...
- Specs
- 1.2 GHz ARM
- On-chip DDR2 controller - 4GB theoretical limit, no clue what SoC supports
- On-chip NAND, NOR flash controllers, 10/100 ethernet mac, PCIe bus, USB 2.0
- purportedly superscalar - dual issue, OOO
- SheevaPlug - ARM SoC in a wall wart
- http://www.globalscaletechnologies.com/p-22-sheevaplug-dev-kit.aspx
- PXA168 + gigabit phy, 512MB ram, 512MB flash
- 5W power draw
- includes AC adapter
- dev kit: $99 USD in quantity of 1 (volume pricing undoubtedly much lower)
- If a similar SoC could be had with 4GB for $150, we'd have:
- $37.50/GB
- 0.3GHz/GB of cpu (specious, I know)
- 250Mbit/GB of network
- 1.5-2W/GB guess based on 5W number above
- Compared with "Followup, 32-slot OEM" below...
- $39.73/GB
- 0.225GHz/GB of cpu (for what it's worth)
- 32Mbit/GB of network (assuming 4 gigE phys)
- 1.7W/GB (taking into account only 4 x 55W processors; significantly higher in reality)
- Summary:
- similar $/GB, potentially similar CPU capacity/GB
- better network throughput/GB with SoC
- likely better W/GB with SoC
- memory bandwidth/GB may be interesting
- are 4x4 opterons 32x better to break even? probably
- can a SoC saturate gigE?
- If a similar SoC could be had with 4GB for $150, we'd have:
...