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Topic: Unofficial "High MHash"/"Best Settings" GPU Comparision Thread - page 4. (Read 30211 times)

legendary
Activity: 1512
Merit: 1036
Card Manufacturer: AMD
Card Model Number: HD 5870
Card OEM: ATI
MHash per Second: 458MHS
Core Clock: 1010MHZ
Memory Clock: 294MHZ
Average Operating Temperature: 62C
Ambient Temperature: 22C
Fan Speed: 50%
Host OS: Bamt 0.5
Driver Version: 11.6 and SDK 2.4
Mining Program: Phoenix
Command Line Flags/GUIminer Settings:  BFI_INT VECTORS, FASTLOOP=false AGGRESSION=10
Watts Drawn While Mining: Unknown
Other Information: kernel  phatk2, core voltage 1.7
Record stable uptime at current settings 8d (and counting).

That can't be your GPU voltage, or it would be a smoky pile of smoke. Plus, see edited original post and above for new GPU MHz to benchmark at, so we can measure who's the best at tweaking their mining software.
hero member
Activity: 910
Merit: 1000
Items flashing here available at btctrinkets.com
Card Manufacturer: AMD
Card Model Number: HD 5870
Card OEM: ATI
MHash per Second: 458MHS
Core Clock: 1010MHZ
Memory Clock: 294MHZ
Average Operating Temperature: 62C
Ambient Temperature: 22C
Fan Speed: 50%
Host OS: Bamt 0.5
Driver Version: 11.6 and SDK 2.4
Mining Program: Phoenix
Command Line Flags/GUIminer Settings:  BFI_INT VECTORS, FASTLOOP=false AGGRESSION=10
Watts Drawn While Mining: Unknown
Other Information: kernel  phatk2, core voltage 1.7
Record stable uptime at current settings 8d (and counting).
sr. member
Activity: 437
Merit: 250
Just wanted to say the 5970 at 775mhz core 300 mhz memory and 1.02v works well, thanks for the suggestion, sapphire 5850 runs at these clocks fine as well. This definitely looks like this may be my summer clocks. Am pulling 911 watts right now with two 5970 and two 5850. 2102mhash using bamt
legendary
Activity: 1512
Merit: 1036
Alright. Main post has been updated, with new regulations limiting core clock to 100 MHz or 20%, whichever is lower, above reference stock. That seemed a fair way to limit clocks that could be applied to any card, wouldn't allow insane overclocks, and requires no judgement on my part. As always, suggestions, corrections, etc. are always welcome.

The smaller of +100Mhz or +20% is +100Mhz in all cases, you would need core clock under 500MHz for the 20% rule to take effect. "Running stable for 24 hrs" etc doesn't matter because these are easy overclocks, you just want to run the miner until it has results at least xxx.xMhash/s stable accuracy.

Note that running a lower GPU core overclock for benchmarking will also affect the "sweet spot" for memory underclock on 2.1-2.5 SDKs. My own research shows that changing a 5770 from 1000->850MHz will change the best memory speed from 295MHz to 270Mhz. This is important to note both for this competition, and for trying these results on your own miner when you want to go back to maximum overclock.

Here are the official AMD stock core clocks of common mining GPUs, and their "competition" overclock of +100Mhz (which is significantly lower than typically attainable, but should be achievable by all [except perhaps 7970 @ 1025MHz]):

ModelShadersStock MHzOverclock
5770800850950
58301120800900
58501440725825
58701600850950
59703200725825
ModelShadersStockOverclock
6850960775875
687011209001000
69501408800900
69701536880980
69903072830930
ModelShadersStockOverclock
79501792800900
797020489251025

(Note the table above highlights the numbering sham that is the 6xxx series; a 5830 gets about the same hashrate as a 6870 when pushed to the similar max overclock, as they have the same number of vertex shader cores.)
hero member
Activity: 560
Merit: 500
Ad astra.
Alright. Main post has been updated, with new regulations limiting core clock to 100 MHz or 20%, whichever is lower, above reference stock. That seemed a fair way to limit clocks that could be applied to any card, wouldn't allow insane overclocks, and requires no judgement on my part. As always, suggestions, corrections, etc. are always welcome.
hero member
Activity: 560
Merit: 500
Ad astra.
This thread is for finding the fastest software miner settings.

One may overclock more than another, but the competition is to find the fastest hashing miner at a particular overclock.
Absolutely. That's why I chose the term "skill". It will require effort, gong, over time, fu, to see what you can achieve. Cheesy



Sorry I haven't updated this thread in a while, I was taking a few days break to clear my head. I'll update it momentarily.

Sounds like two different threads are needed. One for software settings, and one for a general overclocking guide. I'm no overclocking expert, but I probably could write a guide like that if no one else steps up. Thoughts?
full member
Activity: 196
Merit: 100
Web Dev, Db Admin, Computer Technician
This thread is for finding the fastest software miner settings.

One may overclock more than another, but the competition is to find the fastest hashing miner at a particular overclock.
Absolutely. That's why I chose the term "skill". It will require effort, gong, over time, fu, to see what you can achieve. Cheesy

legendary
Activity: 1512
Merit: 1036
Thanks for making this thread BinaryMage. This is exactly what I was looking for, https://bitcointalksearch.org/topic/m.743905 , results that could be trusted to teach n00b5 like me some OC 5k1llz. Cheesy
I don't trust that wiki, if there are too few results it's impossible for new people, like when I first started reading, to determine credible results. Instead of teaching skills they could be teaching kills, which is not so good. At least someone with a little more knowledge has taken on the task for safe guiding ideas.

Not relevant.

Each GPU performs differently.

One may do 1000 without voltage increase and another ( of same model ) might only do 800 on stock volts ...

YMMV
Not relevant.

This thread is for finding the fastest software miner settings.

One may overclock more than another, but the competition is to find the fastest hashing miner at a particular overclock.
hero member
Activity: 518
Merit: 500
Thanks for making this thread BinaryMage. This is exactly what I was looking for, https://bitcointalksearch.org/topic/m.743905 , results that could be trusted to teach n00b5 like me some OC 5k1llz. Cheesy
I don't trust that wiki, if there are too few results it's impossible for new people, like when I first started reading, to determine credible results. Instead of teaching skills they could be teaching kills, which is not so good. At least someone with a little more knowledge has taken on the task for safe guiding ideas.

Not relevant.

Each GPU performs differently.

One may do 1000 without voltage increase and another ( of same model ) might only do 800 on stock volts ...

YMMV
full member
Activity: 196
Merit: 100
Web Dev, Db Admin, Computer Technician
Thanks for making this thread BinaryMage. This is exactly what I was looking for, https://bitcointalksearch.org/topic/m.743905 , results that could be trusted to teach n00b5 like me some OC 5k1llz. Cheesy
I don't trust that wiki, if there are too few results it's impossible for new people, like when I first started reading, to determine credible results. Instead of teaching skills they could be teaching kills, which is not so good. At least someone with a little more knowledge has taken on the task for safe guiding ideas.
Vbs
hero member
Activity: 504
Merit: 500
Card Manufacturer: Sapphire
Card Model Number: 5850 (Refurbished)
Card OEM: ATI Reference
MHash per Second: 400
Core Clock: 970MHz
Memory Clock: 150MHz
Voltage: stock
Average Operating Temperature: 70ºC
Ambient Temperature: 18~20ºC
Fan Speed: 56-59%
Host OS: Win7 x64
Driver Version: 12.1
SDK Runtime Version: 2.5.793.1 (from driver 11.11)
Mining Program: cgminer 2.3.1
Command Line Flags/GUIminer Settings: phatk kernel, vectors 2, worksize 256, intensity 9

Card Manufacturer: Sapphire
Card Model Number: 5850 (Refurbished)
Card OEM: ATI Reference
MHash per Second: 404
Core Clock: 980MHz
Memory Clock: 150MHz
Voltage: stock
Average Operating Temperature: 68ºC
Ambient Temperature: 18~20ºC
Fan Speed: 55%
Host OS: Win7 x64
Driver Version: 12.1
SDK Runtime Version: 2.5.793.1 (from driver 11.11)
Mining Program: cgminer 2.3.1
Command Line Flags/GUIminer Settings: phatk kernel, vectors 2, worksize 256, intensity 9
hero member
Activity: 560
Merit: 500
Ad astra.
Instead of limiting overclock, what if I limit temperature and fan speed? After all, overclocking itself doesn't kill your card; overvolting and/or running at high temperatures does. (And running at high fan will kill the fan quickly) "Stock speed" varies card-to-card, and looking at the wiki page, the average overclock is extremely variant. How does 70C and 60% fan speed (in addition to the already-implemented stock voltage) sound for limitations?
That will only show variations in the product itself and make for completely non-replicable results. Two cards out of the box with serial number right next to each other might run 5C different due to manufacturing and assembly differences. One user might have an open frame rig, one might put it in his Dell with only one system fan. Those two cards, though, will get identical mhash results if run with the same software settings at the same clocks.

Fair point, strike that. I suppose I'll look over the wiki and see what I come up with.
legendary
Activity: 1512
Merit: 1036
Instead of limiting overclock, what if I limit temperature and fan speed? After all, overclocking itself doesn't kill your card; overvolting and/or running at high temperatures does. (And running at high fan will kill the fan quickly) "Stock speed" varies card-to-card, and looking at the wiki page, the average overclock is extremely variant. How does 70C and 60% fan speed (in addition to the already-implemented stock voltage) sound for limitations?
That will only show variations in the product itself and make for completely non-replicable results. Two cards out of the box with serial number right next to each other might run 5C different due to manufacturing and assembly differences. One user might have an open frame rig, one might put it in his Dell with only one system fan. Those two cards, though, will get identical mhash results if run with the same software settings at the same clocks.
hero member
Activity: 560
Merit: 500
Ad astra.
Looks like the 5830 info only got half-updated in the original post.

The only reason I suggest some overclock, is that this affects ideal memory speed; ideal memory clock will follow core GPU clock in a non-linear way. ATI cards can typically go from stock 800MHz to 950+MHz given cooling and voltage. The fans are programmed to be quiet to mask their huge power draw, and this let the chips go over 90C. You might look at https://en.bitcoin.it/wiki/Mining_hardware_comparison, ignore the stock speed posts, and take the smallest or second-smallest overclock that a card has rounded to a nice number.

Fixed, thanks for pointing that out.

Instead of limiting overclock, what if I limit temperature and fan speed? After all, overclocking itself doesn't kill your card; overvolting and/or running at high temperatures does. (And running at high fan will kill the fan quickly) "Stock speed" varies card-to-card, and looking at the wiki page, the average overclock is extremely variant. How does 70C and 60% fan speed (in addition to the already-implemented stock voltage) sound for limitations?

legendary
Activity: 1512
Merit: 1036
Looks like the 5830 info only got half-updated in the original post.

The only reason I suggest some overclock, is that this affects ideal memory speed; ideal memory clock will follow core GPU clock in a non-linear way. ATI cards can typically go from stock 800MHz to 950+MHz given cooling and voltage. The fans are programmed to be quiet to mask their huge power draw, and this let the chips go over 90C. You might look at https://en.bitcoin.it/wiki/Mining_hardware_comparison, ignore the stock speed posts, and take the smallest or second-smallest overclock that a card has rounded to a nice number.
hero member
Activity: 560
Merit: 500
Ad astra.
What should be done here is specify a typically obtainable GPU core overclock that everybody can use for a particular card, then compare who can get the maximum Mhash/s out of that card at that overclock. This will help users discover maximum performance through comparing software setup, rather than becoming that overclock bragging contest. OS/bitness/motherboard/CPU are all largely inconsequential, and only need to be recorded for posterity.

The most important things to accurately note:
  • GPU model (+memory size & make, manufacturer part #)
  • Driver software version, OpenCL/SDK if not the one included with driver
  • Memory clock MHz
  • Miner software & version
  • miner kernel & version
  • miner kernel parameters (worksize, vector size, other settings)

I agree, that would be ideal. Unfortunately, I doubt there is any consensus on what a "typically obtainable" core overclock is, and I do not personally know enough to determine one, so I decided to leave it to the judgement of the submitter. If there is a resource I could use to obtain "reasonable overclocks", though, please share it; I would be glad to change the guidelines as such.
legendary
Activity: 1512
Merit: 1036
What should be done here is specify a typically obtainable GPU core overclock that everybody can use for a particular card, then compare who can get the maximum Mhash/s out of that card at that overclock. This will help users discover maximum performance through comparing software setup, rather than becoming that overclock bragging contest. OS/bitness/motherboard/CPU are all largely inconsequential, and only need to be recorded for posterity.

The most important things to accurately note:
  • GPU model (+memory size & make, manufacturer part #)
  • Driver software version, OpenCL/SDK if not the one included with driver
  • Memory clock MHz
  • Miner software & version
  • miner kernel & version
  • miner kernel parameters (worksize, vector size, other settings)

Here's mine to toast the above speeds, (I am currently cranking 350 mhash/s out of this 5830 at an overclock most won't obtain)

GPU Manufacturer: ATI
GPU Model Number: Radeon HD 5830
Card Model Number: 100297-2L
Card OEM: Sapphire
MHash per Second: 341.60
Core Clock: 1050MHz
Memory Clock: 380MHz
Average Operating Temperature: 71C
Ambient Temperature: 21C
Fan Speed: 80%
Host OS: XP SP3
Driver Version: ATI Catalyst 11.11
Mining Program: phoenix 1.7.4 win32 exe, d3m0n1q_733rz phatk2 mod
Kernel Parameters: VECTORS AGGRESSION=12 FASTLOOP=False WORKSIZE=256
Other Information 1.195V core, 200mm case fan
Other Information (342.38Mhash/s with SDK2.1 - 100% CPU bug)

GPU Manufacturer: ATI
GPU Model Number: Radeon HD 5770
Card Model Number: HD-577A-ZNFC
Card OEM: XFX
MHash per Second: 230.65
Core Clock: 990MHz
Memory Clock: 294MHz
Average Operating Temperature: 78C
Ambient Temperature: 22C
Fan Speed: 80%
Host OS: Win7 x32
Driver Version: ATI Catalyst 11.6/StreamSDK 2.1/OpenCL.dll from 2.2
Mining Program: phoenix 1.7.4 src/py2.7.2/pyOpenCL 0.98, d3m0n1q_733rz phatk2 mod
Kernel Parameters: VECTORS AGGRESSION=12 FASTLOOP=False WORKSIZE=256
Other Information 1.275V core
newbie
Activity: 14
Merit: 0
Card Manufacturer: ATI
Card Model Number: HD 6870
Card OEM: Diamond (Reference)
MHash per Second: 322.3
Core Clock: 1000
Memory Clock: 300
Average Operating Temperature: 58 C
Ambient Temperature: 65F
Fan Speed: 45%
Host OS: Windows 7
Driver Version: 11.11 SDK 2.5
Mining Program: guiminer
Command Line Flags/GUIminer Settings: -v -w128 BFI_INT
sr. member
Activity: 462
Merit: 250
I heart thebaron
Updated. Thanks everyone!
No problem....we do what we can Wink
Hopefully my pathetic mix-up of all different cards helped.... 'cause that's what happens when you start expanding too late and all the good cards are sold out all of the time...LOL

Also, small CORRECTION on the machine below.

I initially reported it as CAT 12.1......when it is in fact CAT 11.12
Sorry for the misreporting. I fixed my multi-card post. Correct values also below:

.........................................................

Card Manufacturer: ATI
Card Model Number: 5830 Extreme 1GB
Card OEM: Sapphire
MHash per Second: 320 MH/s
Core Clock: 975 Mhz
Memory Clock: 180 Mhz
Average Operating Temperature: 66C
Ambient Temperature: 19C
Fan Speed: 45%
Host OS: Win7 x64
Driver Version: 11.12 CAT, 2.1 SDK
Mining Program: CGMiner 2.2.7
Command Line Flags/GUIminer Settings: default, I-8
Other Information: OC @ Stock Voltage, 1.163V

.........................................................
hero member
Activity: 560
Merit: 500
Ad astra.
Updated. Thanks everyone!
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