780: 500 kHash/s give or take @ 250 W TDP
660 Ti: 300 kHash/s give or take @ 150 W TDP
750 Ti: 250 kHash/s give or take @ 60 W TDP
beats AMD in performance per Watt hands down.
Christian
I'm not so sure. "Official" TDP is worthless on cards marketed as "gaming OC editions". In mining, one undervolts cards and needs density. People with 7950s (a 200+W TDP card) are undervolting like mad and still get 700 Kh/s. If they are pulling 160W, are equivalent to those real 250 Kh/s @ 60W. Future 8 series will be very interesting though... |
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I would appreciate any tips on how to get around this. I'm kind of stumped as to why the direct pcie 16x ports are slowing down my hashrates... maybe the BIOS is clocking them down to save power? I haven't seen any setting like this when looking though. Is there some way that Windows 7 can slow the pcie bus?
Yes there is such a power option, called "PCI Express -> Link State Power Management". There are also some settings like PCI-e latency, PCI-e bus frequency on the Bios. Once someone reported higher hashrate at 95 Mhz PCI-e than 100. Did you disable sound, firewire, etc... on the BIOS and unnecessary drivers on Windows device manager? Scrypt is voodoo anyway...  |
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I think Darkcoin is a good buy right now, it is also a good LONG term hold for the fundamentals investor, i've already replaced 50% of ANONCOINS that i held with DarkCoins.
DarkCoin has all the features AnonCoin has plus so much more, with an active development team they have so many stuff in the works.
AnonCoin development unfortunately is dead.
The price already went up 100% since yesterday when i advise people to buy them.
Crypto-currencies aren't forex, options, ETFs... This isn't a "trader's" world. When you hype a coin, miners flock to it. They mine it and dump it in less than 24h, leading to precisely the opposite effect you're trying to promote! Raising difficulty in no time and sucking the life out of it. |
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I just found out that my card is not voltage locked so I can change it in TRIXX. Current voltage is 1225. What voltage should I set? (clocks should stay the same right?)
BIOS version is 015.040.000.001
Nice! Start at 1100 mV and go down to ~1000, in steps of 10 mV, for that 1055 Mhz (and some safety). It will lock up, artifact, throw HW errors or appear SICK/DEAD somewhere in the middle if it gets too low. Just pick the lowest voltage you can get it stable and keep looking at those VRM temperatures. Mine can reach 1100+ Mhz at 1087 mV. Other as low as 1050 mV. so if I go too low with voltage and graphic crashes when I restart everything should go back to normal? I guess if I ever decide to sell or RMA the card I can switch to factory voltage and no one will ever know I have changed it? what is your hashrate per card and what are your temps? are your cards placed into case? When you restart it is back to normal, you need Trixx to reapply voltage. I never saw a card losing warranty by undervolting. When I mine scrypt, my cards are below 63ºC (I'm sorry I don't remember exactly atm lol), except one. They are in an attic with abundant air circulation and 2 large fans. I have 2 cards plugged on each motherboard (R9-270 + 7870XT, R9-270 + 6950) and others on risers (7970 and 280x's). |
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I just found out that my card is not voltage locked so I can change it in TRIXX. Current voltage is 1225. What voltage should I set? (clocks should stay the same right?)
BIOS version is 015.040.000.001
Nice! Start at 1100 mV and go down to ~1000, in steps of 10 mV, for that 1055 Mhz (and some safety). It will lock up, artifact, throw HW errors or appear SICK/DEAD somewhere in the middle if it gets too low. Just pick the lowest voltage you can get it stable and keep looking at those VRM temperatures. Mine can reach 1100+ Mhz at 1087 mV. Other as low as 1050 mV. |
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Someone wrote (by accident) that "God" created the world in 6 days because he didn't know better, and 3500 later after knowing a bit more about the Universe, we're still discussing what that dude wrote ?!
Who created God? What is God made of?
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yeah I figured...but I doubt it will bring down the temps that much. Also I'm not sure if I will lose warranty when I'm undervolting the card.
hehe Well, the prospect of losing warranty is indeed a problem. Perhaps you should return it. Are MSI Afterburner or Sapphire Trixx unable to lower the voltage? Consider mining non-scrypt coins with it: MemoryCoin, Protoshares, Vertcoin, Maxcoin, Darkcoin, Metiscoin and a few others. |
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Seems to have the same BIOS problem some Sapphire cards have with thermal throttling. XFX cards are generally considered to be the one of the worst for mining.
I know...I bought it because it was the only one they had in stock. I know that xfx models in some cases throttle because of higher temperature(over 75-80C) but only 65C??? I didnt see that coming. Check VRM temps. My 280x XFX has 67C with gpu engine 1040, 737 khash, anything higher begin throttling, because VRM temps go till 114C.  everything looks exactly like you said. so we are basically screwed right? there is no way out of this?  |
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Look, they may have actually stolen coins, I can't vouch or defend people I don't know. However note that if a fork happens, you DO risk losing them. The risk exists, and I lost GLD that was left unconfirmed for ~2 months! Since that happened, I never leave coins at exchanges, I never buy, mine or store value on unstable, poorly supported coins.
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Yes, I see a problem with the centralization and holding of private key. I see another with burning 1.5 million $US.
It's none of my business, I don't have anything else to say itt. I'm just surprised/shocked...
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You guys threw 2000 BTC into an unrecoverable address, because ...?
...deflating BTC makes it worth more.  Heh! Good Lord. Couldn't those have been given to Red Cross, Food banks and so on? Top idea. Donate your BTCs to them Answer the question. |
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Open a cmd.exe command line and enter:
setx GPU_MAX_ALLOC_PERCENT 100
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You guys threw 2000 BTC into an unrecoverable address, because ...?
...deflating BTC makes it worth more. Heh! Good Lord. Couldn't those have been given to Red Cross, Food banks and so on? |
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You guys threw 2000 BTC into an unrecoverable address, because ...?
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Ah i am talking about GPU mining not CPU.
Besides allowing more cores to be used i did not know you could control how many CPU cycles are used for Mining.. Ill DL process explorer and check it out.
I know you are talking about GPU mining. cgminer runs on the CPU, and validates in x86 the results of the GPUs work, on top of networking, fetching work, generating local work and so on, right? So does the OS, interrupts, network drivers, video drivers, cgwatcher, vnc, etc... My point is not the # cpu cycles used, is if a Sempron 145 is good enough to keep all your GPUs mining at max efficiency and profit. It is not necessary for a setup to use 100% of CPU for some efficiency being lost, depends a bit more on time slice granularity |
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Thanks for the reply!
But, it doesn't invalidate the possibility that the particular pool you're using, is scamming! You should always check under "transactions" and have some idea how many confirmations does a pool or coin needs to make them appear in your balance. |
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Bitcoin, Litecoin (maybe??) and some that have PoS like Hobonickels. Even Nxt if the so called community manages to pull their heads out of the asses and stop their "us vs everyone else" stance. Their very different software is an extra pain to manage, though. Stay away from speculative/hyped like Maxcoin or Doge. Those are great for flash trades, not my picks for long term storage. Be careful with scrypt coins (mainly with low network hash) which can be victims of ASICs, most-profit pools, 51% attacks, be unlisted from exchanges, etc... they're dumped frequently and globally I see them going down slowly. In short, it's not easy to give you a definitive answer, because I'm interested in this topic and have no damn clue what to do myself Oh, and stop spamming your favorites or the ones you hold, disregarding what the OP asked.... |
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Are you mining at the same pool and coin? That 1085 engine may be too high for some coins/pools/block times.
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Ok, fine, that's just for precaution. Of course yours could be fine, however someone that reads this, ends up with the impression that theirs (other mfg, other coolers, other components, different ambient temperature, less care, low fan speed, etc...) will too.
If you want to debate the point, before, just read other threads and other forums with people toasting their cards...
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