Practical System for FPGA Litecoin Mining?

[crazy_rabbit]

Take a look:

http://www.bunniestudios.com/blog/?p=2686

It's a 'open hardware' laptop project with a Spartan 6 built in. But it also has an ARM processor and can have plenty of ram. The ARM is also directly connected to the FPGA- the builder even mentions mining Bitcoin. Perhaps this would be perfect for Litecoin?

[Photon939]

I saw this yesterday, it's a neat project but I see two major problems for litecoin:

There's no memory directly accessible to the FPGA and the price for this board will be "not cheap"

[Nicksasa]

Spartan-6 CSG324-packaged FPGA — has several interfaces to the CPU, including a 2Gbit/s (peak) RAM-like bus

Even if it can access it, I'm pretty sure the speed will be too low.

[tacotime]

including a 2Gbit/s (peak) RAM-like bus

Compare to 250 Gbit/s bus from a video and you have a recipe for some slow litecoin mining

[Simran]

including a 2Gbit/s (peak) RAM-like bus

Compare to 250 Gbit/s bus from a video and you have a recipe for some slow litecoin mining

But it's a start. Besides, if it's NEON optimized, I don't see what's stopping it to being as fast as a good processor, and if the price is cheap then you could stock up on some and mine LTC decently.

[tacotime]

But it's a start. Besides, if it's NEON optimized, I don't see what's stopping it to being as fast as a good processor, and if the price is cheap then you could stock up on some and mine LTC decently.

The quadcore A9s only gets between 2-4kh/s if I remember right, the NEON miner is energy efficient (~2x more than video cards) because it uses the on-die L2 cache but the chips are so expensive that it's pointless.

Also you might hit that efficiency if you way undervolt GPUs too, I haven't really tried but I wouldn't be surprised.