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Topic: [ANN] Bitfury ASIC sales in EU and Europe - page 13. (Read 250482 times)

hero member
Activity: 658
Merit: 500
CCNA: There i fixed the internet.
Will someone translate what 864 rolled hash cores means? What's the speed and what's the difference between rolled and un-rolled cores?
An unrolled core would calculate one hash at each clock, so running at 1MHz one core is 1MH/s
A rolled core calculates the hash in several clock cycles - for Bitfury chips this is 65 cycles, so single core running at 1Mhz will produce close to 15.4 kH/s
If the chip runs at 200MHz - 864 cores are equal to 200*864/65 = 2658.46 MH/s or 2.66 GH/s
For comparison the first revision had 756 cores which at 200MHz is 2.33 GH/s so 15% increase is expected

OMG I've never been so happy to be wrong in all my life
KNK
hero member
Activity: 692
Merit: 502
Will someone translate what 864 rolled hash cores means? What's the speed and what's the difference between rolled and un-rolled cores?
An unrolled core would calculate one hash at each clock, so running at 1MHz one core is 1MH/s
A rolled core calculates the hash in several clock cycles - for Bitfury chips this is 65 cycles, so single core running at 1Mhz will produce close to 15.4 kH/s
If the chip runs at 200MHz - 864 cores are equal to 200*864/65 = 2658.46 MH/s or 2.66 GH/s
For comparison the first revision had 756 cores which at 200MHz is 2.33 GH/s so 15% increase is expected
KNK
hero member
Activity: 692
Merit: 502
I think we'll be working mostly with trays as they're much easier to work with (and test) in the quantities usually needed by DIYers. One full box of trays is 2600 chips.

'Mostly' means that there still will be reels I guess, but are the boxes vacuum sealed or it's each tray separately or neither and chips baking will be necessary?
legendary
Activity: 1904
Merit: 1007
Will someone translate what 864 rolled hash cores means? What's the speed and what's the difference between rolled and un-rolled cores?
hero member
Activity: 560
Merit: 500
NEW REV2 CHIPS HAVE ARRIVED!!

NOTE: THIS IS AN ENGINEERING BATCH. PLEASE DON'T HOARD. 32 CHIPS MAX PER CUSTOMER.
Please don't send PM requests for samples. Samples are available through the web shop.


Chips are pin compatible with the previous version. Expect better performance and lower power consumption. We are currently testing the chip ourselves, so exact performance is still unknown. Please share your experiences and measurements in this thread!!!

...

+ 1

Nice ... this is interesting .. will there be reels for public sale ... ? Later ?

As otherwise I don't see the point if there is no support in chips for DIY.


I think we'll be working mostly with trays as they're much easier to work with (and test) in the quantities usually needed by DIYers. One full box of trays is 2600 chips.
member
Activity: 111
Merit: 10
Bitcoin Entrepreneur
Wonderful, looking forward to higher orders. But can't complain this is fantastic.
hero member
Activity: 686
Merit: 500
FUN > ROI
Pricing is TBD, but will be lower than the engineering samples price.

Bitfury 55nm rev 2 engineering samples €5

Dang, there's some good profit to be made by the board designers/manufacturers Smiley
sr. member
Activity: 434
Merit: 265
NEW REV2 CHIPS HAVE ARRIVED!!

NOTE: THIS IS AN ENGINEERING BATCH. PLEASE DON'T HOARD. 32 CHIPS MAX PER CUSTOMER.
Please don't send PM requests for samples. Samples are available through the web shop.


Chips are pin compatible with the previous version. Expect better performance and lower power consumption. We are currently testing the chip ourselves, so exact performance is still unknown. Please share your experiences and measurements in this thread!!!

...

+ 1

Nice ... this is interesting .. will there be reels for public sale ... ? Later ?

As otherwise I don't see the point if there is no support in chips for DIY.

hero member
Activity: 560
Merit: 500
NEW REV2 CHIPS HAVE ARRIVED!!

NOTE: THIS IS AN ENGINEERING BATCH. PLEASE DON'T HOARD. 32 CHIPS MAX PER CUSTOMER.
Please don't send PM requests for samples. Samples are available through the web shop.


Chips are pin compatible with the previous version. Expect better performance and lower power consumption. We are currently testing the chip ourselves, so exact performance is still unknown. Please share your experiences and measurements in this thread!!!

Pricing is TBD, but will be lower than the engineering samples price.

newbie
Activity: 52
Merit: 0
February 22, 2014, 04:56:59 AM
Well got it running @ 350 GH/s stable, with chainminer autotuning. I beefed up the 12V and ground rails beneath the M-board and also now feeding power to the connectors on the other side of the m-board, but don't know how much that actually helped because i needed to do more card switching to get all cards show up.

There's still one card showing only 20GH/s, few chips are almost 0GH/s. That has has been running over 30GH/s before, so there's clearly something still not quite right. I haven't upped the voltage yet, maybe i'll try to see if overvolting the card or cards in the same bank would help.
newbie
Activity: 52
Merit: 0
February 21, 2014, 09:52:06 AM
Yeah thanks for the fast delivery. Unfortunately, the 4 new cards brought more troubles than hashes: i was happily hashing along with 8 cards, getting about 260GH/s but now with 12 cards, i'm riddled with miso and spi errors, and i still get only 260GH/s. I can get the setup to run @ 350 for a while, but then something happens and errors galore.

I've tried switching the cards around and that did help initially (initially i thought two of the new cards were duds), but that didn't last long. The funny thing is that now the cards that were running without problems have started to act up... i even had two slots die on me, i couldn't get any card to show up in those. But after some restarts and card switcheroo, they are alive again. Heh, i knew that these aren't the easiest to get running, but this something else.

Oh well, back to tweaking...
legendary
Activity: 892
Merit: 1002
1 BTC =1 BTC
February 18, 2014, 11:06:52 AM
Thanks for the VIP-discount Cool


[edit]
Package received, up & running.
btw don't worry about diff, I bought a few H-cards just to fill up some v2 M-boards...no PH's Wink
[/edit]
sr. member
Activity: 346
Merit: 250
no ROI for a fresh starter here ... Huh ... but yea ... here is the best service from all mining suppliers ..

yup.. didnt quite make a nice ROI yet.. still these are the two i'd put my hopes on Smiley
legendary
Activity: 1974
Merit: 1003
no ROI for a fresh starter here ... Huh ... but yea ... here is the best service from all mining suppliers ..
sr. member
Activity: 346
Merit: 250
40nm 0.2J/GH to 0.4J/GH how does that sound? of course they still need to confirm this news with a working chip...

Of course Smiley

The 0.2-0.4J/GH looks impressive (still a wide range, however), now that's only one variable.

Availability (out of the hands of friedcat) and ultimately price per GHS will be the other significant parameter for the market. I sold off my AM shares before the downfall of the securities game in 2013 but I'm considering getting back in for sure.

Anyway, at the current stage of the mining game BitFury is still a safe bet at 1J/GH (vs 2 for the oversold IMHO Antminer)

I agree, for now nothings beats Bitfury for sure even the supposed 28nm chips.


 but I am sure that FC will beat all of them, I didn't sell my shares, I still have them, interesting fact is that in havelockinvestment.com the price already rising back, it is now at 0.625BTC/share and there is no volume to keep it from going even higher,  you can just imagine the dividends from the mining and selling of these chips  Wink

i am just a noob in here but i had that feeling that BITFURY and AM where to become both very important in the future. KNC, BFL, ANT, and other COINTERRAs are just scammers that doesnt really know what they are doing. I'd see BITFURY as the handcrafted rolls royce quality and AM as mass production toyotas ^^ could be awsome if AM merged with BITFURY in the future Cheesy

edit: disclosure: i only bought 1 full kit from bitfury and some AM shares and kept the rest of my BTCs (no altcoins, no other securities and no other preordered s**t) best investment ever i think. Smiley
legendary
Activity: 1148
Merit: 1001
things you own end up owning you
40nm 0.2J/GH to 0.4J/GH how does that sound? of course they still need to confirm this news with a working chip...

Of course Smiley

The 0.2-0.4J/GH looks impressive (still a wide range, however), now that's only one variable.

Availability (out of the hands of friedcat) and ultimately price per GHS will be the other significant parameter for the market. I sold off my AM shares before the downfall of the securities game in 2013 but I'm considering getting back in for sure.

Anyway, at the current stage of the mining game BitFury is still a safe bet at 1J/GH (vs 2 for the oversold IMHO Antminer)

I agree, for now nothings beats Bitfury for sure even the supposed 28nm chips.


 but I am sure that FC will beat all of them, I didn't sell my shares, I still have them, interesting fact is that in havelockinvestment.com the price already rising back, it is now at 0.625BTC/share and there is no volume to keep it from going even higher,  you can just imagine the dividends from the mining and selling of these chips  Wink
legendary
Activity: 1946
Merit: 1035
40nm 0.2J/GH to 0.4J/GH how does that sound? of course they still need to confirm this news with a working chip...

Of course Smiley

The 0.2-0.4J/GH looks impressive (still a wide range, however), now that's only one variable.

Availability (out of the hands of friedcat) and ultimately price per GHS will be the other significant parameter for the market. I sold off my AM shares before the downfall of the securities game in 2013 but I'm considering getting back in for sure.

Anyway, at the current stage of the mining game BitFury is still a safe bet at 1J/GH (vs 2 for the oversold IMHO Antminer)
legendary
Activity: 1148
Merit: 1001
things you own end up owning you
I heard a rumor there would be a Bitfury 2 chip end of Feb.  Wink

At 1W per chip the current generation outperforms Antminer with half the power, it's the same as KnC Miner who "only" promised 30% less W/H in their 20 nm design... when their 28 nm is about the same as BitFury.

Do we have a CoinTerra/Bitmine killer? Smiley

yes asicminer will basically kill all outstanding chips with their new Gen3 chip that will come out March, 40nm 0.2J/GH to 0.4J/GH how does that sound? of course they still need to confirm this news with a working chip...
legendary
Activity: 1946
Merit: 1035
I heard a rumor there would be a Bitfury 2 chip end of Feb.  Wink

At 1W per chip the current generation outperforms Antminer with half the power, it's the same as KnC Miner who "only" promised 30% less W/H in their 20 nm design... when their 28 nm is about the same as BitFury.

Do we have a CoinTerra/Bitmine killer? Smiley
hero member
Activity: 490
Merit: 500
Is there any chance we'll see bare chips back on sale any time soon?  

I heard a rumor there would be a Bitfury 2 chip end of Feb (read March).  Wink

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