Bitcoin Forum

I want to know the best GPU I can buy right now to profit in script mining. I already have Antminer S3s running alongside, mining new SHA-256 coins but I want to run script mining so that I can cover the losses for running my Antminers.

Is there any updated thread here showing the comparison between various GPUs that are profitable for mining script or other algorithms?

https://litecoin.info/Mining_hardware_comparison

i dont belive any gpus are really profitable , but then again i dont mine anything scrypt , or anything with gpus

If you can obtain free or cheap electricity, then you can use GPUs for mining DASH. But better ask in Altcoins sub-forum.

i actually just bought 2x r9 280x;s for my gaming pc and have free power at home wonder if it would be worth mining ltc or something else when im not actually using my pc

https://bitcointalk.org/index.php?topic=1318921.0

 Does not exist nor has it existed for over 2 years.

 ASIC on Scrypt have pushed so far past GPUs that there is no such thing as a GPU that can profitably mine Scrypt - even with FREE electric, you'll probably have the card die before it manages to mine enough to pay for itself.
 For that matter, the Gridseed GC3355-based ASIC gear is to the point it's not profitable unless your electric is VERY VERY cheap - despite being a lot more efficient than any GPU ever was at mining Scrypt-based coins.


 If you look into non-Scrypt non-SHA256 coins, THOSE can still be mined for a profit in some cases by some GPUs.
 DASH would be a good choice for Maxwell-based NVidia cards given recent X11 optimisations for them, not so good of late on anything AMD though probably profitable enough on free or VERY VERY cheap electric.

You can successfully mine DASH (using latest modified sgminer by Nicehash) or Etherium with non-zero profit. And you can mine BURST (Proof-of-Capacity coin).  ;)

Burst works if you have lots of hdd's  40tb  or more in an external nas

Unfortunately,you can't cover the losses for your running antminers with mining any scryptcoin.
Why ? Because there is ASICs too for scrypt algorithm.shortly its like mining bitcoin with gpu.

But you can mine various coins and make good profits,
monero,monero-like,sia,vanillacoin,spreadcoin

https://www.nicehash.com/index.jsp?p=software#gpu


You can still do nicely if you have enough power like maybe 7 or 8 AMD cards they work best 280X or better and mine the right coins.  and yea the older 7000 series still work ok  .

since im not about mining bitcoin idk about s7.i think it can't exceed 5 years,you know new technologies are presented almost every 1.5 year by the companies.i dont know the all recent maxwell nvidia cards but if you want an advice mine is gtx 960 it has cuda 5.2 its fairly cheaper than higher models when giving good enough performance.
also sp_ , djm34 and others working hard on improving speed of ccminer for compute 5.0 , 5.2 cards

What about the Readon R9 380? It seems a new chip and the newest gpu from readon http://www.newegg.com/Product/ProductList.aspx?N=100007709%20600565502&IsNodeId=1&Submit=ENE

i have big doubts someone is making any profits with GPU unless they have free electricity, otherwise, nope, not a chance.

i would like to know the mining specs for nvidia maxwell gpus.

what are the speeds for 750ti or 980ti mining quark/qubit/x11... ?

 As far as ASIC for Cryptocoin mining goes, the next generation (14/16nm full custom) will be the last for 3+ years, as ASIC will have finally caught up to current "state of the art" for semiconductor manufacturing.

here you go:
http://cryptomining-blog.com/6369-ccminer-spmod-release-cuda-6-5-vs-cuda-7-5-performance-comparison/
http://cryptomining-blog.com/6289-evga-gtx-750-ti-with-different-versions-of-ccminer-spmod/

HD7950 / R9 280 / R9 270 on the AMD side for hash/watt.

7970s / R9 280Xs are also close.

Burst works perfectly for me just with 2x3 Tb HDDs inserted into my humble "mining rig" containing just 2 R9 290s.   ;)

GPU mining is only for cheap electricity users. The mining difficulty is too high now for most people to mine profitably.

Thanks guys for all of your suggestions.

Well, I would like to ask one more question. Is AMD Radeon R9 270x vapor best for x11 mining right now?

I think it has pretty good hashing power and it is more energy efficient too. Also it is used by Genesis Mining too.

Waiting for your recommendations on it along with its pros and cons.

Nothing AMD can match the hash/watt of the Maxwell based Nvidia cards on X11.

 Perhaps the next AMD generation will fix that.

I guess you haven't been reading this forum than.

https://bitcointalk.org/index.php?topic=1298549.0

Those results aren't even with the new Kachur bins.

Pros for the 270 over the 270X:

Pro:  The 270 has exactly the same hardware resource back end that the 270X has:  1280SPs/80TUs/32ROPs on a 256bit memory bus.  Both are Pitcairn chips.

Pro:  The 270 can have better hash/watt than the 270X.  The 270 has a 150W TDP (1 6pin connector) versus the 270X with a 180W (2 6 pin connector).  

Pro:  The 270 should be cheaper than the 270X. 

Cons:  None.  You can clock your 270 up to 270X clocks and get exactly the same amount of hash rate as the 270X, all the while not needing that 180W TDP / 2nd 6pin connector.

That's a no BS explanation so far. Thanks atp1916 :)
Btw, is 1 6pin connector sufficient if I think of overclocking at later dates?

So do you recommend mining with 270 for x11 and x13 algorithms?
Or is it still profitable for mining other algorithms like Script, Quark, Momentum, etc.?

1 6pin is definitely sufficient for 1100/1500 @ stock volts, even with 20% powertune.  In the case of the Asus DirectCUII 270 cards, stock volts is 1.215  :o  That's more than i was running my HD7950s at!

Back when i had my farm operational, a couple of my rigs were full of 270s and i had no issues taking them up to those clocks on stock voltages.   In the end though, i bios-modded them down to 1.05v for 1000/1250 where they were most hash/watt efficient.    I got them down to roughly 120w each, which was pretty nice. I do not remember what they were hashing out at though, so keep that in mind.  FWIW, these were Asus DirectCUII and MSI Gaming 2G 270s.

As for the mining recommendation: I am not up on my coins these days, so i cannot give any recommendations on which coin to mine.  You're on your own there.

 A quote from that thread :

"The numbers you posted put it on par with the GTX980 but at a much higher price. Considering the 980 is 1 1/2 years old,
and second in line, that isn't much to brag about. Will you be testing with the new miner? That might look more impressive."

 And the competative numbers seem to be specific to that one card.

 It's possible the X11 numbers have gotten some AMD optimisation I didn't notice, but I have to wonder how much of the numbers is client updates and how much is that one specific EXPEN$$$$IVE card?


 BTW - I'm actually overall an AMD fan, my RC5 (Distributed.net) farm is ALL AMD 'cause Nvidia isn't even in the same country on that particular project, much less in the same ballpark, but right now there are a lot of places Nvidia rules (mostly stuff I don't do though).
 There are times I think Intel should licence Nvidia GPU cores to use on their "integrated graphics" stuff, since Intel graphic always have been and remain a sad pathetic JOKE.
 (Since the AMD aquisition of ATI, there's no possibility of Intel using GPU cores from their primary competition).