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keystroke (OP)
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September 16, 2012, 07:01:17 AM |
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Hey everyone,
I have a few 5870s running Phoenix 1.7.5 and they each get about 400Mhash/s. I use the phatk kernel. I haven't investigated switching things in awhile, and maybe it is late in the game now that the ASIC revolution is around the corner. But is this an acceptable hashrate? I saw some posts where people were getting 420+Mhash/s. I'm just wondering it its even worth my time at the moment to upgrade & test newer miners & kernels. Besides temperature issues this system has been stable since last spring so I haven't tinkered with it.
They are on Slush's pool using his new Stratum mining protocol and rejects have dropped from .84% to .07% under Stratum.
Thanks!
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"The difference between a castle and a prison is only a question of who holds the keys."
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os2sam
Legendary
 Online
Activity: 3578
Merit: 1090
Think for yourself
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September 17, 2012, 02:22:07 AM |
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Hey everyone,
I have a few 5870s running Phoenix 1.7.5 and they each get about 400Mhash/s. I use the phatk kernel. I haven't investigated switching things in awhile, and maybe it is late in the game now that the ASIC revolution is around the corner. But is this an acceptable hashrate? I saw some posts where people were getting 420+Mhash/s. I'm just wondering it its even worth my time at the moment to upgrade & test newer miners & kernels. Besides temperature issues this system has been stable since last spring so I haven't tinkered with it.
They are on Slush's pool using his new Stratum mining protocol and rejects have dropped from .84% to .07% under Stratum.
Thanks!
Have you checked the Mining Hardware comparison chart? https://en.bitcoin.it/wiki/Mining_hardware_comparisonSam |
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
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keystroke (OP)
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September 17, 2012, 03:13:02 AM |
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Many times but never close enough for the finer points  Thanks! I just got 10Mhash more per card by adding WORKSIZE=128. |
"The difference between a castle and a prison is only a question of who holds the keys."
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ditchmagnet
Newbie
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Activity: 61
Merit: 0
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September 17, 2012, 04:18:01 AM |
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I get my best phoenix results using: -k phatk DEVICE=0 VECTORS2 BFI_INT AGGRESSION=12 WORKSIZE=128 and this modified phatk kernel: https://bitcointalk.org/index.php?topic=25135.0I think I personally was getting better results with the 2011-12-21 version. |
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keystroke (OP)
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September 17, 2012, 04:22:50 AM |
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Thanks! How fast?
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"The difference between a castle and a prison is only a question of who holds the keys."
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crazyates
Legendary
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Activity: 952
Merit: 1000
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September 17, 2012, 04:36:11 AM |
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Depends on what SDK you're using. Do you have 2.1? 2.5? or something newer like 2.6?
2.1 does best with worksize of 128 and a lower memory, like 170. 2.5 does better with worksize of 256, but a memory of 300. 2.6 or newer should not be used on a 5xxx card.
Now I was using CGMiner, but I ran my 5870 with SDK 2.5 at core:980 mem:300 kernel:phatk worksize:256 vectors:2 for ~460MH/s.
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keystroke (OP)
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September 17, 2012, 05:06:36 AM |
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Wow, nice speed! It's been awhile but I think 2.1. How can I tell? Thanks!
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"The difference between a castle and a prison is only a question of who holds the keys."
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os2sam
Legendary
Online
Activity: 3578
Merit: 1090
Think for yourself
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September 17, 2012, 09:55:38 AM |
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Wow, nice speed! It's been awhile but I think 2.1. How can I tell? Thanks!
Uh, it's been a long time since I looked. I use GPU Shark and look in the tools menu. Sam |
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
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keystroke (OP)
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September 17, 2012, 10:35:27 PM |
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Thanks Got some increased hashes so I appreciate the help! |
"The difference between a castle and a prison is only a question of who holds the keys."
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iopq
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September 18, 2012, 05:41:03 AM |
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Depends on what SDK you're using. Do you have 2.1? 2.5? or something newer like 2.6?
2.1 does best with worksize of 128 and a lower memory, like 170. 2.5 does better with worksize of 256, but a memory of 300. 2.6 or newer should not be used on a 5xxx card.
Now I was using CGMiner, but I ran my 5870 with SDK 2.5 at core:980 mem:300 kernel:phatk worksize:256 vectors:2 for ~460MH/s.
not true, 256 + underclocking gives better hashrates even on 2.1 which I am running right now |
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