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Tuesday, February 19, 2013
NVIDIA Introduces Tegra 4i, Its First Integrated Tegra LTE Processor, Reference Smarphone


NVIDIA today introduced its first fully integrated 4G LTE mobile processor, the NVIDIA Tegra 4i, which the company claims its significantly faster yet half the size of Qualcomm's competitive chips.

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 optimized for integration. Nvidia claims that the result is an extremely power efficient, compact, high-performance mobile processor that enables smartphone performance and capability previously available only in expensive super phones.



  Tegra 4 Tegra 4i
Processor  
CPU Cores 4 + 1 4 + 1
CPU Architecture ARM Cortex-A15 ARM Cortex-A9 r4
Max Clock Speed 1.9 GHz 2.3 GHz
GPU  
Custom GPU Cores 72 60
Computational Photography Architecture Yes Yes
Memory  
Memory Frequency DDR3L & LPDDR3 LPDDR3
Memory Size 4 GB 2 GB
Display  
LCD 3200 x 2000 1920 x 1200
HDMI 4K (UltraHD) 1080P
Modem  
Architecture Optional LTE Chipset Integrated i500 LTE
LTE Cat 3/Cat 4+CA 100-150
Mbps DL (50 Mbps UL)
FDD and TD-LTE, TMs 1-8
Cat 3/Cat 4+CA 100-150
Mbps DL (50 Mbps UL)
FDD and TD-LTE, TMs 1-8
HSPA+ Cat 24/6 42 Mbps DL (5.7 Mbps UL)
Plus cats 6, 8, 10, 14, 18
Cat 24/6 42 Mbps DL (5.7 Mbps UL)
Plus cats 6, 8, 10, 14, 18
TD-HSPA Cat 24/6 4.2 Mbps DL (2.2 Mbps UL)
Including TD-SCDMA
Cat 24/6 4.2 Mbps DL (2.2 Mbps UL)
Including TD-SCDMA
Package  
Package Size/Type 23x23 BGA
14x14 FCCSP
12x12 POP
12x12 FCCSP
Process 28 nm 28 nm


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 for console-quality gaming experiences and full 1080p HD displays. 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 recently announced in Tegra 4. This delivers features including always-on high dynamic range (HDR) capabilities, first tap to track functionality and first panoramic photos with HDR.

Chimera architecture provides the power to conduct nearly 100 billion mathematical operations per second to perform image processing, using computational techniques used in X-ray CT scanners, deep space telescopes and spy satellites.

The Chimera architecture also includes persistent tap-to-track technology, which allows users to touch the image of a person or object to focus on within a scene. The camera then locks in on that subject whether it moves or the camera is repositioned to a better angle, while maintaining proper focus. Persistent tap-to-track also adjusts the camera exposure depending on any movement, helping avoid under- or over-exposure of the image's subject or background.



Nvidia also officially today announced the NVIDIA i500 LTE modem, which was previewed at CES. The modem is based on Icera's soft modem technology and implements the entire modem baseband in software. Nvidia claims that this approach allows the modem to dynamically allocate more processing resources to the most challenging processing functions required at any given time, making it much more efficient than traditional hardware-centric implementations.

Icera's modem can be extended through software updates providing feature upgrades and performance enhancements.

ASUS VivoTab Windows RT tablet is equipped with Nvidia's first-generation LTE multi-mode modem, the i410. The i410 is now certified for use on AT&T?s LTE multi-mode network and is a testament to the capabilities of the soft modem architecture. It's been the foundation for the i500, Nvidia's second-generation LTE modem, which has more than five times the computational capacity of its predecessor.

 NVIDIA i500 SPECIFICATIONS
Baseband  
LTE Cat 3/Cat 4 100-150 Mbps DL (50 Mbps UL)
FDD and TD-LTE, TMs 1-8
Carrier aggregation Dual IceLink™ interfaces for downlink CA
Up to 10 MHz+10 MHz
HSPA+ Cat 24/6 42 Mbps DL (5.7 Mbps UL)
Plus cats 6, 8, 10, 14, 18
TD-HSPA Cat 24/6 4.2 Mbps DL (2.2 Mbps UL)
Including TD-SCDMA
2G GSM, GPRS, EDGE
Up to class 12
2G/3G voice Multi mic AEC/noise reduction
AMR-WB, AMR-NB, FR, EFR, HR
LTE voice CSFB and VoLTE (IMS)
CSFB with SI tunneling, VoLTE with SRVCC
Other features IceClear™ Interference cancellation
Package 7mmx7mm package
Process 28 nm
RF  
RF Bands Single-chip multi-band FDD and TDD LTE/HSPA+/EDGE and TD-SCDMA
RX diversity Multi-band RX diversity
FDD Multi-band FDD HSPA and LTE functionality: Bands 1 – 14, 17 – 21, 24 – 26, 27, 29, 90
TDD Multi-band TDD LTE and TD-SCDMA functionality: Bands 33 - 41
Package 6.5 mmx6.5 mm package
Process 65 nm CMOS


NVIDIA also introduced 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 to help get them to market quicker.



The Tegra 4i mobile processor will be demonstrated in the NVIDIA booth at the 2013 Mobile World Congress show in Barcelona, Spain, on Feb. 25-28.


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