Author Topic: Litecoin Mining - 2014 GPUs  (Read 4525 times)

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Offline crg31Topic starter

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Litecoin Mining - 2014 GPUs
« on: February 24, 2014, 01:05:26 AM »
Im fairly new to this.  The top few known cards are scarce as hell to come by.  With that being said, aren't they any newer model cards or higher end cards that work for this?
In my situation.............my ELECTRICITY IS FREE.  So im not worried about cost of running the rig.  I originally was targeting 7990's but they seem to be non existent.  And the cards below are either just as hard to come by or, are now ridiculously priced.  So is their a step up from the 7990s?  To an extent I feel like everyone uses the same cards because this was virgin territory and everyone copies the same methods.  I just find it curious that no one says put in 1 ........XYZ card (Some $2k priced super card)  That would essentially do the same as 2 x 7970's or something.

When are the video card companies coming out with a replacement for the 7990s and 7970s.. It seems like they enjoying people scrambling for their other cards.  Are they playing the supply demand game.  A rep told me they stopped producing them.  Seems odd with the popularity.  They could charge distributors more and they would gladly pay it with the demand.

So part 2 of the question would be.... what makes a gpu good at mining.  What is the tech spec?  Their has to be some formula...  (Clockspeed x Y)+(Memory Cores x Z)...

What is that formula??


Offline Oldgamer

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Re: Litecoin Mining - 2014 GPUs
« Reply #1 on: February 24, 2014, 04:42:34 AM »
I have 7990 and R9 280X cards and I can say that two R9 280X cards will be more efficient than one 7990. 7990 card has average 1180 KH/S and R9 280X has 720 KH/S. 7990 runs 80-81C and R9 280X runs at 76-78C. Well, I was lucky to pay only $579 for 7990, and I paid $419 for R9 280X. I just want to say that with 7990 I had more temperature hassles than with R9 280X. I don't want to play with BIOS, so my card not undervoltaged. If not the cooling issues, I would get much better rate with 7990.
Now, you do not need to know formula, you can just look on hardware mining comparison chart to see which card is better, but generally most important element is shaders number and gpu clock.
Also, I would not put my all money into one magic card around $2k if it even exist, cause it is too dangerous. Your power supply can go bad one day and you will lose most of your investment. Looking this way it is better to have 2 less expensive cards vs one expensive.

Offline crg31Topic starter

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Re: Litecoin Mining - 2014 GPUs
« Reply #2 on: February 24, 2014, 08:41:19 PM »
Thank you for actually reading what I asked and answering.

I've tried other forums where I get answers like... use X card because Y card cost a lot in electricity...   Where as in this post one of the first things stated was electricity is not a concern of mine.

While I do understand your statement about risk in putting to much into a "magic card", I just find it hard to believe that no better card has come out. Some of these models have been out for 2-3 years.  Ive seen the charts, they all seem to be mirrors of the other charts.  My fear is its the "lemming" occurrence. 

My orig plan was to do 3x7990's in an open case, with risers. 1600w Power supply. 

Offline Oldgamer

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Re: Litecoin Mining - 2014 GPUs
« Reply #3 on: February 26, 2014, 03:39:40 AM »
I just find it hard to believe that no better card has come out. Some of these models have been out for 2-3 years.
I will try to explain this the way I understand:
Do you find it hard to believe that standard line phone made 25 years ago still sounds better on another end that all fancy-shmancy smart phones or whatever? It just does simple task what phone should do, no more and no less.
When video card is mining it solves some simple math tasks, no need for most features required for modern games. Hashing rate depends of number of shaders (they work in parallel means more of them is better) and clocking (higher clocking - faster shaders solving task). Newer cards have a lot of new futures very useful for great gaming, but no need in them for this particular task solving.
Unless manufacturers will make special cards designed specifically for mining and put money let say in more shaders, saving on futures necessary for great gaming.
So, basically I can see new cards can be better in other factors mostly, as better cooling design, or more energy effective, but those things do not change fast.
« Last Edit: February 26, 2014, 04:59:50 PM by Oldgamer »

 

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