ideal for the new video-intensive apps. So, what's the secret behind all this?
Increased CPU Power
Apple has also included this powerful chip in their iPhone 5 flagship, but on the iPad 4 they increased the clock speed even more, up to an amazing dual 1.4 Ghz rate. And if the iPhone 5's A6X was already twice as fast as two standard A5 cores, imagine how powerful this new tablet really is.
Different GPU Architecture
When it comes to videos and multimedia content it seems that Apple has enhanced their new iPad's video card in order to make it more efficient. Thus, instead of jamming four SGX543 GPUs as they did in the iPad 3, it seems that Apple has doubled their number in order to speed up pixel rendering. It's also to be noted that in spite of featuring 4 PowerVR's chips in the iPad 3, two of them were used solely to keep up with the Retina display, which boasts an amazing 2048x1532 resolution.
Apple could have also doubled their clock frequency for their new iPad flagship in order to retain the same number of GPUs. That's very plausible since integrating 2x more graphical chips into the same space seems like a very tough goal to achieve, and Apple could have saved on their production costs by using this trick.
Integrating a new generation of PowerVR cores (a more powerful one) is another possibility, although a quite unlikely one. The new PowerVR Series6 has been announced to begin sampling somewher in mid-2013, and only one processor is known to feature their new architecture. For this reason, a gimmicky in the SGX543's clock speed seems like the most credible version to double the iPad's 4 graphical capacities.
Increased battery life?
Apple claims that their new iPad can last for up to 10 hours of intensive use, which is 2 hours more than the iPad's 3 expectations. How is that possible? Well, the answer lies in the integration of their new A6X CPU and upgraded GPU cores. In order to efficiently insert them into the tablet, Apple has resorted to a more power efficient standard- the 32nm (compared to the previously used 45nm one). This allowed them to increase their device's power and battery life while maintaining the same dimensions.
Since Apple hasn't made any official announcements based on the insides of their new processor, one can only guess what lies beneath the iPad's case. However, we're quite confident that Apple gas paired two A6 ARMv7 cores and four upgraded PowerVR SGX543 GPUs in order to increase their tablet's performance. And given the success they rejoiced with the iPhone 5 flagship, iPad 4 is expected to remain on top of many tablets for quite some time.