Just in the last few days was released the Raspberry PI 2, six times more powerful than its predecessor; at the moment only made a few hundred of thousands of units that have already been sold around the world.
Thanks to Jesus of RaspberryShop I've done a first consignment, so that you can see as yield in comparison with its predecessors, B and B +; as well as their main differences.
In this model of Raspberry PI It has replaced the BCM chip 2835 ARMv6 by a BCM 2836 ARMv7 Cortex with four cores at 900 MHz and her memory has been increased up to 1 GB of RAM LPDDR2, the improvement in hardware that the community asked to cries from some time ago; and the most significant of which this new model offers.
This device brings the same energy to the Raspberry PI B + at rest to get to touching peaks in consumption of the old model B, When the four cores working simultaneously and all machine.
You can see it a little more clear thanks to the previous chart and the following comparative, You can also generate you using this software from raspi.tv If you want it.
If you are going to photograph your new girl friend must do so carefully, Since it has been proved that the chip U16 SMPS that includes this model It is so light-sensitive that when taking pictures with certain models of camera with xenon flash could cause momentary blocks of our Raspberry PI 2, becoming even in some cases required a restart of the same; the following photo was taken while this stayed off.
In the following video you can see the effects of light on this small chip, that it is due to a bad insulation of this component at the time of manufacture it; I must emphasise that This only happens in the new model, Raspberry PI 2.
Thanks to the backward compatibility with its predecessors, We simply must Update Raspbian and remove the card microSD of our Raspberry PI B + and put it in our new PI 2; to start enjoying the performance enhancements provided by us.
These improvements come from the hand of a still more wide range of operating systems from which to choose, as Snappy Ubuntu Core, a version for the distribution developers; This being the first appearance of Ubuntu as an operating system compatible with Raspberry PI.
To the surprise of many, It is also compatible with the version of Windows embedded 10, so the accustomed to developing plates for this operating system as Intel Galileo You can also enjoy all its possibilities in an easy manner in their projects; at the moment it is not known if there will be a version for this small computer.
Let us hope that this total compatibility which apparently lies ahead does not end with the spirit of the free software community of users of Raspberry PI that has both made it grow; becoming what it is today.
Now already we have updated on new IP, the best way to truly appreciate its improvements of power is to do a full benchmark both this model, as their predecessors to compare in detail all the same parameters; I have chosen to do this the Roy Longbottom benchmarks.
In the previous link you have a complete manual of procedure to run these checks; If you want to you write a tutorial detailed on How to perform different benchmark to our Raspberry PI you only have to ask through the reviews and I will seek to do this time; below you can see a table with the values more significant obtained in testing.
|Raspberry PI B||Raspberry PI B +||Raspberry PI 2|
||ARMv6 700 Mhz||ARMv6 700 Mhz||ARMv7 cortex QuadCore 900 MHz|
||VideoCore IV Dual Core 250MHz||VideoCore IV Dual Core 250MHz||VideoCore IV Dual Core 250MHz|
|Ethernet||Ethernet 10/100||Ethernet 10/100||Ethernet 10/100|
|Power||5In 1A||5In 1A||5In (2A)|
| Minimum temperature
||31.5° C||34.2° C|
| Maximum temperature
||50.8° C||50.8° C||50.8° C|
| Read rate
||10.46 MB/s||10.03 MB/s||10.46 MB/s|
| Rate of writing
||3.34 MB/s||3.34 MB/s||3.34 MB/s|
| Upload speed
||2.21 MB/s||2.21 MB/s||2.21 MB/s|
|Down speed||2.84 MB/s||2.84 MB/s||2.84 MB/s|
| VAX Mips
| Test of glazesality
The logs the results of the test are as extensive this time won't embed them as code in the blog, but that I am going to share with you three compressed files; one for each model of Raspberry PI with the results that have given me all benchmarks designed by Roy Longbottom.
You can then download the text files obtained from the different benchmarks executed in the three different models; I have carried out the tests several times to confirm the results, so It is possible that in some cases the value of the tables does not correspond to the files.
|Raspberry PI B||Raspberry PI B +||Raspberry PI 2|
All these benchmarks they have been executed from the latest version of Raspbian available newly burned on the card, and with the same microSD HC in all cases, as I've said before, have been repeated all several times and always using WRTNode as a router.
This new model was really what we were waiting for a long time to implement more robust projects It may require more processing capacity, but I personally I do not think it will still replace Raspberry PI B + for the moment offers more stability.
I believe that the two will coexist and each one will be destined to one or other projects of different kinds, at least until the small failures of this first tranche are resolved from Raspberry PI 2.
What if it is clear, It is that the Foundation can no scare, because when the competition began to see the light at the end of the tunnel they have countered with what had to be satisfied and thus retain their great community, with really satisfactory results which has given much to talk about these last days.
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