[squeak-dev] Raspberry Pi 4
K K Subbu
kksubbu.ml at gmail.com
Fri Jun 28 05:34:00 UTC 2019
On 28/06/19 6:43 AM, Chris Muller wrote:
> The foundation has strayed away from its original intent to design and
> build affordable development boards to promote hands on computing
> amongst students . Its main appeal was its openness (global access),
> low-cost (i.e. every student could have one or more) and low-power
> (battery powered) and wireless connectivity (wifi/BT). With RPi 4, the
> power hogs in GPU and Ethernet have become worse.
> According to the Bitscope rep I asked, the Pi 4 should budget about
> 8-10W per node. To me, that seems pretty amazing for a 4-core, 4GB RAM
That is a typical power draw. I was referring to the upwards creep in
the power adapter - 5V/1A to 5V/2A to 5V/3A now.
But my disappointment is not about specs. It is about the divergence
from the motivations that led to RPi - an open physical computing kit
less than the price of a CS textbook. This was also reiterated in
opening para of RPi Zero announcement  in 2015. RPi is not a
"batteries included" kit. A complete study kit would be $50+ and it
would increase now.
Cortex boards are unarguably more power efficient than x86 boards and I
do like many of the design choices in RPi. But when it comes to laptop
computing needs, Cortex is yet to seriously challenge single thread
performance of x86/x64 boards. In positioning itself towards desktop
computing space, RPi 4 is falling between two stools.
Of course, RPi is free to choose to change their direction. I just
expressed my disappointment about losing a excellent player in the
student kit space.
Regards .. Subbu
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