If its pulling 1.75 watts per 3.17MH for scrypt thats a little over 2x increase in efficiency over KNC titans 3.9 watts/MH. Either way these have to be priced pretty low or be near the 10TH speed range to make any financial sense with current BTC/LTC prices.
Using the S5 as an example lets say it has 55 chips that means it runs at 8.4TH @ 1600 watts so if bitman can sell a 55 chip device for 400 then this would have to be priced somewhere around 1-2k USD to make sense.
I think 1.5k would be a sweet spot for such a device but thats probably a dream...even at 1.5k that would mean a 100 day ROI IF (and a BIG IF) difficulty continues to remain flat.
Of course this changes if they can simutainiously mine BTC/LTC ...but I'm pretty sure those stats are for single mode.
Then again people are still paying over 400 for an S5 which will never see an ROI so who knows...
Topic: [ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now - page 65. (Read 129801 times)
April 20, 2015, 03:04:09 PM
April 20, 2015, 02:26:42 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
maybe at the wall .25watts per gh. best case number
they are vague as to exact numbers as I type. 152 gh is mentioned but is that for 1 chip?
or is that for a multi chipped testing board?
152 GH/s for a single chip sounds (at least for now) like a pipe dream.
Spondoolies last chip was 200GH, Minion chip was 100GH, so 150 GH seems fine.
Anyway, we'll soon know with the test boards
Apologies, I left out the 152 GH/s while simultaneously doing 3 MH/s Scrypt - but I realize now that might not have been his point. The problems of posting while in class.
I interpreted those as separate mining modes, sha256 or scrypt like the last chip. Mixed mode specs will be interesting but I think most people will run it in a single mode, again like last chip.
April 20, 2015, 02:24:58 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
J/Gh makes perfect sense - it's equivalent to W/Gh/s at the chip level - you just can't draw any conclusions from it without also knowing the associated Gh/s number. Ideally Bitcoin mining chip manufacturers would take a page out of established industry's datasheets and put in a decent chart that gives a better idea, even if it doesn't further marketing. E.g. a J/Gh over Gh chart, preferably with multiple plots if Vcore performance is determined by separate Vcore and clock frequency.
In the end, though, the chip's performance only tells part of the story - what if the high hash rates require fierce cooling? What if the chip itself needs complex voltage regulation and/or control circuitry? How do all those affect the actual power draw at the wall (which would be highly miner-dependent)?
I'd sign up to receive more information and wait for the reference board's specs, that should give a better idea of suitability for developers and some figures to argue over for end-users who'd use the thing 'as is'
April 20, 2015, 01:45:16 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
maybe at the wall .25watts per gh. best case number
they are vague as to exact numbers as I type. 152 gh is mentioned but is that for 1 chip?
or is that for a multi chipped testing board?
152 GH/s for a single chip sounds (at least for now) like a pipe dream.
Spondoolies last chip was 200GH, Minion chip was 100GH, so 150 GH seems fine.
Anyway, we'll soon know with the test boards
Apologies, I left out the 152 GH/s while simultaneously doing 3 MH/s Scrypt - but I realize now that might not have been his point. The problems of posting while in class.
April 20, 2015, 01:42:23 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
maybe at the wall .25watts per gh. best case number
they are vague as to exact numbers as I type. 152 gh is mentioned but is that for 1 chip?
or is that for a multi chipped testing board?
152 GH/s for a single chip sounds (at least for now) like a pipe dream.
Spondoolies last chip was 200GH, Minion chip was 100GH, so 150 GH seems fine.
Anyway, we'll soon know with the test boards
April 20, 2015, 01:27:54 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
maybe at the wall .25watts per gh. best case number
they are vague as to exact numbers as I type. 152 gh is mentioned but is that for 1 chip?
or is that for a multi chipped testing board?
152 GH/s for a single chip sounds (at least for now) like a pipe dream.
April 20, 2015, 01:18:49 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
maybe at the wall .25watts per gh. best case number
they are vague as to exact numbers as I type. 152 gh is mentioned but is that for 1 chip?
or is that for a multi chipped testing board?
April 20, 2015, 12:49:34 PM
So how do these power specs translate into watts per chip in both modes? Or is there a mistype and those specs should ready J/s? .19J/GH makes no sense.
April 20, 2015, 11:20:08 AM
I'd be interested in a dev board/HDK, and probably loose sample chips as well.
April 19, 2015, 10:18:36 PM
What's the current estimate for miners based on this chip to be released?
I don't know but I believe the op mentioned a working model demo in May. I am waiting for it.
April 19, 2015, 10:16:38 PM
What's the current estimate for miners based on this chip to be released?
April 19, 2015, 08:44:22 PM
I would love to be on the list, assuming that's still possible.
April 18, 2015, 03:16:43 PM
waiting on new gear from here. once a new item is available. i will buy it and do a long review with it and since I purchased it on my own I don't have to hear or read if I favor or disfavor the company or the gear
.
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April 18, 2015, 09:54:45 AM
What is the cost for this dev board? I am pretty sure its not free.
No, I expect to pay something for the board. The more boards going out the better the innovation will be. No reason to limit them as long as they are recouping their costs.
Agree 100%. This could be a pretty revolutionary product and the more minds working on how to make them perform ideally the better. I don't mind paying for a board or two in order to help this along.
April 18, 2015, 03:27:40 AM
What is the cost for this dev board? I am pretty sure its not free.
No, I expect to pay something for the board. The more boards going out the better the innovation will be. No reason to limit them as long as they are recouping their costs.
Since they will be "sample" boards, probably hand made, you can expect to pay something close to 1$/Gh (nominal hashing speed).
I'm also interested in sample chips since in july and august last year I worked on a design for Gridseed chips that never came up because I was unable to source the chips.
Maybe this time will be the good one.
April 18, 2015, 01:31:36 AM
i'm more interested in buying a compedetive Product
April 17, 2015, 11:23:47 PM
What is the cost for this dev board? I am pretty sure its not free.
No, I expect to pay something for the board. The more boards going out the better the innovation will be. No reason to limit them as long as they are recouping their costs.
Limited numbers of boards, limited numbers of chips, Limited time to bring boards up and test them and provide the admin on the engineering samples. Lots of limiting things.
I was surprised how many names came up. I really would be surprised if they are able to get so many dev boards. If making them by hand will take quite a while.
I do like that SFards is making them available no matter who ends up with them.
April 17, 2015, 10:46:40 PM
What is the cost for this dev board? I am pretty sure its not free.
No, I expect to pay something for the board. The more boards going out the better the innovation will be. No reason to limit them as long as they are recouping their costs.
Limited numbers of boards, limited numbers of chips, Limited time to bring boards up and test them and provide the admin on the engineering samples. Lots of limiting things.
April 17, 2015, 10:31:12 PM
What is the cost for this dev board? I am pretty sure its not free.
No, I expect to pay something for the board. The more boards going out the better the innovation will be. No reason to limit them as long as they are recouping their costs.
April 17, 2015, 05:55:18 PM
Please add me to the list too if possible, it's quite interesting to test new gear 
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