During the event where the iPad Mini was announced, Apple also introduced a new normal-sized iPad. We compared this new iPad 'Retina' with the last iPad. Then referred to as the 'new' iPad, we will now call it iPad 3, and the Retina will be called the iPad 4. This article will discuss the differences between the two.
Some find it strange that, less than 6 months after the iPad 3, Apple is already releasing an iPad 4 without introducing major changes. The company did the same with the iPad 2, even if a little more time had passed in that case. That second version of the iPad exists in two versions, one with a 45nm A5 SoC and the other with a 32nm SoC. The latter was announced together with the iPad 3, and is therefore still quite recent. The iPad 2 is still being sold as 'budget' solution, while the iPad 3 is no longer being manufactured and instead replaced by the iPad 4.
The differences between the iPad 3 and 4 are not very obvious at first sight, and mainly have to do with the hardware. The new iPad now also has a Lightning connector, following the iPhone 5, iPad Mini, iPod Touch and iPod Nano. The iPad 2 will keep the old connector.