In the Tegra 3 NIDIA after its release, tablet computer's CPU has emerged the regret scene, the first generation of CPU still in use, and the second generation dual-core CPU is now a mainstream, but many product manufacturer, qualcomm, Texas, samsung, etc. Relative to the PC Intel and AMD two ii, flat the superiority of the CPU is difficult to distinguish the show. Below I will take you in beitou.
The first of a series of is some domestic in the fortress in single-core CPU, this in a line manufacturers are becoming scarce, the common characteristic of the processor is high performance/price ratio, low price. Such as red micro RK2918, AMLOGIC core 8276, Telechips Tcc8803, all the volunteers S5V210 A10, samsung, etc. They are basically is ARM Cortex-the A8 design scheme, all above 1.0 GHz in frequency, to the nanometer level too large. The advantages and core competitiveness in hd video decoding major, can play 1080 P low compression formats, such as the A10 volunteers can support 2160 P video so want to find it hard to high resolution.
By Rachel core micro RK29 solutions a the most commonly, red micro RK2918 is the core of the commonly used one of domestic flat scheme based on 55 nano craft manufacture, have as high as 1.2 GHz the main frequency, as many as 512 KB of level 2 cache, with Neon coprocessor, performance than nearly four times as ARM11 ascension. RK2918 built-in independent Vivante GC800 high-performance 3 D graphics processing, perfect support OpenGL2.0, with 600 M/s and 60 M/s pixel filling rate and the triangle productivity, can not only running Android system 3 D game, also support 1080 P hd video decoding the, 2 D / 3 D performance are very strong.
Say to the faults, the CPU tablet computer in one thousand yuan of right-and-left prices, usually Android X system, except in processing speed and dual-core and can't compete four processors outside, no obvious shortcomings. Because Android X compatibility of the poor, make in the stronghold flat can play of the game in the Android X on appear all sorts of problems, then comparing not only in the CPU range. This can only be a penny also editor a points goods.
The second series is now a mainstream dual-core processor line, each big manufacturers the darling of the Tegra 2 processor NV, because a gun of fame and millet MSM8260 qualcomm, in addition to the above and Texas instruments of the CPU, but the Texas on mobile phones than the use of flat plate of the use of more widely, such as the OMAP4460 blade. Their advantage lies in the power management, multitasking distribution of resources for high resolution, large, 3 D game support, etc. Dual-core processor is the main melody in 2011, samsung, SONY, lenovo first choice dual-core processor used in manufacturer own flat plate, and a important reason, is that the tablet launch Android to performance and the apple iPad 2 against.
Here is the most widely used Tegra 2 (figure farce 2). It is the second generation of the Tegra chip, the first section product Tegra 250, using TSMC 40 nm manufacturing process, integrated eight different function processor. Two of them are ARM Cortex A9 core, operation is 1 GHz frequency. In addition a ARM7 processor, a audio processor, an image processor, a hd movie decoding processor, a hd movies encoded processing, a graphics processors. Because in 2007 the acquisition of the NVIDIA PortalPlayer company, thus make audio processor technology.
Tegra 2 chips for video decoding, high can play smooth 1080 p movie, and less than 400 mW power consumption. Image processor, chip support 2 million pixel camera. And the image processor support OpenGL ES 2.0, and the generation of the same. But the frequency and bandwidth of ascension that can make the performance have two to three times the growth. Due to the Tegra 2 chip does not support the Neon instruction set, so that the multimedia performance has some problems, such as not fluent play High Profile of 1080 P H264 video.
This kind of CPU relative to a new generation of four nuclear of course, there are many disadvantages: life ability, image processing capability, the resources allotment ability, support the maximum resolution, but in the world of dual-core, Tegra 2, and qualcomm is like two optimus prime, status reigns. With the four nuclear launch, yes dual-core with more cost-effective. In the four nuclear renewal of dual-core, don't pursue the configuration of the hardware fancier, of the tablet or a dual-core a good choice.
Some say 2012 is a four nuclear era, and now the only four nuclear CPU is NVIDIA Tegra 3. The CPU appear like flat savior, from greatly improve the performance of the tablet computer, making the tablet computer, relative to other intelligent end products more competitive. This is also a highly CPU only mentioned industry. Believe in 2012 with his performance as the CPU appear, such as samsung exposure of 2 GHz dual-core CPU, and the contents of apple A6 processor.
No comments:
Post a Comment