Sha256 miner with best hash to power ratio.

[cryptocoiner]

Im looking to buy sha256 miner asic. Just to try it and help the bitcoin network. So wonder what should i be lloking for? Have a feeling main thing novadays is a power effectivness. So what asic today have the best hash to power ratio?

[aurel57]

Im looking to buy sha256 miner asic. Just to try it and help the bitcoin network. So wonder what should i be lloking for? Have a feeling main thing novadays is a power effectivness. So what asic today have the best hash to power ratio?

I would think either a Bitmain S5 or a Spondoolies

[Rabinovitch]

Exactly. 

[Finksy]

I wouldn't even consider buying a miner from another company but Bitmain or Spondoolies at the moment.  Maybe Asicminer, once they prove that they can build a unit that doesn't Erupt into flames.

[Rabinovitch]

What about Avalon 4.1? Looks to be a good miner also.

[t0rik29]

What about Avalon 4.1? Looks to be a good miner also.

I think that it is too noisy and not worth the money

[Sine(X)]

Currently Bitmain and Spondoolies.
"Tomorrow" (i.e. soon) likely ASICMiner and BitFury

[Trends]

What about Avalon 4.1? Looks to be a good miner also.

I think that it is too noisy and not worth the money

Easy to tell who reads the reviews!!

Trends

[Xian01]

What about Avalon 4.1? Looks to be a good miner also.

Not as efficient as either the SPTech or Bitmain products.

[Bicknellski]

Spondoolies Tech
Bitmaintech

of course if you want wholesale

Bitfury

Avoid the rest.

These companies will provide you the best options and prices especially if you have a larger order.

If you a just want a single miner to play with get something used that isn't overly efficient as you wouldn't able to make or recoup the costs really.

If you are not looking at Ph/s then you are not really in the game at this point and you'd be better off supporting the "network" by BUYING BTC and using it.

[mishax1]

KNC just announced that they are in tapeout phase with their 16nm mining chips, but that of course is going to their farm and cloud mining. (don't buy from knc)

I would advise you to wait for the 16nm and in the meantime buy bitcoin on its dips..

[Syke]

What about Avalon 4.1? Looks to be a good miner also.

Ok miner from a bad company. Avoid Avalon at all costs.

[Sine(X)]

KNC just announced that they are in tapeout phase with their 16nm mining chips, but that of course is going to their farm and cloud mining. (don't buy from knc)

I would advise you to wait for the 16nm and in the meantime buy bitcoin on its dips..

TSMC will produce 16nm chip in 3Q2015
How KNC will get 16nm chip before?

[tonygal]

TSMC will produce 16nm chip in 3Q2015
How KNC will get 16nm chip before?

Intel Core M-5Y10a for example is 14nm technology and shipped last year. Also I think a SHA-chip
is much easier to get to tape out than a gpu/cpu, so it would not be too surprising to see
an ASIC of any kind of a given node size before a cpu/gpu.

[Sine(X)]

TSMC will produce 16nm chip in 3Q2015
How KNC will get 16nm chip before?

Intel Core M-5Y10a for example is 14nm technology and shipped last year. Also I think a SHA-chip
is much easier to get to tape out than a gpu/cpu, so it would not be too surprising to see
an ASIC of any kind of a given node size before a cpu/gpu.

The thing is that TSMC in 2014 said that they will have 16nm in 1Q2015. After that KNC and Cointerra said that they will have 16nm chip also in 1Q2015. TSMC delay producing to 3Q2015, Cointerra bankrupt, about 50 customers have lawsuit against KNC.. So should we believe them?

[mishax1]

TSMC will produce 16nm chip in 3Q2015
How KNC will get 16nm chip before?

Intel Core M-5Y10a for example is 14nm technology and shipped last year. Also I think a SHA-chip
is much easier to get to tape out than a gpu/cpu, so it would not be too surprising to see
an ASIC of any kind of a given node size before a cpu/gpu.

The thing is that TSMC in 2014 said that they will have 16nm in 1Q2015. After that KNC and Cointerra said that they will have 16nm chip also in 1Q2015. TSMC delay producing to 3Q2015, Cointerra bankrupt, about 50 customers have lawsuit against KNC.. So should we believe them?

From WIKI:
Tape-out
In electronics design, tape-out or tapeout is the final result of the design cycle for integrated circuits or printed circuit boards, the point at which the artwork for the photomask of a circuit is sent for manufacture

[Sine(X)]

TSMC will produce 16nm chip in 3Q2015
How KNC will get 16nm chip before?

Intel Core M-5Y10a for example is 14nm technology and shipped last year. Also I think a SHA-chip
is much easier to get to tape out than a gpu/cpu, so it would not be too surprising to see
an ASIC of any kind of a given node size before a cpu/gpu.

The thing is that TSMC in 2014 said that they will have 16nm in 1Q2015. After that KNC and Cointerra said that they will have 16nm chip also in 1Q2015. TSMC delay producing to 3Q2015, Cointerra bankrupt, about 50 customers have lawsuit against KNC.. So should we believe them?

From WIKI:
Tape-out
In electronics design, tape-out or tapeout is the final result of the design cycle for integrated circuits or printed circuit boards, the point at which the artwork for the photomask of a circuit is sent for manufacture

What does it mean? Will KNC have 16nm next month?

[mishax1]

Probably in like 4-6 months until operational hardware.

[Biffa]

It means that they have reached tape-out stage, reaching that stage has no bearing on how long it takes from tape-out to reach full production, minimum is probably around 3-6 months. But if they have to wait for foundry could be much longer.

[Sine(X)]

It means that they have reached tape-out stage, reaching that stage has no bearing on how long it takes from tape-out to reach full production, minimum is probably around 3-6 months. But if they have to wait for foundry could be much longer.

Thank you, now it's clear. So next power improvement will on 28nm chip by BitFury, ASICMiner or Spondoolies. We'll see who will the first, more effective and whether overtake Bitmain with upgrade S2 (0.4W/Ghs if we may believe them). Likely AM or BitFury will produce earlier than Spondoolies.