Nvidia Announces Tegra 4i

 Nvidia launched its Tegra 4 'wayne' SoC, a high-end ARM processor with four Cortex-A15 cores and a 72-core GPU. The Tegra 4 is Nvidia's new high end
ARM chip, made for 'super phones' and  tablets. The Tegra 4 does appear to be an expensive and power hungry chip, so in order to complement its flagship
chip Nvidia presented the Tegra 4i. The Tegra 4i is a smaller and more energy efficient chip that is set to release at the end of 2013.
                The Tegra 4i is a nanometer chip, but smaller, because Tegra 4i doesn't have a Cortex-A15 cores of the Tegra 4, but revised Cortex A9 cores.
Nvidia claims it's improved the Cortex A9 design, presented the changes to ARM. Which then was integrated into fourth revision of the Cortex A9 core.
                 This latest revision should be 15 to 30 percent faster at the same clock speed than the previous one. The cores in the Tegra 4i run at an unprecedented
clock speed of 2.3GHz, and Nvidia claims that CPU speed is in fact twice as high as that of the Tegra 3. It's the first SoC to feature the new R4 version of the Cortex A9,
The Tegra 4i also has a fifth energy efficient core that takes over when only little power is required.
                The Tegra 4i has only 60 GPU cores compared to the 72GPU cores of the Tegra 4. Nvidia hasn't specified anything yet about the memory interface on the new chip.