Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs

[tacotime]

Updated guide for 700+ KH/s 7970 instructions

[1715690546]

1715690546

[1715690546]

1715690546

[sinner]

whats the best GPU i can actually buy right now for BTC or LTC mining?

i found ATI Radion 5870s for sale online but they were for Mac.

i'm not looking to make money, i just want to mine BTC/LTC.

[tacotime]

For single card, 6990s get about 900 kh/s

Otherwise 6970s (~490 kh/s) or 7950s (~600 kh/s easy)

[cdog]

Im looking to spend $300 max on a new card, but Im planning to buy used. I was thinking a used 5970 (around $250), but should I get something else?

Dont want to spend much over $300, under preferably.

[nethead]

7970: 20992, 21712, or 24000 (~650 kh/s can be obtained with reaper and core/memory ratio of 0.57, e.g. 900 MHz core and 1580 MHz memory.  Over 725 KH/s can be achieved with memory overvolting.)

Those concurrences are too high for "2" lookup gap 

[tacotime]

They work fine on my 7950s.  Are you using the Windows build of reaper, or did you compile it yourself on unix?

[tacotime]

Im looking to spend $300 max on a new card, but Im planning to buy used. I was thinking a used 5970 (around $250), but should I get something else?

Dont want to spend much over $300, under preferably.

There are lots of 7950s for ~$290, the best is the gigabyte triple fan one.  The 7950s will have a higher resale value  and you get a 2-3 year warranty with them.

[meebs]

Im looking to spend $300 max on a new card, but Im planning to buy used. I was thinking a used 5970 (around $250), but should I get something else?

Dont want to spend much over $300, under preferably.

There are lots of 7950s for ~$290, the best is the gigabyte triple fan one.  The 7950s will have a higher resale value  and you get a 2-3 year warranty with them.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414

I have 3x of these.. wonderful cards. 600 mhash in BTC and 650 khash in LTC.

Those numbers require a bit of overclocking.. and you need to have GOOD cooling in your room or computer or they will get a bit toasty.

[Scratch]

Hey Taco, higher profitability = higher PPS yeah?

[tacotime]

Pps? Pay per share?

Share price varies by pool (different donation %) and by the difficulty per share

[Scratch]

Using notroll.



We were up at 1.86 earlier which is the highest Ive seen it, just wondering the effect.

[tacotime]

Profitability is based on the price of LTC in USD and the difficulty of litecoin and bitcoin.  Higher profitability means that it's more profitable to mine right now than bitcoin.

Share price is based on the current difficulty and the share difficulty.  It's how much you get paid for every solution you have that is higher than the share difficulty.

Payout per Share = ( (48.5 LTC per block) / (65536 × Current Difficulty) ) * share difficulty

Current difficult is given by the network, right now it's 17.60344
We get 48.5 LTC per block because there is a 3.0% fee at notroll.in
The share difficulty for notroll.in is always 32

[Scratch]

TY man. Had a good idea of most of it, just wondering where they were getting profitability from.

[serraz]

not sure if its already been covered in here but.

In my experimentation on getting the highest hashes out of a stock 5970 here are the settings myself and multiple other people use.

BTC : cgminer -o pool -u worker -p password -i 9 -v 2 -w 256 -k diablo -g 1 -s 30 -E 60 (350 - 360 kh/s per GPU)
LTC : cgminer --scrypt -o pool -u worker -p password x --shaders 1600 --intensity 18 -worksize 128 -g 1 --no-submit-stale --expiry 10 (350 mh/s per GPU)

Parts in bold are optional they make no difference to hashes

This is using cgminer 2.10.5.

[Scratch]

Forgot to add to this, man can you get away with a fair undervolt with Scrypt mining

[koalahauff]

My gigabyte 7950 settings(620 kh/s)
core 1020 mem 1575

Code:

Driver 13.1
In reaper.conf make sure to use device 0
litecoin.conf
worksize 256
vectors 1
intensity 20
threads_per_gpu 1
sharethreads 32
lookup_gap 2
gpu_thread_concurrency 28000 

[klear]

After following the guide for 7970, I get spammed with Error from server, I think  have typed in the server info correctly
reaper.conf

Code:

kernel reaper.cl
save_binaries yes
enable_graceful_shutdown no
long_polling yes
platform 0
device 0
# device 1
# device 2
# device 3

mine litecoin

litecoin.conf

Code:

host ltc.kattare.com
port 9332
user 
pass 


protocol litecoin

worksize 256
vectors 1
aggression 20
threads_per_gpu 1
sharethreads 32
lookup_gap 2
gpu_thread_concurrency 21712

Any ideas?

[tacotime]

Reaper.conf is invalid, see 1st page

[klear]

made that change, now reaper.exe closes instantly when I open it

Edit: was using reaper v12, changed to v13b4 seems to be working

Quite a bit of slowdown in windows, what is the closest setting to intensity for bitcoin?

LTC tips for the help!

[tacotime]

Intensity/aggression 13 or 14 is best if you still want to use the computer

People who have pmed me, I'm sick w flu, will get back to you soon