Anyone mining bitcoin?

[haylui]

Nay, not worth unless you don't have to pay for electricity. Cause the power consumption is even higher than payout.

Btw, bitcoin heavily favour AMD cards.

not because bitcoin favour AMD but nVidia CUDA is proprietary

 

[Vincym]

The bitcoin bubble

An interesting read on the price of Bitcoin.

 

[archcherub]

well there are always ltc, ppc, trc, nvc .... to mine, especially ltc since it is ASIC proof.

btw with 3.5 Ghash and the current diff you can get 0.22 coin a day. Current price is $160/btc so 1 day you get US $35.2. Minus electric profit is about US$23.

oooo maybe we shld start mining LTC now for future payoffs?

what type of hardware should I get for the most efficient mining for the least amount of power bill?
shld be quite fun to go SLS and build a ltc-mining-gear haha!

 

[Preety]

oooo maybe we shld start mining LTC now for future payoffs?

what type of hardware should I get for the most efficient mining for the least amount of power bill?
shld be quite fun to go SLS and build a ltc-mining-gear haha!

am working on building my rig.... or farm you would say....

 

[betadyne]

oooo maybe we shld start mining LTC now for future payoffs?

what type of hardware should I get for the most efficient mining for the least amount of power bill?
shld be quite fun to go SLS and build a ltc-mining-gear haha!

But its still slower than using ASIC. I think I saw a company releasing bitcoin mining machines. USD 2499 for a 3.5GH machine.

 

[betadyne]

not because bitcoin favour AMD but nVidia CUDA is proprietary

Not really though. Hashing functions greatly favour AMD hardware. Even cracking AES code, it runs much faster on AMD hardware.

 

[snipes14]

Not really though. Hashing functions greatly favour AMD hardware. Even cracking AES code, it runs much faster on AMD hardware.

Yeah what he said really doesn't make sense. CUDA is just a programming language, unless he's trying to imply that there's some secret function that only nvidia knows to make CUDA code run at full speed.

 

[Kiwi8]

Hmmm interesting.

 

[Preety]

Yeah what he said really doesn't make sense. CUDA is just a programming language, unless he's trying to imply that there's some secret function that only nvidia knows to make CUDA code run at full speed.

Yes, that is true...AMD cards beat the crap out of nvidia cards....most because of the steam processors..

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 noticeably 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, 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.

see the link for the litecoin comparision

References:
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison
https://en.bitcoin.it/wiki/Why_a_GP...CPU#Why_are_AMD_GPUs_faster_than_Nvidia_GPUs?

 

[archcherub]

not a tech kind of guy. hahaha

so i shld get a new separate PC, with a good GPU, to let the gpu card to do the processing..
anyone wanna go SLS soon to build a rig?

 

[Preety]

not a tech kind of guy. hahaha

so i shld get a new separate PC, with a good GPU, to let the gpu card to do the processing..
anyone wanna go SLS soon to build a rig?

Count me in...

i am planning on the AMD 7970/7950 setup...exploring it in this post

http://forums.hardwarezone.com.sg/hardware-clinic-2/mining-pc-comments-thoughts-4208554.html

 

[archcherub]

Think we should have a group here combine to buy equipment... cost savings!! count me in

 

[archcherub]

bump up to see if anyone interested in rigging pc for mining!

 

[SpawnXp]

im interested too..
can host the rig over at my place, power isnt an issue..

 

[terence52]

im interested too..
can host the rig over at my place, power isnt an issue..

Really meh?!

 

[Preety]

im interested too..
can host the rig over at my place, power isnt an issue..

how??? am really curious

 

[SpawnXp]

the folks who are paying the power bills are not concern about anything that is inside my room
as they never come in.
so yeah. no issues.

 

[archcherub]

the folks who are paying the power bills are not concern about anything that is inside my room
as they never come in.
so yeah. no issues.

lol u r a tenant? still...if the bill skyrockets...

 

[SpawnXp]

lol u r a tenant? still...if the bill skyrockets...

nah im not the tenant
and the room is almost in aircon 24/7 ..
so the mining station will be quite cool..

 

[archcherub]

nah im not the tenant
and the room is almost in aircon 24/7 ..
so the mining station will be quite cool..

haha, i will feel bad if the electricity bill rises to threefold or fourfold lol
ok join our club! i sent u a PM!