How strong is the Tegra 4 of Xiaomi 3: 72 core graphics unit, 6 times higher than the Tegra 3 | Ainongji - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

Not long ago, it was reported that Xiaomi 3 would be equipped with the next generation of nVIDIA Tegra 4 processor. Recently, a more detailed architecture diagram of Tegra 4 was exposed. As can be seen from the architecture diagram, Tegra 4 has further enhanced the optimization of graphics performance, increasing the number of graphics cores to 72, 20 times that of Tegra 2 and 6 times that of Tegra 3. At present, the official has not officially confirmed this news, but according to the official release time is not far away. The following summarizes the parameter messages of Tegra 4 in all aspects.

Tegra 4 is code named "Wayne", and its manufacturing process has been officially upgraded from the previous generation's 40nm to 28nm. In terms of CPU, Tegra 4 uses the core of ARM Cortex-A15 architecture, with a frequency range of 1.5GHz to 2.0GHz. According to the current news, it will still use the four core design, and use the eight core Big Little technology is unlikely. It is expected that nViDIA will continue to use the vSMP/4+1 technology used on Tegra 3 and make improvements to achieve better power management performance.

Tegra 4 architecture diagram

Huang Renxun, CEO of nVIDIA, mentioned in an email to all employees after Kepler released that the new Kepler architecture will enter the mobile terminal field, so Tegra 4 is likely to adopt the graphics core of Kepler architecture. In terms of the number of cores, according to the latest news, the 72 core design will also be adopted, which is 20 times that of Tegra 2 and 6 times that of Tegra 3. The performance will also be higher. In the theoretical shader performance test carried out inside nViDIA, Tegra 4 has achieved the performance advantage of sweeping all competitors' next-generation products: Tegra 4's shader performance is about 6 times that of Qualcomm APQ8064 (Adreno 320); 4 times more than TI OMAP 5 (SGX544 MP2, frequency about 300MHz); Even with the new Apple iPad or Sony PlayStation Vita, the 250MHz SGX544MP4 has about 2-3 times the performance. However, this is only theoretical data. Whether the specific performance can be played out depends on the final software optimization.

Tegra 4 graphic performance of code "Wayne"

Thanks to its powerful graphics performance, Tegra 4 can support 4K X 2K resolution display. At present, no screen has reached this level, and the maximum mobile phone is only 1080p. In terms of decoding, nVIDIA has added a new NEON module to deal with high-definition video without pressure.

In terms of memory, Tegra 4 will upgrade the NVIDIA controller to 64 bits if it supports USB 3.0 and DDR3L for the first time, which is conducive to improving the overall performance.

In terms of architecture, as mentioned earlier, Tegra 4 still maintains 4+1 processing cores instead of the legendary eight core design. However, the quad core A15 is also excellent. At present, Samsung has just launched the dual core A15 architecture. Whether Tegra 4 will be the first quad core A15 processor to be officially launched, we can look forward to the release in the first quarter of next year.