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Turbocharged Raspberry Pi 2 unleashed

theregister.co.uk

11–20 of 213 posts

Re: Turbocharged Raspberry Pi 2 unleashed

#11

ARMv6 still? I don't see how that's necessary to save on the BOM. I hope legacy code was not the deciding factor here.

I haven't been able to find what CPU core is used in the new chip. 3x sunspider performance is over the BCM2835 is claimed, which is not with the higher clocked ARM11 cores. They also reference limitations of the ARM11 core being gone. However, elsewhere in the article they still say it is an ARM11 core.

Re: Turbocharged Raspberry Pi 2 unleashed

#14
post #5

I wish they would release one with DMA based gigabit Ethernet. That always seems to be the bottleneck for me.

It would have been much sense with the newer CPU. My old Pi hiccups at very high IO over ethernet, specially when I am processing the incoming streams.

Re: Turbocharged Raspberry Pi 2 unleashed

#16
post #4

What's the same: - Same form factor as the model B+ (your enclosures and daughter boards should still fit). - Same full size HDMI port - Same 10/100 Ethernet port - Same CSI camera port and DSI display ports - Same micro USB power supply connection What has changed: - A new turbocharged Broadcom BCM2836 900MHz quad-core system-on-chip with performance at least 6x that of the B+. - 1GB of RAM Source: http://raspberry.…

Under the "Same" column, it looks like you need to add "Same price - $35".

I stocked up on B+s over Christmas - oh well...

The "at least 6x" performance claim should be "at least 3x" by the way, and even that is an estimate, not a guarantee. The 3x is on a single thread comparison, the 6x is on a somewhat synthetic multicore benchmark test.

Re: Turbocharged Raspberry Pi 2 unleashed

#18
post #16
post #4

What's the same: - Same form factor as the model B+ (your enclosures and daughter boards should still fit). - Same full size HDMI port - Same 10/100 Ethernet port - Same CSI camera port and DSI display ports - Same micro USB power supply connection What has changed: - A new turbocharged Broadcom BCM2836 900MHz quad-core system-on-chip with performance at least 6x that of the B+. - 1GB of RAM Source: http://raspberry.…

Under the "Same" column, it looks like you need to add "Same price - $35". I stocked up on B+s over Christmas - oh well... The "at least 6x" performance claim should be "at least 3x" by the way, and even that is an estimate, not a guarantee. The 3x is on a single thread comparison, the 6x is on a somewhat synthetic multicore benchmark test.

Can you return them? If its less than 30 day...?

Re: Turbocharged Raspberry Pi 2 unleashed

#19

Awesome!! I just wish they would release one with onboard Wifi instead of ethernet. I have no statistics to back this up, but I'm pretty sure that USB Wifi adapters would be the most common accessory.

It'd be great to have wifi on board, but ethernet is still important.

Re: Turbocharged Raspberry Pi 2 unleashed

#20
post #8

The most important info is missing: does it still require a non-free blob to even just boot Linux?

Broadcom is still Broadcom.

It doesn't look like BCM is intending to release any more datasheets/programming information either, which is not surprising. There will probably never be any detailed information released, officially or otherwise, on any BCM SoCs, even after they're long EOL'd.

As far as openness is concerned the RPi is basically a smartphone/tablet SoC devboard, with most of the hardware proprietary - while its Chinese competitors (Allwinner, Mediatek, Rockchip, etc.) are officially quite closed too, the docs for many of their SoCs are available (admittedly leaked; but they seem to be turning a blind eye to it.) They're also at least a Cortex-A7.

I wonder how the RPi2 compares to this:

https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-...

Dual 1GHz A7s, 512MB, SATA, HDMI, USB, Ethernet (integrated on SoC, not through USB), fully open-source, in the same price range.

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