Monday, January 7, 2013

Tegra 4 SOC, First Quad-core Cortex-A15 Chip

Nvidia unveiled its Tegra 4 processor Sunday at CES.


The Tegra 4 is based on ARM's quad-core Cortex-A15 processor and also packs in 72 graphics processing unit (GeForce GPU) cores, six times the GPU horsepower of Tegra 3. The four Cortex A15s will run at up to 1.9GHz. LP-DDR3 dual-channel memory interface is supported. 4G LTE modem is optionally built in.


High-Dynamic Range (HDR) capture is essential for high quality photography. HDR combines a series of photographs taken at different exposure settings to provide a wider dynamic range and is processor intensive. The iPhone 5 takes about 2 seconds to capture an HDR image, said Nvidia CEO Huang, while the Tegra 4 can snap two shots almost simultaneously and combine them.

Video and Battery Life

The Tegra 4 will also enable 4K ultra high-definition video support. Tegra 4 includes a second-generation battery saver core for low power during standard use, and PRISM 2 Display technology to reduce backlight power while delivering superior visuals.

Tegra 4 consumes up to 45 percent less power than its predecessor, Tegra 3, in common use cases. And it enables up to 14 hours of HD video playback on phones.

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