Published: December 20, 2012 12:17 PM
By Régis Jehl
Translated by: Catherine Barraclough
Nvidia's new Tegra 4 mobile SoC should make its first appearance at the CES tech show in Las Vegas next month. In the meantime, info about the new chip is slowly starting to leak out.

Nvidia's Tegra 4 is expected to be quad-core ARM Cortex A15 chip clocked at 1.8 GHz. The Tegra 4 is also rumoured to use 28 nm transistors, compared with 40 nm for the Tegra 3. Performances should therefore be higher with no real increase in power use. In fact, power consumption could even drop!

A few more specs have now leaked out about "Wayne", the codename of the Tegra 4, which is due to take over from "Kal-El", the Tegra 3.

Nvidia tegra 4 wayne

According to a document seen by Chiphell, the GPU in the new Tegra will boast 72 cores compared with just 12 in the Tegra 3. This should make for at least six times the graphics processing power in the new SoC.

This extra power will be particularly useful for high-end smartphones, which are increasingly moving towards Full HD screen def. It could also prove handy for top-of-the-range tablets looking to use 2560 x 1600 pixel displays. That said, the Tegra 4 is still no match for PC graphics cards. The Nvidia GeForce GTX 680, for example, uses 1536 CUDA cores, and the basic GeForce GTX 650 Ti uses 768, with power use that can't even compare. Note, however, that Jen-Hsun Huang announced back in March 2012 that the Kepler architecture used in these cards could one day be used in "superphones".

It seems that the Tegra 4 SoC will be able to decode and encode 2560 x 1440-pixel video and that it'll be able to display 2560 x 1440-pixel video images at 60 Hz, Full HD at 120 Hz and UHD (3840 x 2160 pixels) at an as yet unknown frequency. USB 3.0 support is also mentioned, which would certainly be handy for moving large amounts of data (videos, music) between devices.

> Tablet Reviews

> Smartphone Reviews
ADVERTISING