Wednesday, November 9, 2011

Tegra processor is built-in Geforce GPU, provide hd decoding and 3 D graphics computational performance

From the birth of PC that day, the PC and mobile terminal will be destined to the development of the two big main line, after decades of development, we see the desktop computer market share falling to notebook, tablet computer, as a representative of the mobile terminal get more attention, more and more people need can be connected network at any time and place, HP DM3 screen and has a high life characteristics of the product, when mobile Internet development to a certain scale, the global IT giants are faced with new challenges.

This laptop core video card really made introductory show alone had a difficult time, but in the mobile market is NVIDIA big harvest, a brand Android tablet computer springing up come, with good performance and long-term partnerships, NVIDIA Tegra 2 became the buzzer hives system (Honeycomb) the most mainstream tablet computer processor, Compaq F500 fan is expected to exceed shipments years and become flat this year the winner of the market. However we also in the choose and buy Tegra 2 dual-core flat, Tegra 3 four processors as planned released at the end of the year.

Tegra 2 launch of processor tablet computer in this year to prominence on CES, with low energy consumption and high efficiency of the performance, the first half of almost without meeting any opponent. In the second half, qualcomm, Texas instruments began to send force flat market, can also be a lenovo, huawei's partner, HP DV4 fan is expected to start next year's competition intensifies, so end of said four processors coming just is time.

More than ten for years, more nuclear processing in the calculation of the revolution has been in the core position, from mononuclear to dual-core to four nuclear, Tegra every upgrade has brought great changes. This time, four nuclear Tegra 3 processor built a Companion (with nuclear), the equivalent of five nuclear design, only with the performance of the rest of the core nuclear no so high, but in the entire structure plays an important role.

From one generation products began to, Tegra processor is built-in Geforce GPU, provide hd decoding and 3 D graphics computational performance, laptop screen to make the environment of the CPU and GPU balance. In subsequent Tegra products, not only quad-core CPU, Geforce GPU also get a large degree of strengthening, video broadcast and game is flat computer two important applications, users should not only performance is strong and to save electricity, Tegra 3 face quite a challenge.

Tegra 3 is the world's first mobile platform four processors, but if you've seen the internal architecture, you will find in four of ARM Cortex A9 architecture outside the core also have a core, it is called a Companion, we can call it with nuclear, it and other four core star have what distinction?

Tegra 3 are not be called five processors, because Companion (with nuclear) adopt the special manufacture process and low laptop keyboard power consumption silicon into, be able to low frequency to run, and other four of the core is the standard silicon process, so can achieve higher frequency, so we can call it the Lord core.

Tegra 3 the "4 + 1" in the combination of the work also has its own characteristics, Companion (with nuclear) usually work in standby, deal with mail, accept FaWei bo these "free time", four of the core work more "hard", undertake the reading web pages, hd broadcast, 2 D / 3 D game these complex applications, this need Tegra 3 vSMP (variable symmetric multiprocessing technology).

Actual operation, Companion (with nuclear) work frequency range in 0 MHz ~ 500 MHz between, four of the core work frequency range in 0 GHz ~ 1.4 GHz (as the work of the core number), they are based on ARM Cortex A9 architecture, HP G71 keyboard with nuclear exists to more long endurance, four nuclear core is mainly responsible for the performance output. Although we have not get detailed data, but officials say vSMP technology makes the Tegra 3 products more electricity than the SAN, I think this could be integrated all sorts of use state after the results. (click view: Tegra 3 than Tegra 2 in the strong which)

In the Tegra 3, such as dynamic lighting, physics and other related to games and processing tasks through the four core sharing. Through this load sharing, basic won't appear a core carrying case, let the processor with the additional space for handling the background task.

NVIDIA Optimus technology and the same, switching process in the background to be automatic operation, switch time is less than 2 milliseconds, Compaq CQ40 screen belong to seamless switching, and in order to avoid the core frequent switching between, NVIDIA CPU added to the algorithm in the management of the lag of the programmable control, such as the application after switching mechanism activate stable operation, thus preventing core between "bumpy".

NVIDIA graphics computation field position in no doubt, in the mobile platform, from one generation start, built-in Geforce GPU's Tegra family showed 3 D graphics operation and hd codec power, three years of development let Tegra processor become smart phones and tablet computer on high representative of the recreational, let's take a look first at Tegra 3 on the specifications of the GPU.

The SAN compared to products, Tegra 3 graphics operation performance more powerful, and has two characteristics. First, the GPU core from eight increase to 12, Lenovo T400 screen performance improvements is about three times, the maximum output 2560 x 1600 resolution hd images. Second, Tegra 3 support 3 D display (Stereo 3 D), if the tablet computer or external display device equipped with corresponding display screen, can enjoy 3 D vision of fun.

Carry out to the actual application, three times as many as in the Tegra 2 performance can bring better game screen, run the same paragraph 3 D games, Tegra 3 processor's GPU can render the more dynamic lighting, physical effects and high resolution environment, promote use flat running generation into the feeling.

The complexity of the mobile game and visual rich in increasing degree, and at the same time can download games content the file size of the corresponding increase. The game files are too large, download the game for more than 15 Dell E6400 screen minutes, the buyers lose download senior games power, therefore in the Tegra 3 manufacturers into the real-time dynamic texture generation technology, let originally 300 MB of texture set reduce to 1 MB or so.

With the CPU and GPU performance of high performance, allows developers to write game code, make the game for according to the plot and texture state real-time created, because it is instantly generation texture, through the technology, game developers can reduce the size of the game file several orders of magnitude, the actual application and improve software sales help a lot.

In addition to spare no effort to promote development performance, NVIDIA this year in Android camp set up their own online store, acer screen provide more and more high quality applications, enter the VIP halls conditions is only one that your equipment used the Tegra 2 processors.

Be worth what carry is, with NVIDIA and many game development companies close cooperation relations, Tegra Zone in the future will provide more and more popular 3 D games, hardware that is the purpose of birth for software services, through the hard and soft combination to control the future application market, Tegra use as a mobile equipment get advanced application pass, NVIDIA relative other manufacturers made this one step ahead.

Since the Tegra was born that day, NVIDIA target customers is aimed at the high end in the mobile market, the second half of this year the price of flat Android camp there was a large earthquake, so far more than the aftershock, the whole of the tablet computer prices are lower, in a line of the plate with brand after the largest single, how to capture ZhongDiDuan mobile market for NVIDIA would be a quite a challenge.

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