The Samsung Exynos 5 Octa chipset has brought a lot of excitement in last CES and the SamsungExynos Twitter account is slowly fanning the flames with little teasing tidbits of info like the image above of the chipset.
It’s a 3D render of the SoC rather than a photo of a production unit. In the same tweet, Samsung is talking up the energy efficiency of the chipset.
In case you missed it, the Exynos 5 Octa uses ARM’s big.LITTLE design. It has two groups of four processor cores – the big group consists of four blazing fast Cortex-A15 CPUs, while the LITTLE group has four power-efficient Cortex-A7 cores. That’s eight-cores in total, hence Octa. Only one of the groups is active at a time, the other goes to sleep (similar to how NVIDIA’s Tegra 3 chipset works, but with more low-power cores).
Samsung claims a 3.3x reduction in power usage thanks to the A7 cores, which are enough to handle menial tasks and are only 13% of the size of an A15 core, so they’re cheap. The overall performance is reportedly the same as an A15-only design. The switch between core groups happens in 30-50ms.
You can read more tech details on the Samsung Exynos 5 Octa chipset over here and get even techier details in this PDF.
Samsung has announced during CES its Exynos 5 Octa SoC featuring four ARM Cortex A7s and four ARM Cortex A15s. Unusually absent from the announcement was any mention of the Exynos 5 Octa’s GPU configuration. Given that the Exynos 5 Dual featured an ARM Mali-T604 GPU, we only assumed that the 4/8-core version would do the same. Based on multiple sources, we’re now fairly confident in reporting that the with the Exynos 5 Octa Samsung included a PowerVR SGX 544MP3 GPU running at up to 533MHz.
The PowerVR SGX 544 is a lot like the 543 used in Apple’s A5/A5X, however with the addition of DirectX 10 class texturing hardware and 2x faster triangle setup. There are no changes to the unified shader ALU count. Taking into account the very aggressive max GPU frequency, peak graphics performance of the Exynos 5 Octa should be between Apple’s A5X and the A6X (assuming Samsung’s memory interface is just as efficient as Apple’s) :
It’s good to see continued focus on GPU performance by the major SoC vendors, although I’d like to see a device ship with something faster than Apple’s highest end iPad. At the show we heard that we might see this happen in the form of an announcement in 2013, with a shipping device in 2014.