A couple of photo's and specification details have surfaced on the web with the topic, Samsung Galaxy S IV, yes Sir. The parts and specs explained are preliminary but Samsung seems to be pursuing the Big.LITTLE route. A photo surfaced showing more info alright. Behind closed doors at CES Samsung has been showing the 5" AMOLED screen based phone that handles a resolution of 1920x1080 pixels. The new generation screens should be more energy efficient. The Exynos 5 Octa SoC is likely to be used with the Galaxy S IV, that is an octa-core processor.
Apparently the Exynos 5 Octa does not have an embedded MALI chip for graphics anymore, yet the has bee swapped out for a graphics processor from the PowerVR line of products. Likely the PowerVR SGX544MP3 with it's GPU cores clocked at 533MHz.
Anyway, have a look at the photo's of some leaked slides courtesy of Anand and Beyond3D: