CES2013 All Schools Contending for the Four Core War Becomes More and More Hot | Love Computer - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

On January 7, at CES 2013, NVIDIA officially released Tegra4 chip, officially stepping into the ranks of Cortex-A15. At Qualcomm's press conference on January 8, Qualcomm also introduced a new generation of Snapdragon 800 series processors to replace the high-end Qualcomm Snapdragon S4 series. The new generation of four core war is between Tegra4, Snapdragon 800 and Exynos 5. Of course, we cannot ignore the power of X86 - Intel's dual core Medfield.

NVIDIA Tegra4

This time, NVIDIA's Tegra4 is full of sincerity. In addition to the new quad core chip Tegra4 with Cortex-A15 core, it also brings the handheld entertainment terminal Project SHIELD. In addition to introducing Android games, Project SHIELD can even play PC games through cloud services. The idea is very innovative. Of course, its core is also the new Tegra4 chip.

The core part of Tegra4 chip is that it has four Cortex-A15 cores and uses 28nm high-k process. In addition, the frequency of Tegra4 is much higher than that of the previous Tegra3, and the maximum frequency can reach 1.9GHz. About the performance of Cortex-A15, we have Exynos 5250 of Nexus 10 We have already learned that although Exynos 5250 uses "only" dual core A15, its powerful performance can already be used in many applications Overwhelming the current high-end quad core A9 quad core 。 So it is conceivable that Tegra4's quad core A15 performance will be unprecedented (and its frequency will be even higher).

In the past, for Tegra2 and Tegra3, the processing performance of the CPU side was fairly good. The problem was more about the GPU performance, which was inferior to other chipsets in the same period. This time, Tegra4 also has a great improvement in GPU performance, with 72 Shader alus, six times as many as Tegra3. Although this is different from today's top SGX554MP4 There is still a gap between the 128 alus of the SGX554MP4, but the frequency of Geforce ULP is always high, so the theoretical performance will be close to that of the SGX554MP4, which is very expected.

The most important problem of Tegra4 is power consumption. We know that the power consumption of the A15 core is extremely amazing, which also directly hinders the application of the A15 core processor to mobile phones. The dual core A15 chip on the Exynos 5250 has a very high power consumption, and the high-frequency quad core A15 of Tegra4 can be imagined that the power consumption is even more a problem. On the Project SHIELD handheld computer using Tegra4, we even rarely saw aluminum heat sink

Qualcomm Snapdragon 800

The Qualcomm Snapdragon 800 is used to replace the Qualcomm S4 commonly used in high-end mobile phones (I really don't understand why Qualcomm needs to change its name again, is it not good to use Qualcomm S5?). Although the specific performance and parameters of the Snapdragon 800 have not been announced, its characteristics are very similar to the Qualcomm MSM8974 chip previously exposed, The new Krait core with high frequency is used, and the frequency reaches 2.3GHz (NVIDIA: Is it easy for me? It's just 1.9G, you can take 2.3G!) The GPU is equipped with Adreno 330, and its performance is more than twice that of Adreno 320 in the previous generation APQ8064 This level of graphics processing capacity can already be described as excessive performance. It supports a maximum resolution of 2560 * 2048. Snapdragon 800 series will be launched after the middle of the year.

The main problem with the Snapdragon series is that the CPU performance on the same frequency is relatively low, but it seems that this is not a problem on the Snapdragon 800, because its frequency is too high, which reduces the poor performance a lot. What's more, the enhanced Krait core is on the Snapdragon 800, and I believe that the single core performance will be better than before. Another problem comes from Adreno's GPU. On Adreno 320, there is a problem that the theoretical performance is strong, but the performance in actual games is not so good, which is reflected in the poor special effects of some games and the lack of fluency. Of course, this involves the optimization of game manufacturers. It is hoped that in the Adreno 330 era, the super GPU computing performance can be truly reflected in actual games.

Samsung Exynos 5450/5440

With regard to the Exynos 5450, there is very little information, and Samsung has not taken much action in CES2013, so we can only learn about the Exynos 5450 from hearsay information. Compared with the Exynos 5250, the Exynos 5450 uses an updated 28nm process, and the frequency also reaches 2GHz (the Exynos 5250 on the Nexus 10 is 1.7GHz). In addition, the GPU used by Exynos 5450 is also the new Mali-T658. The performance of this GPU is also unprecedented. It is four times stronger than the Mali-T604, which is the strongest in Android today. This GPU's processing power is the best partner of Nexus 10's 2560 * 1600 level screen.

In addition, Samsung also has an Exynos 5440 chip using the "big. LITTLE" technology. Specifically, the Exynos 5440 is composed of two Cortex-A15 architecture cores and two Cortex-A7 cores. When some low load applications are used, that is, two A7 architecture cores are used. When the load is high, the core of A15 architecture is switched. This is also an alternative way to avoid the high power consumption of the A15 architecture core. It is rumored that the Galaxy S IV will use this chip.

Intel Z2580

Intel also had a press conference at this CES 2013 conference, but the Intel press conference did not mention the legendary dual core X86 mobile phone chip Medfield. This dual core Medfield uses a 22nm process, with the main frequency ranging from 1.6GHz to 2Ghz. The GPU is also very powerful. It uses a multi-core PowerVR SGX544MP chip (it can be inferred from the score that there are more than one core).

At present, we know little information about the dual core Medfield, only some information about leaking the score. Of course, we can also see some problems from the running score. From the perspective of score scoring, Intel's new Atom Z2580 with dual core and four threads is really very powerful. It is just a dual core score scoring, which has greatly exceeded the APQ8064 of the four core Krait core in terms of CPU integer performance and RAM performance. The GPU even surpasses the Adreno 320, the strongest mobile phone in Android today, and reaches a very high level in 3D drawing performance. The mobile phone equipped with this chip is reportedly Lenovo's latest K900, which will be released on January 9.

In general, NVIDIA, Qualcomm, Intel and Samsung all showed aggressive momentum in the "nuclear war" in 2013. What about the actual performance? We still look forward to the actual comparison after the real machines using these high-end chips appear in the second half of the year.

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