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Topic: My initial Radeon HD 7970 mining benchmarks - page 4. (Read 46819 times)

newbie
Activity: 36
Merit: 0
You cannot find it because what he says is not true, I've been running with 12.1 eversince it came out, Nothing changed as far as OverClocking is concerned.
Just use MSIa, It has a backwards compatable "bug" in thier "unofficial overclocking" that allows you to Attempt to set Any clock to Anything

win7x64 Cat 12.1 SDK 2.6
crossfire6870 990core 490mem <---Sweet spot for mining
Hell, for awhile i had the cards running at 1020 core and 300mem because i was told 300mem was the best, It's the Most Common best, It's quite specific for the cards.

CGminer also changes clocks Flawlessly
I also hear (NEVER TOUCHED) that Shappire Trix is a good tool.

Doesn't seem to work for the 7970, though.  The slider won't go below 685 memory clock.
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
driver 12.x needs a hack in the register to make the memory and proper downclocks possible
google for it you only have to edit one line in register to make it work

Any hints on where to find this info?  I must be using the wrong Google terms because I can't find it.
You cannot find it because what he says is not true, I've been running with 12.1 eversince it came out, Nothing changed as far as OverClocking is concerned.
Just use MSIa, It has a backwards compatable "bug" in thier "unofficial overclocking" that allows you to Attempt to set Any clock to Anything

win7x64 Cat 12.1 SDK 2.6
crossfire6870 990core 490mem <---Sweet spot for mining
Hell, for awhile i had the cards running at 1020 core and 300mem because i was told 300mem was the best, It's the Most Common best, It's quite specific for the cards.

CGminer also changes clocks Flawlessly
I also hear (NEVER TOUCHED) that Shappire Trix is a good tool.
newbie
Activity: 36
Merit: 0
driver 12.x needs a hack in the register to make the memory and proper downclocks possible
google for it you only have to edit one line in register to make it work

Any hints on where to find this info?  I must be using the wrong Google terms because I can't find it.
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
I've got about $6,000 at my disposal and I'm trying to decide if I want to buy 8 more 7970's or buy the bitcoins outright.

That is a no brainer.  Buy 20 used 5970 and get 40 GPUs.


Lolz.  As if you can even sniff a 5970 for $300.  

Everyday on ebay.  Strangely prices have gone up in the last month.  Looks like it is more like $340-$360.  You would think w/ 5970 supply > demand and prices would be falling.
Nah,
$500
http://www.ebay.ca/itm/ATI-5970-2Gb-512Bit-DDR5-DirectX-11-New-warranty-1-year-/270885811822?pt=PCC_Video_TV_Cards&hash=item3f120d766e
New.
hero member
Activity: 774
Merit: 500
Lazy Lurker Reads Alot
driver 12.x needs a hack in the register to make the memory and proper downclocks possible
google for it you only have to edit one line in register to make it work
legendary
Activity: 2044
Merit: 1000
I've got about $6,000 at my disposal and I'm trying to decide if I want to buy 8 more 7970's or buy the bitcoins outright.

That is a no brainer.  Buy 20 used 5970 and get 40 GPUs.


Lolz.  As if you can even sniff a 5970 for $300.  

Everyday on ebay.  Strangely prices have gone up in the last month.  Looks like it is more like $340-$360.  You would think w/ 5970 supply > demand and prices would be falling.

Every 5970 I have seen in the last 2 weeks is 350+ on Ebay.  I know, I have been bidding. 
donator
Activity: 1218
Merit: 1079
Gerald Davis
712  MH/s is better than the 5970 in mh/w I believe, and nearly, if not beats the 5970 at stock.

Sure at 60% to 80% higher cost.  5970 can be underclocked also. 
donator
Activity: 1218
Merit: 1079
Gerald Davis
I've got about $6,000 at my disposal and I'm trying to decide if I want to buy 8 more 7970's or buy the bitcoins outright.

That is a no brainer.  Buy 20 used 5970 and get 40 GPUs.


Lolz.  As if you can even sniff a 5970 for $300.  

Everyday on ebay.  Strangely prices have gone up in the last month.  Looks like it is more like $340-$360.  You would think w/ 5970 supply > demand and prices would be falling.
legendary
Activity: 800
Merit: 1001
I've got about $6,000 at my disposal and I'm trying to decide if I want to buy 8 more 7970's or buy the bitcoins outright.

That is a no brainer.  Buy 20 used 5970 and get 40 GPUs.


BUY THE BTC!!!  Unless you're getting free power, the ROI for $6,000 worth of graphics cards will take so much longer to re-coup vs. any value that BTC rises = profit.

-EP
legendary
Activity: 2044
Merit: 1000
I've got about $6,000 at my disposal and I'm trying to decide if I want to buy 8 more 7970's or buy the bitcoins outright.

That is a no brainer.  Buy 20 used 5970 and get 40 GPUs.


Lolz.  As if you can even sniff a 5970 for $300. 
legendary
Activity: 800
Merit: 1001
Sapphire 7970 - Using phoenix 1.7.3
I'm getting:
550MH/s on 925MHz GPU / 340 MHz memory
712MH/s on 1200MHz GPU / 340MHz memory

Bumping mem to default 1375MHz adds like 5MH/s so I don't really see the point.
I haven't found the lowest stable point for GPU voltage yet, but it seems to be approx 1000mV for 925MHz/340MHz.

Now waiting for optimized kernels Smiley

712  MH/s is better than the 5970 in mh/w I believe, and nearly, if not beats the 5970 at stock.

-EP
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
My Catalyst GUI shows (in the tachometer-style pic) that my memory is way up to default level, even tho I've decreased it down to the lowest value.

The Catalyst GUI will only respect underclocks to 975MHz AFAIK anything lower will get you default memory clocks.

ugh, why do they even give you the option then?  That's so .
Inserted
hero member
Activity: 609
Merit: 500
My Catalyst GUI shows (in the tachometer-style pic) that my memory is way up to default level, even tho I've decreased it down to the lowest value.

The Catalyst GUI will only respect underclocks to 975MHz AFAIK anything lower will get you default memory clocks.

ugh, why do they even give you the option then?  That's so .
newbie
Activity: 43
Merit: 0
My Catalyst GUI shows (in the tachometer-style pic) that my memory is way up to default level, even tho I've decreased it down to the lowest value.

The Catalyst GUI will only respect underclocks to 975MHz AFAIK anything lower will get you default memory clocks.
hero member
Activity: 609
Merit: 500
My Catalyst GUI shows (in the tachometer-style pic) that my memory is way up to default level, even tho I've decreased it down to the lowest value.
Is this normal?  I'm wondering what I should do to correct it if it isn't.  I think I'm on the newest drivers (12.1?)
newbie
Activity: 40
Merit: 0
Sapphire 7970 - Using phoenix 1.7.3
I'm getting:
550MH/s on 925MHz GPU / 340 MHz memory
712MH/s on 1200MHz GPU / 340MHz memory

Bumping mem to default 1375MHz adds like 5MH/s so I don't really see the point.
I haven't found the lowest stable point for GPU voltage yet, but it seems to be approx 1000mV for 925MHz/340MHz.

Now waiting for optimized kernels Smiley
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
Can people post room temperatures also with gpu and %fan. As room temp has pretty huge impact on %fan.
Yeah i agree,
My temps waver by an entire 5° throughout the day, And somepeople may live in cold climated where there "normal" temp inside thier how's is 18°
I live in canada, My home's temp is average 19-20°, Feels hot.
member
Activity: 92
Merit: 10
Can people post room temperatures also with gpu and %fan. As room temp has pretty huge impact on %fan.
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
Got my Diamond 7970 in today.

Running latest DiabloD3 (https://bitcointalksearch.org/topic/diablominer-gpu-miner-1721), I'm getting ~593Mhash/s @ 1000mhz with default settings. Have not started tweaking yet.

Fan running at 70% has the card at ~71C

Woah, and I said its probably possible for >600 on stock clocks. So close.
newbie
Activity: 43
Merit: 0
I'm also contemplating liquid cooling (for other reasons) but there are water blocks out for the 7970 so that would help if I decide to go that route.

Yeah I'm thinking about that as well for my next upgrade. With a waterblock and the right bracket these cards fit in a single slot and overclock so much better. And best of all no more annoying fan!
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