30.4.2011: 6GHash --> ~200$/day
sweet
Topic: An estimate of fpga performance - page 3. (Read 51502 times)
Using fpgaminer's numbers for his CycloneIII-120 board.
90k LE's @70MHz = 70Mhash/sec.
Assuming LE's = LUT's and it could actually run this design at 1.5GHz -> 10.5 Gigahash/sec
Using the Cast IP -> 6 Gigahash/sec
Another FPGA company has come up with space time reconfig @ 1.6GHz:
http://www.tabula.com/technology/technology.php
About how many hashes could a fpga like that do?
At an unknown $ amount. Why can't these people just put a dollar amount next to their product?
Or better yet, a BTC amount
. At an unknown $ amount. Why can't these people just put a dollar amount next to their product?
They like to force you to have to call one of their salespersons who will price the product according to how much money you have. Market segmentation at work...
At an unknown $ amount. Why can't these people just put a dollar amount next to their product?
just watching - ignore me 
posting to activate e-mail notifications
hmmmmm....
Quote
What model of FPGA are you currently using?
Altera's Cyclone III EP3C120F780, from the Cyclone III FPGA Development Kit.The design will also run just fine on a Cyclone IV C115, which is a bit cheaper.
The NSA does have its own silicon foundry.
Not anymore. They abandoned it because a decent foundry these days costs multiple billion of dollars which is estimated to be a large fraction the classified budget of the NSA. They now produce chips by buying production capacity from semiconductor companies through the TAPO program.
I could be wrong here but I assumed there was already a need for an efficient version of this out there.
Wouldn't spy agencies or security or whoever want these? Hell maybe they have 100,000 and just aren't saying anything though..
Or are they way more specialized to bitcoin than I realize.
Wouldn't spy agencies or security or whoever want these? Hell maybe they have 100,000 and just aren't saying anything though..
Or are they way more specialized to bitcoin than I realize.
What model of FPGA are you currently using?
You can send to production as ASIC and maybe get 200MHz+
You can send to production as ASIC and maybe get 200MHz+
I'm very interested to see what happens with this too. Do FPGA's follow a similar tech curve to GPU's?
Well, I've been occasionally poking and prodding my design. The pipelined version is clocking at 80MHz now, and down to 80K LEs (64K being the goal, down from 90K). Not huge progress, but I figured I'd keep the thread alive.
posting to follow
Good?
I've gotten 70Mh/s with a Spartan6 LX 150-3, $180 @ 1ea.
he gets the same from a CycloneIII 120-C8, $380 @ 1ea.
and expects about the same from a CycloneIV-E 115-C8, $310 @ 1ea.
I've gotten 70Mh/s with a Spartan6 LX 150-3, $180 @ 1ea.
he gets the same from a CycloneIII 120-C8, $380 @ 1ea.
and expects about the same from a CycloneIV-E 115-C8, $310 @ 1ea.
Current Performance
Device: Altera Cyclone 3 C120 Dev Kit
Performance: 70Mhash/s
Power: 2.26W
Efficiency: 30.9 Mhash/W
Device: Altera Cyclone 3 C120 Dev Kit
Performance: 70Mhash/s
Power: 2.26W
Efficiency: 30.9 Mhash/W
Those are some surprisingly good numbers. Just think what could be done with something like this.
At the same time your results do seem rather better than what I thought can be had on both hash/watt hash/$ . I'd say if you manage to perfect your design, order ASIC fabrication and turn in into some device for sha256 and bitcoin mining this would sell well, not only to bitcoiners but to various spooks too.
If someone were to develop such an ASIC and put it on a small SOC, and networked a bunch in a ribbon, they would make great heat trace cabling for water lines. Parking garages (which still have to have fire suppression systems) have heat trace wrapped around water lines and mains, which are then insulated over that. These water lines have to be heated continuously anytime the outside temp is below 35 degrees, so that cold spots don't freeze & bust the water lines.
I considered making a Linux cluster like this about 10 years ago, but never did anything with the idea. These might sell well in high latitudes.
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