Tuesday, February 9, 2010

What is interesting processor A4 iPad?

Network edition AppleInsider, traces news from the company Apple, published on its pages a little analysis of the new chip A4, which provides work released last week tablet iPad.

First of all, the review authors note that the A4 - it is not just the processor, the so-called "system-on-Chip" (System-on-a-Chip, SoC), which also include graphics and memory controller.

According to recent data, in A4 integrated ARM processor Cortex-A9 MPCore, which is also used in the platforms Nvidia Tegra 2, Qualcomm Snapdragon, Texas Instruments OMAP4 and several others. A4 clocked at 1 GHz, is made of 45-nanometer process, has 4 cores and the second-level cache (L2) volume of 2 MB. The maximum power consumption does not exceed 0.3 Tues The role of the GPU executes ARM Mali 50.

For comparison - the difference in performance Cortex-A8 (which now runs iPhone 3GS) and Cortex-A9 is 10-20%, which is very significant and noticeable. In addition, A9 more economical battery costs when performing simple "routine" operations.

Another very important point is that the A4 delivers high performance at very low power consumption. For applications developers, it provides 10 hours of battery life when watching videos. This result can now boast of one (!) From the current netbooks, notebooks, tablets, phones or handheld computers (subject to the use of standard batteries). In addition, we should not forget that the battery in the iPad is not very big, and the weight of the device does not exceed 730 grams!

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