xzion (OP)
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May 06, 2012, 06:21:15 AM |
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Looking into getting a new card for gaming and mining, thinking either a 7950 or a 7870. I saw in another thread someone was getting 430MH/s with a 7870 @ 1100MHz, haven't been able to find any real results from a 7950 though. If you've got one some info would be great, keen to see what clocks/speeds they can get.
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Tips: 1xzionJBueq1AkPSmexA7suWkztAkNwSs
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Dyaheon
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May 06, 2012, 01:17:25 PM |
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I don't actually have one, but it has 87.5% of 7970s shaders, so it also has 87.5% of it's speed at the same clocks. It has pretty low stock clock of 800MHz, but should clock to 1000-1100+, probably closer to 1100.
So... at 7970's stock clock of 925MHz a 7950 would get about 490MH/s, clocked to 1.1GHz would give about 580MH/s, or slightly above a stock 7970.
I recommend going with a 7950, it has much more overclocking headroom than a 7870 does, and it's not much more expensive anymore.
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cletus815
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May 06, 2012, 03:05:25 PM |
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My two 7950's get 510 each clocked at 1010.
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xzion (OP)
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May 07, 2012, 02:17:15 AM |
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thanks a bunch cletus!
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GenTarkin
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June 13, 2012, 09:40:08 PM |
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My two 7950's get 510 each clocked at 1010.
Whats the power consumption on those? @ that setup. |
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cletus815
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June 13, 2012, 11:05:20 PM |
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My two 7950's get 510 each clocked at 1010.
Whats the power consumption on those? @ that setup. About 169 watts each. That was measured by taking the 409 watts I measured at the wall, subtracting 72 for the system, and dividing by 2. |
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AndrewBUD
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June 14, 2012, 01:38:54 AM |
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a 7950 for me get's between 530-560mhash @ 1080mhz....
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GenTarkin
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June 14, 2012, 04:45:32 AM |
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My two 7950's get 510 each clocked at 1010.
Whats the power consumption on those? @ that setup. About 169 watts each. That was measured by taking the 409 watts I measured at the wall, subtracting 72 for the system, and dividing by 2. Minus the PSU inefficiency... Either way even at 169, those are pretty efficient cards. hrm... |
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aqrulesms
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June 14, 2012, 05:38:53 AM |
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My two 7950's get 510 each clocked at 1010.
Whats the power consumption on those? @ that setup. About 169 watts each. That was measured by taking the 409 watts I measured at the wall, subtracting 72 for the system, and dividing by 2. Minus the PSU inefficiency... Either way even at 169, those are pretty efficient cards. hrm... That's the beauty of the new architecture. Quite comparable to FPGAs if you ask me, and low resale value risk.  |
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Dexter770221
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June 14, 2012, 06:06:12 AM |
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500MH/150W != 500MH/20W. I wouldn't say it's comparable. About resale value you right.
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Serenata
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June 14, 2012, 07:30:47 AM |
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500MH/150W != 500MH/20W. I wouldn't say it's comparable. About resale value you right.
Agree. With a price per KWh 0.08 EUR the electricity bill will be: 1.152 EUR per month for the FPGA 9.734 EUR per month for the GPU The only reason I use GPUs (yet) is their resale value. |
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AndrewBUD
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June 14, 2012, 05:39:51 PM |
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Works out well when Power is taken care of...... GPU's are better all around.. Cost me less for more Mhash  If your paying power sure FPGA's are better..... but will be hard to sell if BTC drops |
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ZPK
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June 14, 2012, 05:47:54 PM |
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i doesn't have, but know results in mhs , power in watt do not know.
1200mhz - 630mhash
1250mhz - 668mhash
1260mhz - 680mhash
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Novacoin POS mining only now
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GenTarkin
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June 15, 2012, 12:57:47 AM |
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thats quite incredible, the 680mhs approaches 5970 speeds
Wonder how power comparison is though...
Thats on a 7950 too?
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-ck
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Ruu \o/
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June 15, 2012, 01:28:50 AM |
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Successfully hitting 1260 would be extraordinary and would require water cooling and probably overvolting.
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Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
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AndrewBUD
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June 15, 2012, 01:34:48 AM |
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Overvolting yes.. I doubt water cooling though.. If 1100 is achievable on stock settings..
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365 |
TM | | | |
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cmg5461
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June 21, 2012, 11:11:43 AM |
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Overvolting yes.. I doubt water cooling though.. If 1100 is achievable on stock settings..
You would want it watercooled though.. High temps = more leakage = more power drawn. although why watercool a 7950 when you can w/c a 7970 (or 2)  |
If I've helped: 1CmguJhwW4sbtSMFsyaafikJ8jhYS61quz
Sold: 5850 to lepenguin. Quick, easy and trustworthy.
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