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Author Topic: Need help making or finding a list of megahash speeds  (Read 3645 times)
mike678
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July 08, 2011, 03:56:40 AM
 #1

I'm considering writing a program and I need to know the average speed you can expect to get overclocked and normal for each ati card 5xxx series and up. Is there a list with this information? If not what is the best way to find this information?

edit: my list

The format is:
Card number
expected non overclocked speed
expected average overclock speed
highest speed possible

#5770
156.8
220
241

#5830
256
311
345

#5850
280
370
429.7

#5870
313
440
490

#5970
750
825
863

#6870
232
300
332

#6950
272
380
454

#6970
370
420
?

#6990
670
820
850

If you could please give me any missing or inaccurate information I would appreciate it.
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whenhowwho
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July 08, 2011, 04:01:31 AM
 #2

go here https://en.bitcoin.it/wiki/Mining_hardware_comparison

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mike678
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July 08, 2011, 04:09:01 AM
 #3

That's not what I want because it doesn't really tell you what the average person is actually getting for speeds... For example the 5830 specs are still on phoenix 1.48 and I'm sure it doesn't have the 3% increase ect.
Also even if that was completely updated it still doesn't tell me realistic speeds for overclock and stock speeds only the max any one has recorded getting.
whenhowwho
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July 08, 2011, 04:12:59 AM
 #4

ok you have a point there but its a good start. It shows a little below what i get with my card. I not sure where one would find an updated list but most people like to post there speeds on this board it seems so maybe with a lot of searching you could make a list

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teukon
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July 08, 2011, 08:22:21 AM
 #5

There's a fair amount of information about current 5850 speeds towards the end of this thread:

http://forum.bitcoin.org/index.php?topic=24949.0
mike678
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July 08, 2011, 03:28:27 PM
 #6

I made a fairly quick list of speeds for what I consider the most used cards. It is not complete and I'm not sure how accurate it is. The format is:
Card number
low speed
average overclock speed
highest speed

#5770
156.8
209.8
241

#5830
256
311
345

#5850
300
380
429.7

#5870
313
?
452

#5970
530
?
863

#6870
232
?
332

#6950
272
?
454

#6970
370
?
423

#6990
670
?
835

If you could please give me any missing or inaccurate information I would appreciate it.
teukon
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July 08, 2011, 04:00:18 PM
 #7

Are we talking about reference cards with stock cooling only here?  If so please discount my eariler post as there some of us are using non-reference cards and/or after-market cooling.
mike678
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July 08, 2011, 06:36:08 PM
 #8

I realize that everyone does different things to their gpu and get different megahash values I'm just trying to find the stock megahash of each card(no changes just start up and go), what the average person gets in a overclock, and the record. For an example for the average I put the 5830 at 311 because I'm pretty sure almost any one who overclocks can reach that.
teukon
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July 08, 2011, 06:51:59 PM
 #9

I realize that everyone does different things to their gpu and get different megahash values I'm just trying to find the stock megahash of each card(no changes just start up and go), what the average person gets in a overclock, and the record. For an example for the average I put the 5830 at 311 because I'm pretty sure almost any one who overclocks can reach that.

Ok.  The records list sounds interesting.  I'm sure there are a few people on these boards with non-reference, water cooled cards who could put up some impressive numbers.  How stable should the record speeds be? (10 seconds? 24 hours?).  It would be nice to see someone get a gpu of any kind to 500 MH/s.

One of my 5850s is happily mining away at 428.0 (+/- 0.1) MH/s on stock voltage with 50% fans (54*C).  I'm sure I could push it to a stable 440 MH/s just by overvolting it a little, overclocking it further, and turning the fans up.
mike678
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July 08, 2011, 06:58:32 PM
 #10

since you seem to know 5850's am I in the ball park for the average overclock on the 5850? Would you change it?
teukon
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July 08, 2011, 07:33:02 PM
 #11

since you seem to know 5850's am I in the ball park for the average overclock on the 5850? Would you change it?

I'm afraid I have little knowledge/experience.  If you really mean 'mean average' rate for an overclocked 5850 my guess would be around 390 MH/s.  If you mean a rate which most people should expect to achieve by overclocking and overvolting their 5850 then I'd say leave it at 380 MH/s.  Basically, enthusiasts with good non-reference cards and after-market cooling will force the average to be higher than the expected rate.
mike678
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July 08, 2011, 07:43:34 PM
 #12

Yea for the middle number I just mean what most people should expect to get from an overclock. Since you said 380 I'll just leave it at that. Also whats the stock 5850 speed with no overclock?
teukon
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July 08, 2011, 08:27:52 PM
 #13

Yea for the middle number I just mean what most people should expect to get from an overclock. Since you said 380 I'll just leave it at that. Also whats the stock 5850 speed with no overclock?

At the moment, between 270 MH/s and 300 MH/s (stock clock of 725 MHz).  Non-reference cards will start about 15-30 MH/s higher because their default clock rates may be 765 MHz or 800 MHz.  This assumes just downloading a miner and whacking in standard settings like VECTORS and BFI_INT.

The variance is wide because you will get a lower average if using various Desktop effects and/or flash hardware acceleration.  Also, the particular version of Catalyst and SDK can both make a significant difference.  If someone just uses the latest drivers and SDK, an easily accessible kernel, and doesn't try to reduce the strain on the card caused by their desktop, then I'd say about 270 MH/s (both Windows and Linux).

Note: The effect on hashrate by a running desktop is largely an unknown to me so this is little more than guesswork.  My card does 288 MH/s on stock core/RAM and I know I'm not using the best Catalyst version but I'm not running a GUI.
Jack of Diamonds
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July 08, 2011, 09:38:13 PM
 #14

Yea for the middle number I just mean what most people should expect to get from an overclock. Since you said 380 I'll just leave it at that. Also whats the stock 5850 speed with no overclock?

Stock is around 270-277 with POCLBM at stock 725mhz..

380 is a rather high average. I'd say most people can push to 340-360 before it starts bluescreening. At that point the clock frequency would need to be way past 900.

Quote from: 5970
All cards will manage 750mhash average at the least.


Quote from: 6990
Haven't had a single one that wouldn't go to 820 per card, 410 per core. 850 is prob. the max for anyone. Avg. 780 at the least for most people even with bad cooling.

Someone on the forum claims over 900 mhash per card, but I didn't find these results replicable.

Those other cards are spot on

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Mobius
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July 08, 2011, 10:37:20 PM
 #15

I realize that everyone does different things to their gpu and get different megahash values I'm just trying to find the stock megahash of each card(no changes just start up and go), what the average person gets in a overclock, and the record. For an example for the average I put the 5830 at 311 because I'm pretty sure almost any one who overclocks can reach that.

Speed is relative, if you want to run your cards into extreme heat conditions, you can get that speed, if you water cool you can push it, I push my cards until I reach my thermal envelope that I'm comfortable with, If I have a solo card in one rig I have one temp, if I have two in a rig it's tailored to reach optimal hash rates  based on both cards in the case, 3 cards again raises the complexity of which to throttle back for it's effect on other cards in the rig, I have not tried an open frame yet (I just got the parts to experiment with that) Also the software that is used is one of the factors to consider.

Consider the 5830 as per your example- My thermal ceiling is 75c with 2 cards in the rig with an air cooled case I get 288Mh each, My 5870's under the same conditions I get 405Mh ea. I'm testing my 6970 now with an automated script to plot the thermal performance with the GPU Clock, Mem Clock and Voltage variables to find the optimum settings to my satisfaction.

Good luck with your research, it would be interesting to see the results and how they correlate with current miner software and Catalyst Version and SDK Version - as each also has an effect on results, Stock  Cards (some come from the factory already overclocked) and modified cards.
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July 09, 2011, 01:06:49 AM
 #16

Diamond 5870 1GB reference
  • Core 990MHz
  • Memory 355MHz
  • Phoenix 1.50
  • VECTORS BFI_INT WORKSIZE=256 AGGRESSION=11 FASTLOOPS=false -k phatk
  • 438MH/s

HIS 5870 1GB non-reference
  • Core 1020MHz
  • Memory 355MHz
  • Phoenix 1.50
  • VECTORS BFI_INT WORKSIZE=256 AGGRESSION=11 FASTLOOPS=false -k phatk
  • 450MH/s

Speeds at normal clock:  Unknown

Mousepotato
teukon
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July 09, 2011, 10:18:59 PM
 #17

I decided to see how far I could push my good 5850 (a Sapphire HD5850 Xtreme with a Zalman ZF3000A after-market fan cooler, see http://forum.bitcoin.org/index.php?topic=7216.msg345510#msg345510).  I think I've gotten it half-way stable (it's been running for 3 hours now with 0.5% rejects).  I've focused a second rather powerful fan on the VRMs for this run, I can't read the temperature of the VRMs in software.

1.25V - 1110 MHz core - 370MHz RAM - 55*C - 461.1 MH/s.
This is with Linux, Catalyst 11.6, SDK 2.1, phatk, aggression=14, worksize=256.

I've got a screenshot here http://img195.imageshack.us/img195/339/72screenshot2.png.

yetis
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July 09, 2011, 11:51:14 PM
 #18

Here in the german subforum is something that could be of interest for you:

http://forum.bitcoin.org/index.php?topic=18355.0

cul8er.

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July 11, 2011, 01:24:29 AM
 #19

Diamond 5870 1GB reference
  • Core 990MHz
  • Memory 355MHz
  • Phoenix 1.50
  • VECTORS BFI_INT WORKSIZE=256 AGGRESSION=11 FASTLOOPS=false -k phatk
  • 438MH/s

HIS 5870 1GB non-reference
  • Core 1020MHz
  • Memory 355MHz
  • Phoenix 1.50
  • VECTORS BFI_INT WORKSIZE=256 AGGRESSION=11 FASTLOOPS=false -k phatk
  • 450MH/s

Speeds at normal clock:  Unknown

I get 440Mhash/s at 960Mhz Core, so you might want to try and tweak it further.

If this post helped you and you feel generous you know what to do: 1P9tXFy9bVgzrfPGeV7F8np26ZtFdCCWvz
mike678
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July 11, 2011, 02:19:46 AM
 #20

Here in the germand subforum is something that could be of interest for you:

http://forum.bitcoin.org/index.php?topic=18355.0

cul8er.

Thanks I'll look at it more closely at work tomorrow it looks promising.
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