Yesterday, Samsung introduced the first quad-core Cortex A9 application processor built on the High-k Metal Gate (HKMG) low-power process technology. the The Exynos 4412, clocked up to 1.4GHz, targets smartphones and tablets and enables double the processing power at a 20 percent lower power bill over the 45nm process-based Exynos 4210 (Dual core Cortex A9).
Power efficiency has been improved thanks to hot-plug functionality to support on-off switching for each core and per-core dynamic voltage & frequency scaling (DVFS). The Exynos 4412 is pin-to-pin compatible with the 32nm process based Exynos 4 Dual (aka Exynos 4212) making it simply a replacement part for existing designs based on Exynos 4212.
The new processor also features a video hardware codec engine capable of recording and playing 1080p video @ 30fps (MPEG4 ASP/H.264 HP/H.263 P3 encoding and decoding, and MPEG2/VC1 and WMV9 decoding) , an embedded image signal processor interface for high-quality camera functionality and an HDMI 1.4 interface.
Here’s a system diagram of a typical design based on Exynos 4212 / 4412 processors:
Samsung also released a promo video showing the Exynos 4 Quad can support WQXGA resolution (2560×1600), benchmarks between Exynos 4 Quad against the previous generation Exynos 4 processor both in terms of CPU, GPU and power consumption, 3D gaming and 3D stereoscopic capabilities.
The Exynos 4 Quad is already in mass production and Samsung announced it will be used in the version version of Samsung Galaxy smartphone (which will officially be announced in May).
You may be able to find more information on Samsung Exynos 4 Quad page.