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 Posted: Mon, 2nd Feb 2015 17:00 Post subject: Turbocharged Raspberry Pi 2 unleashed: Global geekgasm |
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El Reg lays claws on surprise new quad-core chipped fruity titchy-computer
The Raspberry Pi Foundation is likely to provoke a global geekgasm today with the surprise release of the Raspberry Pi 2 Model B: a turbocharged version of the B+ boasting a new Broadcom BCM2836 900MHz quad-core system-on-chip with 1GB of RAM – all of which will drive performance "at least 6x" that of the B+.
Speaking to The Register last week, foundation head honcho Eben Upton said: "I think it's a usable PC now. It was always the case that you could use a Raspberry Pi 1 as a PC but you had to say 'this is a great PC in so far as it cost me 35 bucks'. We've removed the caveat that you had to be a bit forgiving with it. Now it's just good."
Outwardly, there's little to distinguish the Pi 2 from the Pi 1 Model B+, as it's now designated.
At its heart, though, is the BCM2836 SoC, which according to Upton has been in development for a couple of years. It's "very, very similar" to its predecessor – the BCM2835 – but with four cores and "a little tweak to allow us to address the gig of RAM," he explained.
The BCM2835, as used in previous Pis, is a Broadcom GPU – the VideoCore IV – with a single 700MHz 32-bit ARM1176JZF-S application core glued in to run software. The system-on-chip is shipped with 256MB or 512MB of RAM stacked on top.
The new BCM2836, on the other hand, contains four 32-bit ARMv7 Cortex-A7 cores with 1GB of RAM (and the same VideoCore IV GPU).
We've given the new BCM2836 Pi 2 a quick blast, with SPB apprentice boffin Katarina having the honour of being one of the first to lay hands on the board. It seems nippy enough but just how it measures up remains to be seen.
Regarding the claimed 6x performance increase over the B+, Upton said: "That's one of those things where you ask 'how do you put a number on it?'"
"If you run a multi-threaded synthetic CPU benchmark on it, they all spit out a number that's about six. That's both optimistic and pessimistic. It's optimistic because, of course, those are multi-threaded benchmarks. It's pessimistic because I don't think those synthetic benchmarks punish the [ARM processor] hard enough."
The Broadcom BCM2836 chip in the new Pi 2.
Upton, a chip architect at Broadcom, continued: "Where the ARM11 starts to fall down really, particularly with the kind of small caches we have on the BCM2835, is when it starts to run actual applications. I think we ran SunSpider [on the BCM2836] and even though that's going to be a single threaded benchmark, that was something like 3x performance just on a single core.
"So we figured, what's a defensible number, and [six] is the number that comes out of SysBench. We just wanted to have an answer when someone asked 'Where did you come up with that?'"
Fair enough. So, what might people do with this extra speed? Upton reckons it'll be handy "probably in the embedded makery world, for some image processing stuff."
He elaborated: "There are a lot of people who want to do computer vision things like OpenCV. You can optimise OpenCV pretty well to run on the DSPs that are in Pi 1, but in the end there's just no substitute for just lots more CPU performance."
Quite so. Agreeably, the Pi 2 will sell at the same price as the B+ – $35 – but the latter will live on.
Upton told us: "We've sold something like 60 or 70,000 freshly manufactured Bs since we launched the B+, because, for example, industrial customers don't want to move on. I think that although the Pi 2 and the B+ are going to be the same price, there will be a bunch of industrial customers who, for a variety of reasons, will just stick with the B+ because they're comfortable with it."
Accordingly, the predicted manufacturing mix for this year will be 80 per cent Pi 2, and 20 per cent Pi B+, as customers gradually migrate to the faster model.
The Pi 2 goes on sale today from the usual outlets. Upton promised 100,000 units available straight away, with Sony's plant in Pencoed, South Wales, churning out more at the rate of "thousands a day".
He said: "If it's as popular as I think it will be, I'm sure there be a little queue, but it won't be the 2012 experience where the queue was six months long."
For geeks on a really tight budget, the $20 Pi A+ will still be available, and Upton provocatively noted "there is a slot in the name space for a Raspberry Pi 2 Model A." Such a stripped-down version boasting the BCM2836 would doubtless be a winner, although the Raspberry Pi Foundation has no immediate plans to release it.
Our own Pi 2 is winging its way to Low Orbit Helium Assisted Navigator (LOHAN) autopilot wrangler Linus Penzlien, to assist in programming our Vulture 2 spaceplane's autopilot, and when we suggested to Upton it'd be a nice present for the German brain surgeon, he said: "I'm hoping this is a nice present for Linux gods everywhere." ®
This article was clarified shortly after publication to make clear the new BCM2836 includes four ARM Cortex-A7 cores. RS Components, for one, has the new model in stock.
sause: http://www.theregister.co.uk/2015/02/02/raspberry_pi_model_2/
| Lutzifer wrote: | | and yes, mine is only average |
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Mon, 2nd Feb 2015 17:08 Post subject: |
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| Posted: Mon, 2nd Feb 2015 17:30 Post subject: |
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| Werelds wrote: | | http://dev.windows.com/en-us/featured/raspberrypi2support |
Noice !!!
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| Posted: Mon, 2nd Feb 2015 18:07 Post subject: |
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Last edited by paxsali on Thu, 4th Jul 2024 21:52; edited 1 time in total
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| Posted: Mon, 2nd Feb 2015 21:04 Post subject: |
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Last edited by paxsali on Thu, 4th Jul 2024 21:52; edited 1 time in total
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| Posted: Mon, 2nd Feb 2015 23:53 Post subject: |
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Moved to correct section.
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| Posted: Tue, 3rd Feb 2015 11:26 Post subject: |
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yep. silverlight support would be nice.
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mtj
Posts: 2315
Location: Austria / Finland
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| Posted: Tue, 3rd Feb 2015 15:28 Post subject: |
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well it is on the same price as the old one..
| Lutzifer wrote: | | and yes, mine is only average |
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| Posted: Tue, 3rd Feb 2015 16:03 Post subject: |
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sure. but you would need a new case, a new psu (they recommend a 2a one), a new case and a new microsd card. if you want to run win10 besides other os you need minimum a 32gb one. so you. so its about 80-100 usd again.
i may be willing to get the one IF win10fordevices supports silverlight and if it can run sky go properly in hd
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| Posted: Tue, 3rd Feb 2015 17:12 Post subject: |
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why do you care about silverlight ? it is pretty much dead beside in windows phone. and hell, even on win phone webpages which require silverlight don't work.
all focus is now to html5.
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| Posted: Tue, 3rd Feb 2015 17:33 Post subject: |
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as i said,cause of sky go. would be the only extra usage for me when i buy a new pi2
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LeoNatan
☢ NFOHump Despot ☢
Posts: 73213
Location: Ramat Gan, Israel 🇮🇱
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| Posted: Tue, 3rd Feb 2015 19:42 Post subject: |
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Windows on ARMv7  Get Intel Atom (Galileo), a real architecture with a real OS.
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| Posted: Tue, 3rd Feb 2015 20:57 Post subject: |
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think you cant compare a gen 2 galileo to a pi(2). the pi has enough power for media center stuff. the galileo too, but its not strong enough for anything else (cloud,nas,etc) so its wasted money compared to the pi. and for the pi are many modded distributions available. and even the galileo cpu is most likely not strong enough for the demanding silverlight
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Morphineus
VIP Member
Posts: 24883
Location: Sweden
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| Posted: Wed, 4th Feb 2015 02:04 Post subject: |
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| Posted: Wed, 4th Feb 2015 02:22 Post subject: |
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meh, just overlooked it. came to "Power it off a USB port on your TV
As this computer does not have a separate power button, a good trick is to connect it to your TV’s USB port, so that when you turn on your TV it will also boot up the computer. This way you will also need one less power plug." this and ended reading
bullshit, normal usb port (2.0) will give you 0,1a at the first handshake and a maximum of 0,5a. that may cause problems even when running the pi on standard core clock which isnt recommended for openelec or rasbmc and will cause problems when overclocking
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garus
VIP Member
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| Posted: Wed, 4th Feb 2015 12:58 Post subject: |
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snip
Last edited by garus on Tue, 27th Aug 2024 21:43; edited 1 time in total
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garus
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| Posted: Wed, 4th Feb 2015 13:44 Post subject: |
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snip
Last edited by garus on Tue, 27th Aug 2024 21:43; edited 1 time in total
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| Posted: Wed, 4th Feb 2015 13:53 Post subject: |
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my rpi (b+ i think) is powered 100% from my computer usb port (even if computer is turn off, usb are still powered).
running raspbian/xbmc/occidentalis on it, never had issues.
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| Posted: Wed, 4th Feb 2015 14:17 Post subject: |
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oc? my pi (openelec as well as raspbmc) corrupts data on the sd card if powered by normal usb port when overclocked or just restarts randomly sometimes, does not happen with my nokia charger (1A output)
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| Posted: Wed, 4th Feb 2015 15:21 Post subject: |
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yeah, but is not running in oc mode usually. maybe i oc for few hours / week, usually when i run xbmc. like i said i never had any issues. maybe because i'm using asus ai charge ?
http://event.asus.com/mb/2010/ai_charger/
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| Posted: Wed, 4th Feb 2015 15:51 Post subject: |
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What the fuck does that AI charger do? My android phone connected to a powered usb hub still complains about slow charging and low current. Nothing changed. The stupid icon is there showing no connection.
I then tried it on my PC's port directly, still no change. Fucking icon there, left click, right click don't work, wtf.
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| Posted: Wed, 11th Feb 2015 22:41 Post subject: |
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Do I want raspberry pi 2?
How hard would it be to turn it into htcp movie/music station and emulator thingy ?
is there a battery pack for it or something? Or can it be ran strictly from outlet ?
3080 | ps5 pro
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that would have been the only two points which would make me buy the new one. but my old pi still works flawless with openelec as media player, even hd mkv streaming via wlan works fine (cpu is overclocked to 900mhz)
)). maybe is placebo ? suposly it works only with apple crap.
