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I have one. They shipped back in the beginning of June. They're in stock at both Mouser and Crowd Supply. https://mouser.com/ProductDetail/SiFive/HF105-000?qs=

by drmpeg 5y ago

I have one. They shipped back in the beginning of June. They're in stock at both Mouser and Crowd Supply. https://mouser.com/ProductDetail/SiFive/HF105-000?qs=zW32dvEIR3vHEV%2FPYYkdMA%3D%3D https://mouser.com/ProductDetail/SiFive/HF105-000?qs=zW32dvE... https://www.crowdsupply.com/sifive/hifive-unmatched https://www.crowdsupply.com/sifive/hifive-unmatched

hestefisk 5y ago
Thanks. Quite costly but might be worth it. What OS do you run on it?
- drmpeg 5y ago
  I'm running Ubuntu 21.04. As for using it as a daily driver, you might be disappointed with the performance. It's slower than a Raspberry Pi 4. Also, no Firefox or Chrome browsers (yet). You have to use Epiphany. It's really targeted as a development platform and that's how I'm using it. I just SSH to it from my x86 box.
  - brucehoult 5y ago
    Yup, the CPUs are around half the speed of those in a Pi4, and around the same or a bit better than a Pi3. The RAM is much bigger and better than a Pi3 (16 GB of DDR4), and also bigger than the biggest Pi4. You can run a real GPU in the PCIe slot and a fast SSD in the M.2, so things that use a lot of I/O rather than CPU tend to be pretty snappy. The gig Ethernet also works well. So does ethernet on the Pi4, but Pi3 is a bit lacking. RISC-V CPU cores equivalent to the Pi4 were announced around 1.75 years ago and the way these things go are probably getting to the stage of working test chips right about now, and boards in the first half of next year. Obviously the price is much higher than a Pi, bit it's not out of line with x86 PCs (just a low slower). If you're actually working professionally on RISC-V software then the HiFive Unmatched is affordable, and enough more productive than the current alternatives to be worth it. Later in the year, the BeagleBoard BeagleV "StarLight" will have the same CPU specs as the HiFive Unmatched for $120 (4 GB RAM) to $150 (8 Gb RAM). That's still above Pi prices, but much closer. It will have I/O closer to Pi specs than PC specs. RISC-V is still in its infancy, but progress is rapid.

by drmpeg 5y ago

hestefisk 5y ago

Thanks. Quite costly but might be worth it. What OS do you run on it?

drmpeg 5y ago
I'm running Ubuntu 21.04. As for using it as a daily driver, you might be disappointed with the performance. It's slower than a Raspberry Pi 4. Also, no Firefox or Chrome browsers (yet). You have to use Epiphany. It's really targeted as a development platform and that's how I'm using it. I just SSH to it from my x86 box.
- brucehoult 5y ago
  Yup, the CPUs are around half the speed of those in a Pi4, and around the same or a bit better than a Pi3. The RAM is much bigger and better than a Pi3 (16 GB of DDR4), and also bigger than the biggest Pi4. You can run a real GPU in the PCIe slot and a fast SSD in the M.2, so things that use a lot of I/O rather than CPU tend to be pretty snappy. The gig Ethernet also works well. So does ethernet on the Pi4, but Pi3 is a bit lacking. RISC-V CPU cores equivalent to the Pi4 were announced around 1.75 years ago and the way these things go are probably getting to the stage of working test chips right about now, and boards in the first half of next year. Obviously the price is much higher than a Pi, bit it's not out of line with x86 PCs (just a low slower). If you're actually working professionally on RISC-V software then the HiFive Unmatched is affordable, and enough more productive than the current alternatives to be worth it. Later in the year, the BeagleBoard BeagleV "StarLight" will have the same CPU specs as the HiFive Unmatched for $120 (4 GB RAM) to $150 (8 Gb RAM). That's still above Pi prices, but much closer. It will have I/O closer to Pi specs than PC specs. RISC-V is still in its infancy, but progress is rapid.