The MT6589 is a new quad core processor from Mediatek, a China based processor manufacture. The CPU is being used by the new Hisense HS-T958 smartphone. The Mediatek MT6589 is based on Cortex A7 architecture and runs at 1GHz clock speed.
The MT6589 is backed by PowerVR Series 5XT GPU that supports full HD playback. The CPU is fully capable of handling 13 mega pixel camera with integrated ISP and 1080p recording at 30 FPS. Here are its benchmark result where it scored over 14000 in the AnTuTu benchmark. Also check out MTK6577 review which is made by Mediatek.
The Mediatek MT6589 is the coolest smart phone chip with 4 cores.