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Tegra is a system on a chip (SoC) series developed by Nvidia for mobile devices such as smartphones, personal digital assistants, and mobile Internet devices. The Tegra integrates an ARM architecture central processing unit (CPU), graphics processing unit (GPU), northbridge, southbridge, and memory controller onto one package. Early Tegra SoCs are designed as efficient multimedia processors, while more recent models emphasize gaming performance without sacrificing power efficiency. == History == The Tegra APX 2500 was announced on February 12, 2008, the Tegra 6xx product line was revealed on June 2, 2008,〔(【引用サイトリンク】title=Nvidia Rolls out "Tegra" Processors )〕 and the APX 2600 was announced in February 2009. The APX chips were designed for smartphones, while the Tegra 600 and 650 chips were intended for smartbooks and mobile Internet devices (MID).〔(【引用サイトリンク】format= )〕 The first product to use the Tegra was Microsoft's Zune HD media player in September 2009, followed by the Samsung M1.〔(New Nvidia Tegra 3 at 1.5GHz )〕 Microsoft's KIN was the first cellular phone to use the Tegra;〔(Microsoft KIN first to use tegra )〕 however, the phone did not have an app store, so the Tegra's power did not provide much advantage. In September 2008, Nvidia and Opera Software announced that they would produce a version of the Opera 9.5 browser optimised for the Tegra on Windows Mobile and Windows CE. At Mobile World Congress 2009, Nvidia introduced its port of Google's Android to the Tegra. On January 7, 2010, Nvidia officially announced and demonstrated its next generation Tegra system-on-a-chip, the Nvidia Tegra 250, at Consumer Electronics Show 2010. Nvidia primarily supports Android on Tegra 2, but booting other ARM-supporting operating systems is possible on devices where the bootloader is accessible. Tegra 2 support for the Ubuntu GNU/Linux distribution was also announced on the Nvidia developer forum. Nvidia announced the first quad-core SoC at the February 2011 Mobile World Congress event in Barcelona. Though the chip was codenamed Kal-El, it is now branded as Tegra 3. Early benchmark results show impressive gains over Tegra 2,〔(【引用サイトリンク】title=Nvidia's Kal-El Demonstration Marred By Benchmark Confusion )〕 and the chip was used in many of the tablets released in the second half of 2011. In January 2012, Nvidia announced that Audi had selected the Tegra 3 processor for its in-vehicle infotainment systems and digital instruments display.〔Peter Clarke, EE Times. "(Audi selects Tegra processor for infotainment, dashboard )." January 17, 2012. Retrieved January 17, 2012.〕 The processor will be integrated into Audi's entire line of vehicles worldwide, beginning in 2013. In summer of 2012 Tesla Motors began shipping the Model S all electric, high performance sedan, which contains two NVIDIA Tegra 3D Visual Computing Modules (VCM). One VCM powers the 17-inch touchscreen infotainment system, and one drives the 12.3-inch all digital instrument cluster."〔(【引用サイトリンク】 title=Tegra Automotive Infotainment and Navigation )〕 In March 2015, Nvidia announced the Tegra X1, the first SoC to have a graphics performance of 1 teraflop. At the announcement event, Nvidia showed off Epic Games' Unreal Engine 4 "Elemental" demo, running on a Tegra X1. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tegra」の詳細全文を読む スポンサード リンク
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