[ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now

[jadefalke]

1 units  $1,129 ?

That's the price which was leaked + MOQ=100, so it looks like that are pretty expensive toys...

[philipma1957]

MOQ is 100  
so it's industrial dual mode miner, not home miner  

does not matter anyway at those specs at the (we think is correct from previous posts) $1,129 usd price for 1.7TH and 47mh scrypt
it does not work as an industrial dual mode miner either (probably worse at least as a home miner you could justify it as a 'toy')

just saying . again imho they will make their money not on these miners but their own defacto as the norm these days ..giant
IPO funded data hall/farm with their at cost chips

and maybe later sell bulk chips to others to also make equip and their data hall versions of such

the units they announced are again imho just to get the word out to show the flag they will imho move very few if any

not that I know squat ..but assuming the above posted on here price above is correct.....that is my view

They will very likely do this.  Just as Avalon did with the 4.1

I think no Chinese  company will really go at bitmaintech, ever since FriedCat left the scene bitmaintech has had no Chinese competition to speak of.

[Subw]

How much Avalon 4 were sold?

[philipma1957]

How much Avalon 4 were sold?

More then 300  is the best I can say.  Back in Dec ehash had 300 available when I purchased it slowly sank down  to 0.

My guess is they had more of them maybe 2000  but that is a guess based on some info on kanos pool last dec.  They were pointing about 2ph at his pool I assume that would be 2000 units.

[dogie]

How much Avalon 4 were sold?

More then 300  is the best I can say.  Back in Dec ehash had 300 available when I purchased it slowly sank down  to 0.

My guess is they had more of them maybe 2000  but that is a guess based on some info on kanos pool last dec.  They were pointing about 2ph at his pool I assume that would be 2000 units.

1000s and 1000s and 1000s in CN.

[philipma1957]

How much Avalon 4 were sold?

More then 300  is the best I can say.  Back in Dec ehash had 300 available when I purchased it slowly sank down  to 0.

My guess is they had more of them maybe 2000  but that is a guess based on some info on kanos pool last dec.  They were pointing about 2ph at his pool I assume that would be 2000 units.

1000s and 1000s and 1000s in CN.

That would make a lot of sense.  I looked about and found about 3.6ph  mining on Kano's pool last year.

 if they ran at 1th that would be 3600 of them.  Selling in China = low shipping so most sold in China.

[kenshirothefist]

Hey, SFARDS, if possible, please include our extranonce.subscribe patch into your minerd, please find it here: https://github.com/nicehash/minerd-sfards/commits/master

btw: please update your GIT to include your source code in regular tree, not as a single tar.gz file (https://github.com/sfards/ASIC-SF3301/tree/master/miner_code), it's impossible to push updates/patches to your repository the way you have it currently...

[TheRealSteve]

[ANN] Sfards ASIC Chip SF3301 Sales in North America

[pekatete]

[ANN] Sfards ASIC Chip SF3301 Sales in North America

The price for the 40 chips is un-canily similar to the one leaked here for the unit ...... so now the resale chip price is known ($29.98/chip for 40 chips), how accurate were the SF100 price estimates from our "experts" of industry?

[philipma1957]

[ANN] Sfards ASIC Chip SF3301 Sales in North America

The price for the 40 chips is un-canily similar to the one leaked here for the unit ...... so now the resale chip price is known ($29.98/chip for 40 chips), how accurate were the SF100 price estimates from our "experts" of industry?

Available August which means they won't let you spec on the price of LTC since the chips won't be available after the LTC price is adjusted for the ½ ing.
So if you are bullish on LTC  spend your money on LTC not chips.

I can buy 100 LTC for a lot less then 40 of  these chips…  

[dualminer]

I can buy 100 LTC for a lot less then 40 of  these chips… 

SF3301 chip does have the best power efficiency in both BTC and LTC mining.

LTC power measurement
Voltage(V)   Frequency(MHz)   Power(W)   HashRate(MHahs)   W/MHash/s
0.8   450   2.18   1.21   1.79
0.9   700   4.34   1.89   2.30

BTC power measurement
Voltage(V)   Frequency(MHz)   FBB(V)   Power(W)   HashRate(GHash)   W/GHash/s
0.6   225   0.0   10.98   36.00   0.31
0.8   625   0.0   53.60   100.00   0.54
0.6   300   +- 0.6   14.88   48.00   0.31
0.8   870   +- 0.6   77.68   139.20   0.56
0.6   450   +- 1.1   23.28   72.00   0.32
0.8   950   +- 1.1   97.28   152.00   0.64

[TheRealSteve]

( formatting clean-up )
LTC power measurement

Voltage(V)	Frequency(MHz)	Power(W)	HashRate(MHahs)	W/MHash/s
0.8	450	2.18	1.21	1.79
0.9	700	4.34	1.89	2.30

BTC power measurement

Voltage(V)	Frequency(MHz)	FBB(V)	Power(W)	HashRate(GHash)	W/GHash/s
0.6	225	0.0	10.98	36.00	0.31
0.8	625	0.0	53.60	100.00	0.54
0.6	300	+- 0.6	14.88	48.00	0.31
0.8	870	+- 0.6	77.68	139.20	0.56
0.6	450	+- 1.1	23.28	72.00	0.32
0.8	950	+- 1.1	97.28	152.00	0.64

[Epoch]

I can buy 100 LTC for a lot less then 40 of  these chips… 

SF3301 chip does have the best power efficiency in both BTC and LTC mining.

LTC power measurement
Voltage(V)   Frequency(MHz)   Power(W)   HashRate(MHahs)   W/MHash/s
0.8   450   2.18   1.21   1.79
0.9   700   4.34   1.89   2.30

BTC power measurement
Voltage(V)   Frequency(MHz)   FBB(V)   Power(W)   HashRate(GHash)   W/GHash/s
0.6   225   0.0   10.98   36.00   0.31
0.8   625   0.0   53.60   100.00   0.54
0.6   300   +- 0.6   14.88   48.00   0.31
0.8   870   +- 0.6   77.68   139.20   0.56
0.6   450   +- 1.1   23.28   72.00   0.32
0.8   950   +- 1.1   97.28   152.00   0.64

Having the best power efficiency means little if the device is priced unreasonably. From this table the most reasonable setting for BTC mining seems to be 72GH/w at an efficiency of 0.32W/GH/s (efficiencies above 0.5W/GH/s have no advantage over current competitors' hardware). Let's compare that with an S5. You'd need 16 sfards chips @72GH/s to achieve 1155 GH/s. Each chip is currently offered for $30, so that's $480 just for the chips. Then you'd need to add the supporting hardware around it; printed circuit boards, a controller, DC-DC converters, supporting circuitry, a case, connectors ... and a markup. How much would such a miner sell for if  the chips themselves are $480? The S5 goes for $360 US ...

And in terms of efficiency, what's important is the *system* level efficiency; chip-level efficiency is not that useful beyond academic discussion. Even Spondoolies' current Rockerbox chip can easily be shown to achieve better than 0.4W per GH/s. Put those chips in a practical miner, with supporting circuitry and DC-DC converters, and you quickly see that chip-level efficiencies can no longer be achieved on a system level.

As far as I know, there are no 'practical miners' made with the SF3301 yet. And by 'practical' I'm referring to something that can compete on a GH/$ level with current miners such as the $360USD 1155GH/s S5. Until system-level specs are demonstrated for an sfards-based miner, there's little point in discussing chip-level efficiency.

[dualminer]

Having the best power efficiency means little if the device is priced unreasonably. From this table the most reasonable setting for BTC mining seems to be 72GH/w at an efficiency of 0.32W/GH/s (efficiencies above 0.5W/GH/s have no advantage over current competitors' hardware). Let's compare that with an S5. You'd need 16 sfards chips @72GH/s to achieve 1155 GH/s. Each chip is currently offered for $30, so that's $480 just for the chips. Then you'd need to add the supporting hardware around it; printed circuit boards, a controller, DC-DC converters, supporting circuitry, a case, connectors ... and a markup. How much would such a miner sell for if  the chips themselves are $480? The S5 goes for $360 US ...

And in terms of efficiency, what's important is the *system* level efficiency; chip-level efficiency is not that useful beyond academic discussion. Even Spondoolies' current Rockerbox chip can easily be shown to achieve better than 0.4W per GH/s. Put those chips in a practical miner, with supporting circuitry and DC-DC converters, and you quickly see that chip-level efficiencies can no longer be achieved on a system level.

As far as I know, there are no 'practical miners' made with the SF3301 yet. And by 'practical' I'm referring to something that can compete on a GH/$ level with current miners such as the $360USD 1155GH/s S5. Until system-level specs are demonstrated for an sfards-based miner, there's little point in discussing chip-level efficiency.

Sure, the ultimate judgement will be the system level efficiency, but you have to have a good core chip level efficiency as a base to build upon it. We convinced Sfards to sell SF3301 to US market because this is a "big mining" chip, and requires good system level design expertise to make efficient  mining systems.
Regarding to pricing, the $29.98/chip price is set for small-quantity sampling purposes. Customers will get volume discount when their entering productions. Also, please keep in mind the LTC side of value this chip could bring in. I wish LTC price could recover continuously from here and keep for a long time ahead.

[Gladimor]

Will they allow individual sales? Why MOQ 100... there will have to be groupbuys for the small fish then.

[adaseb]

Anything think this company is pushing the price of LTC/BTC to increase sales of this miner?

No idea why the price basically more then tripled in the last month.

[jadefalke]

Anything think this company is pushing the price of LTC/BTC to increase sales of this miner?

No idea why the price basically more then tripled in the last month.

lol no, if the would have the force to do that, they do not need to sell miner

[philipma1957]

Anything think this company is pushing the price of LTC/BTC to increase sales of this miner?

No idea why the price basically more then tripled in the last month.

speculation on the ½ ing of block size. it comes in under 45 days.

[dunand]

Anything think this company is pushing the price of LTC/BTC to increase sales of this miner?

It's like an air conditioning company polluting to the maximum to increase global warming.

[jstefanop]

Anything think this company is pushing the price of LTC/BTC to increase sales of this miner?

No idea why the price basically more then tripled in the last month.

It would take many millions to push the price by one company to the point it is at now (probably 10s of millions). They probably invested a fraction of that to develop these chips.