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Rudarenje/Mining/Bitcoin

deluxe

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Shang Tsung

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MiniRig, dafuq?

:eek:



Izgleda slaba vajda od ovoga zaista.
 

animaN

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Pitanje za iskusnije.Koliko moze da napravi mesechno novca sa tim MiniRig-om? Kapiram da ako bi više ljudi učestvovalo u kupovini da ovih 15 dolara i nije neka prevelika investicija?

:wave:
 

Rapture

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Kad bi sad uleteo mozda oko 1900e, medjutim sto vise njih ima ovu masinu, to ili vise skace tezina, ili pada vrednost bitcoin-a, tako da sve je to pitanje kad sta i koliko...
 

demios

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sve je po malo kocka i rizik.
lichno ne verujem da ce skoro asic makine ugledati svetlost dana.
nagrada ce se prepoloviti, ali ce i vrednost skochiti, a pasti diff vrvatno.

ulagati trenutno veliku lovu u ovo....? ne znam...ja bih sachekao januar februar, pa onda...jer ako asic ipak izadje, kao shto kaze mige, potisnuce gpu majning skroz.....zilion grafika ochekujte na oglasima po jako povoljnim cenama :)
 

deluxe

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Chabex

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~~~~~~~~~~~~~~~~~
Dobro sad, svi imamo i matičnu i ram i procesor i napajanje tako da bi jedini izdatak bila 7950 koja košta 280-290evra nova. Ako neko ima slabu kartu može da proda i kupi 7950 ili samo doda ;).
Ali ova računica stoji, što se tiče potrošnje i pogotovo je tačno za posebnu mašinu koja bi bila samo za kopanje onda to sve treba kupiti +grafika ;).

I ovi "američki" proizvodi nas izađu dosta skuplje nego na sajtu tamo, ova od 600$ sa dostavom i carinom sigurno jedno 750-800evra
 
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deluxe

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Pa neka je i 800€. Za iste pare moze da se kupe 2x HD 7950 i da se ima oko 1100MH/s ali to trosi 450W sa procesorom dok ona gore masina pravi 830MH/s i trosi 80W. Smatram da je samo logicno sta je isplativije, i da uz onu masinu ne treba graficka, jer masina sve radi sama, treba komp i internet.
 

d0minat0r

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ne znam ali ozbiljno se razmisljam da prodam moju 5850 i cekam kada ce da pukne to jel ce biti kartica po oglasima bud zasto :D naravno kupim sa pisanom garancijom i boli me uvo sta joj je radjeno
 

Kobatz

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Sta god da joj je radjeno je malo u odnosu sta to sta ces joj ti uraditi sinovac :P
 

warmaster

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Pa neka je i 800€. Za iste pare moze da se kupe 2x HD 7950 i da se ima oko 1100MH/s ali to trosi 450W sa procesorom dok ona gore masina pravi 830MH/s i trosi 80W. Smatram da je samo logicno sta je isplativije, i da uz onu masinu ne treba graficka, jer masina sve radi sama, treba komp i internet.
Treba prodati to posle :). Grafike uvek mozes da uvaljas :).
 

deluxe

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Treba prodati to posle :). Grafike uvek mozes da uvaljas :).
Veruj mi da bi za manje od godinu vratio ulozeni novac i poceo zaradjivati. Tako da bi te bas bilo briga kad ces prodati to i kome, ne bi se toliko cimao oko toga. ;)
 

MaTRaX

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zbog cega ovo ne radi na nvidia kartama ? :)
 

Rapture

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Kako ne radi? radi...
ali ocajno :troll:
 

MaTRaX

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pa koliko bi mogao iz ove moje karte da izvucem ... ??
 

micri

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d0minat0r

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MaTRaX

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rAMA

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HD 7950 - 520MH/s 200W oko 380$ + maticna + napajanje + ram + procesor = oko 600$

BitForce SHA256 - 832MH/s 80W! (duzina 10cm x sirina 10cm x visina 7 cm) cena 600$ http://www.butterflylabs.com/product-details/
Nisu problem trenutni proizvodi, nego budući koji nailaze.

Jalapeno će na primer za 150$ + poštarina da daje 4500MH/s ;)
http://www.butterflylabs.com/order-form-bitforce-sc-jalapeno/

Litle Single SC za 650$+ptt 30 000MH/s
http://www.butterflylabs.com/pre-order-form-bitforce-little-single-sc/

Ako uspeju da naštancaju dovoljno to će definitivno biti kraj GPU mininga.
 
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deluxe

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Ja te 'pre order' kompujtere za mining nisam ni gledao kako se isti ne nalaze jos proizvodnji a moze se desi da nikad i ne budu. Tako je bilo sa ASIC pa su vracali novac. Inace se slazem sa tobom. :)
 

mige

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Ja te 'pre order' kompujtere za mining nisam ni gledao kako se isti ne nalaze jos proizvodnji a moze se desi da nikad i ne budu. Tako je bilo sa ASIC pa su vracali novac. Inace se slazem sa tobom. :)
Pa tek se sad radi preoder za ASIC. Ja ne znam da su vracali pare. Ti si pomesao ASIC sa necim.
 

animaN

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warmaster

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Nije otpimizovan kod, a AMD se tradicionlano dobro snalazi u OpenCL...

:wave:
U sustini ATI je bolji od nVidia-e zbog veceg broja prostih ALU/Shader-a, koji su klokovani na manjem taktu, dok nvidia ima manje kompleksnijih ALU/Shader-a klokovanih na dosta vecem taktu.

Why are AMD GPUs faster than Nvidia GPUs?

Firstly, AMD designs GPUs with many simple ALUs/shaders (VLIW design) that run at a relatively low frequency clock (typically 1120-3200 ALUs at 625-900 MHz), whereas Nvidia's microarchitecture consists of fewer more complex ALUs and tries to compensate with a higher shader clock (typically 448-1024 ALUs at 1150-1544 MHz). Because of this VLIW vs. non-VLIW difference, Nvidia uses up more square millimeters of die space per ALU, hence can pack fewer of them per chip, and they hit the frequency wall sooner than AMD which prevents them from increasing the clock high enough to match or surpass AMD's performance. This translates to a raw ALU performance advantage for AMD:
AMD Radeon HD 6990: 3072 ALUs x 830 MHz = 2550 billion 32-bit instruction per second
Nvidia GTX 590: 1024 ALUs x 1214 MHz = 1243 billion 32-bit instruction per second

This approximate 2x-3x performance difference exists across the entire range of AMD and Nvidia GPUs. It is very visible in all ALU-bound GPGPU workloads such as Bitcoin, password bruteforcers, etc.

Secondly, another difference favoring Bitcoin mining on AMD GPUs instead of Nvidia's is that the mining algorithm is based on SHA-256, which makes heavy use of the 32-bit integer right rotate operation. This operation can be implemented as a single hardware instruction on AMD GPUs (BIT_ALIGN_INT), but requires three separate hardware instructions to be emulated on Nvidia GPUs (2 shifts + 1 add). This alone gives AMD another 1.7x performance advantage (~1900 instructions instead of ~3250 to execute the SHA-256 compression function).

Combined together, these 2 factors make AMD GPUs overall 3x-5x faster when mining Bitcoins.
 
Vrh