It is a big.LITTLE octa-core with integrated LTE support. It has four Cortex A17 cores backed by four Cortex A7 cores and it can hit 2.2GHz. The GPU of choice is the PowerVR G6200. It supports 2K4K video playback and recording, as well as H.265. It can deal with a 20-megapixel camera, too.
The really interesting bit is the modem. It can handle TD-LTE/FDD-LTE/WCDMA/TD-SCDMA/GSM networks, hence the company claims it is the first octa-core with on board LTE. Qualcomm has already announced an LTE-enabled octa-core, but it won’t be ready anytime soon. The MT6595 will – it is expected to show up in actual devices very soon.
Of course, MediaTek is going after a different market. Qualcomm is building the meanest possible chip with four 64-bit Cortex A57 cores and four A53 cores, while MediaTek is keeping the MT6595 somewhat simpler, with smaller 32-bit cores.