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Compared to the model B: 70% of the price, 0 ethernet, 1 usb†, 256M RAM, same CPU, 1/3 of the power draw, a little thinner. ␄ † Not as much of a cut as it sou
by jws 14y ago
Compared to the model B: 70% of the price, 0 ethernet, 1 usb†, 256M RAM, same CPU, 1/3 of the power draw, a little thinner.
␄
† Not as much of a cut as it sounds. The 2 on the model B can't supply more than 100ma, so unless you needed exactly two ports with low power on each, you needed a powered hub anyway.
- koralatov 14y ago> Compared to the model B: 70% of the price, 0 ethernet, 1 usb†, > 256M RAM, same CPU, 1/3 of the power draw, a little thinner. I didn't realise that the Model A's power-use was a third of the Model B. While that might not make a huge difference for most people, it'll be a definite benefit to those using them in `always on' situations where connectivity isn't so important. I'm a little surprised that an addition 256MB of RAM, another USB port, and an ethernet port can triple the power use though...
- beagle3 14y ago> I'm a little surprised that an addition 256MB of RAM, another USB port, and an ethernet port can triple the power use though... That's because you're used to desktops, where Intel/AMD CPUs and screens take the vast majority of power. But the RasPi has no screen, and the CPU is a small, slow ARM. It's not surprising that it takes so little power compared to peripherals. Of note, there are low frequency (kilohz to low mhz range) 32-bit arms that can runs for months to years on an AA battery; They're starting to become the microcontroller of choice.
- regularfry 14y agoEven less of a cut when you consider that, unlike the B, the A's USB port can apparently go into slave mode: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=15696 http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=1... (from last year, things may have changed since then)