Feature of single board computer

For those who love a variety of new items, should look at the Odroid-C1 +. The 40-gram platform created by Hardkernel. Product price of single board computer is 37 dollars.

The dimensions is 85 to 56 mm. Given the amount and good performance – an interesting device.

Established system for 4-core chip Amlogic S805 with a maximum clock frequency of 1.5 GHz. As for memory, 1 GB of RAM types DDR3. In the role of storage, it is proposed to use a microSD card up to 64 GB.

Responsible for processing graphics accelerator ARM Mali-450 MP2. The controller is able to work with the OpenGL ES 2.0 / 1.1.

What interfaces are available on board? ADC, SPI, UART, I2C, and GPIO. All that is required inventor. In addition, there are Gigabit Ethernet, full-sized HDMI, one Micro-USB, and four ports USB 2.0.

Do we need a good sound single board computer? You can purchase an add-HiFi.

Source: cnx-software

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The staff of the company Epicenter, which is engaged in high-tech development, received an offer to implant in the hand a small RFID-chip.

Microchip the size of a grain of rice will be used for personal identification of employees at the entrance to the office, corporate dining and access to the workplace. The procedure for implanting the chip resembles a regular subcutaneous injection, and make it specially invited professional tattooists.

Implantation of chips is not compulsory for the 700 employees Epicenter office in Stockholm. Interested parties can continue to use the familiar RFID-cards. However, the company’s management hopes that such a high-tech workers imbued with the idea in the spirit of the company and opt for convenience.

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An interesting announcement pleased ARM manufacturers of smartphones and tablets. The company has introduced several revolutionary new products.

Namely – the graphics accelerator Mali-T880 chip and Cortex-A72. They are designed for use in next-generation mobile devices.

Unfortunately, this year, users will not see products based on them. The first electronic gadgets will be available only in 2016.

Than those listed ARM systems different from those used now? They are much more compact, more productive and more efficient (in terms of energy consumption).

Thanks to them, soon there will be more subtle devices with high battery life (and not at the expense of high-capacity battery).

Cortex-A72 – for example – the battery consumption by 75% slower than its predecessors. In this case, the platform is available on a 16-nm process technology and operates with a maximum clock frequency of 3 GHz.

Listed for double bypass speed Coretx-A57. And three times – Cortex-A15.

What about the Mali-T880? Fans of “heavy” games have a bright future. Platform demonstrates a 1.8-fold superiority over the Mali-T760, support video format 4K, DirectX 11, OpenCL 1.2 and OpenGL ES up to version 3.1.

Sounds pretty cool. Also, what is so exciting to wait for things you need 12 months.

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The last few years, Samsung launches its flagship phone in two versions – one with its own production Exynos processor 7 Octa, and the second on the other chip firms tend, Qualcomm. This year was no exception, so the Galaxy Note 4 can be found on sale with a quad or eight-core Snapdragon 805 vs Exynos 7 Octa. Usually the platform depends on the market – in the United States offer a model with Exynos on board, and in Europe, Asia and Latin America – Snapdragon.

On paper, the differences between the two chips are very significant. Snapdragon 805 operates on four cores, whereas, as Exynos 7 Octa  has at its disposal 8 cores (4 + 4, which can operate simultaneously, if necessary). On the other hand, in the case of Snapdragon 805 talking about work on a much higher frequencies – up to 2.7 GHz and  Exynos 7 Octa maximum “speed” below – 4 cores at 1.9 GHz and 4 core – 1.3 GHz . But we, like real geeks, understand that this is just the tip of the iceberg. For example, these two solutions include completely different graphics accelerators: Snapdragon – Adreno 420, Exynos – Mali T760. In principle, the chip and Samsung, and Qualcomm chip supports QHD-screen, OpenGL ES 3.1 and Direct3D 11.1.

Snapdragon 805 vs Exynos 7 Octa

Differences really a lot, so the experts site Phone Arena decided to dot the “i” and decided to compare the two chips in 8 tests. They set a goal to compare the processing power, graphics capabilities, data rate, work on the Internet and other moments.

Tests CPU

It’s safe to say that the chips Snapdragon 805 vs Exynos 7 Octa equipped with powerful processors. Determine which one is better – a little harder. But, judging by the tests, it is Samsung’s decision is forging ahead. Program Vellamo, Geekbench, Basemark and PC Mark gives a higher estimate is  Exynos 7 Octa. But AnTuTu more liked processor Qualcomm; Snapdragon 805 here was above estimates virtually all Microtest.

Tests graphics

But in this case, Snapdragon 805 in all tests bypassed Exynos 7 Octa. In principle, the only indicator where Samsung processor solution turned out to be on a par with Qualcomm – is a 2D graphics.

Memory Tests

RAM shows good results in all versions of Samsung Galaxy Note 4 (and Snapdragon 805 vs Exynos 7 Octa), but still own development Koreans proved to be more “brisk”. With respect to data storage, the results of its testing were approximately the same in both cases.

Tests “Web”

When it comes to web browsing, the situation becomes very confusing. Vellamo gives a higher score  Exynos 7 Octa, and the HTML5 test in AnTuTu indicating the superiority of design Samsung. But Basemark and SunSpide give preference Snapdragon 805.

In summary

What a version of Samsung Galaxy Note 4 better has a faster platform? Both solutions are certainly very good, but it turned out that the model Exynos leader in terms of performance and memory. In fact, it may mean a more rapid and stable operation of applications. Models with preinstalled Qualcomm chip can boast high levels of graphics (gaming device?). The result is that Samsung has equipped its flagship Galaxy Note 4 really cool “stuffing”. The owners of this smartphone can be sure that in any case they got a top device with high performance.

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Initially, the company Samsung has introduced two versions of its flagship Samsung Galaxy S4 – with eight cores Exynos 5 Octa (model GT-I9500) own production and quad chip Snapdragon 600 (model GT-I9505) of Qualcomm. A number of Western observers have tested both the smartphone in synthetic tests and found out what their differences.

Exynos 5 Octa was slightly faster in some synthetic benchmarks (within 10%) ahead of a smartphone with a Qualcomm Snapdragon processor 600, but the latter in this case showed the best results in longer battery life. So between the two versions, in principle, did not yield to each other.

However, resource Anandtech has performed a detailed review of both the smartphone and the variations found very interesting thing – in normal mode graphics accelerator in the Exynos chip is clocked at 480 MHz, while the popular benchmarks (Quadrant, AnTuTu, GLBenchmark) it automatically overclocked to 532 MHz, gave him immediately increase by 11-13%. After the release of these applications was the frequency in its place.

It is said that Samsung deliberately decided to put its own chip in the best light for browsers and potential buyers – they are all guided not just by words, but also on the benchmark results. And they were rigged – in reality Exynos 5 Octa was no better than the Qualcomm chip which, moreover, is more energy efficient.

In the same popular synthetic benchmarks has been elucidated yet another interesting thing. The frequency of the processor after the launch of these applications is automatically set to the maximum – and it concerned with Snapdragon smartphone versions 600 and Exynos 5 Octa.

Thus, it allows to achieve the best results in each test. Under normal circumstances, the processor before starting the test is always in quiet mode with low frequency and “accelerated” to the maximum only after clicking the start of testing.

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