The Exynos 5210 is a same generation as two Cortex-A15 chipset which is based on a dual-core models, maybe it will come to the Galaxy S IV Mini
So far Samsung only launches two new Exynos 5 chipset, which is the Dual 5250 that available on Nexus 10 and Octa 5410 in several variants of the Galaxy S4. But soon it seems there will be a third, the Exynos 5210 chipset, and the chipset is rumored to be used on the Galaxy S IV Mini.
Linux dev tools is committed to the free-electrons.com to develop smdk5210 kit, the model number that also appears in the AOSP port on GitHub mentioned as a “Exynos 5210”. The naming scheme of Samsung Exynos marks a generation on a first digit and the number of cores on a second.
So Exynos 5210 is a same generation as two Cortex-A15 chipset which is based on a dual-core models. Take a note that the Exynos Octa 5 marked as 5410, but using the ARM big.LITTLE architecture has four Cortex-A15s and four Cortex-A7s with only one group of four which works at the same time.
Maybe 5210 will become big.LITTLE with four physical processor cores to work as a dual-core processor (dual-core switching between fast and the other for a more energy-efficient) or simply packed to A15s like 5250. GPU is also not known, for this generation Samsung has been used both the Mali and PowerVR.
Of course, these rumors would have linked between the Exynos 5210 chipset and Samsung Galaxy S IV Mini. So far we know that the Galaxy S IV mini has a 4.3-inch qHD Super AMOLED screen display and runs Android 4.2.2 Jelly Bean on a 1.6 GHz dual-core processor (Has same clockspeed with the Cortex-A15s in I9500 Galaxy S4, which runs at 1.2 GHz A7s).
May be there will also be LTE version of the Galaxy S IV mini, or use Snapdragon processor, like the I9505 Galaxy S IV.