Topic: Need help making or finding a list of megahash speeds (Read 4115 times)

I honestly haven't been following the latest best speeds for the 5850 and 70 because they are constantly changing. The only thing really required for the list would be that it could run stable for long periods of time.

Did you decide that the claimed rates of 461 MH/s for a 5850 and 501 MH/s for a 5870 don't qualify for inclusion in your list or are you just unaware of them?  If the former, what are the qualifying conditions?

*crickets* lol alright I guess I'll just keep it to myself. If any one is ever interested let me know

Ok I'm almost done with a program where it calculates the megahash per minimum server cost of any given card. The program uses a text file called data.txt that stores information in this format:
#5830
256
311
345

#5850
280
370
430

#5870
313
440
490

or

card
average megahash no overclock
normal overclock
highest possible overclock

I also added a feature where it stores the best five card you have put through the program in a file called records.txt. It is stored in this format:
1.526452732-5870-190.0
1.49339735894-5830-110.0
1.40550807217-5850-165.0
1.36254107338-5830-130.0

or

megahash ratio - card - cost

All that is required by the user is the card they want to check and the price of the card and it will display this in command prompt. (btw its a 5830 @ $110)

The bare minimum server:
$30      -cpu
$10      -ram
$150    -psu
$140    -mobo
$15      -hdd
$48      -4x(PCIe x16 Extender Cable)
$440.0 -4x5830
total=$833.0
(311*4)/833.0=1.49339735894 megahash per dollar

I figured that having two different files one for the megahash per card and one for the records allows for the user to easily customize if something changes. My question to you guys is would anyone actually be interested if I released this publicly and if so is there any features you might want me to include or change?

Thanks for your input

So I just used google to translate E-VOLUTION post in the german sub forum (http://forum.bitcoin.org/index.php?topic=18355.0)

This is hopefully the english version of the post: http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=de&tl=en&u=http%3A%2F%2Fforum.bitcoin.org%2Findex.php%3Ftopic%3D18355.0

It seems that his max megahash per each card is roughly the average overclock now so I will be using those numbers that way in my list.

I'm sure you've seen it but this topic has some very good 5870 rates.  The highest I've seen there is 490 MH/s.

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

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

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

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

cul8er.

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.

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

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.

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.

All cards will manage 750mhash average at the least.


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

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.

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?

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.

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

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.

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.

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.