Previously codenamed ‘Project Grey’, the Tegra 4i processor features 60 custom NVIDIA GPU cores; a quad-core CPU based on ARM’s newest core — the R4 Cortex-A9 CPU — plus a fifth battery saver core; and a version of the NVIDIA i500 LTE modem. Tegra 4i’s new 2.3 GHz CPU was jointly designed by NVIDIA and ARM.
Utilizing the same architecture as Tegra 4’s GPU, Tegra 4i features five times the number of GPU cores of Tegra 3. It also integrates an optimized version of the NVIDIA i500 software-defined radio modem which provides LTE capabilities. Tegra 4i mobile processor’s camera capabilities include the NVIDIA Chimera Computational Photography Architecture also available in Tegra 4.
NVIDIA also unveiled its reference smartphone platform code-named Phoenix for the Tegra 4i processor. Phoenix is a blueprint that phone makers can reference in designing and building future Tegra 4i smartphones.