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6950 vs 5870 - Power Efficiency and Raw Output
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Topic: 6950 vs 5870 - Power Efficiency and Raw Output (Read 5867 times)
eleuthria
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6950 vs 5870 - Power Efficiency and Raw Output
April 21, 2011, 05:08:06 PM
#1
Well, NewEgg just ran out of the 5870 cards I had been buying for $219. I was wondering if anybody had some performance data/comparisons between a 6950 and 5870 card, both in terms of raw mHash/sec, and also mHash/watt. I've found that XFX 6950 cards could be bought for $3 more than I was paying for the 5870s, due to the lack of sales tax from the different vendor.
RIP BTC Guild, April 2011 - June 2015
JWU42
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 21, 2011, 08:59:02 PM
Last edit: April 21, 2011, 09:34:50 PM by JWU42
#2
I have a 6950 2GB model and when OC'd can run comparable to a 5870.
At 940 Core it can push 360 Mh/s. I have found 935 to be the sweet spot and it hits ~355 Mh/s. Estimated power is ~200 watts and it is likely lower. Need to plug in the kill-a-watt again. I have memory down to 700 Mhz and Voltage bumped by 15 mV
This is with 11.4 pre drivers using poclbm with -v -w128 -f2
EDIT : Yes, I have a shader unlocked 6950. Who doesn't???
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zoro
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 21, 2011, 09:11:45 PM
#3
6970 with 940/350 gives 362Mh.
perhaps you have 6970 bios to the card
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allinvain
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 22, 2011, 04:54:33 AM
#4
OP, have you considered hunting for used 5870s. I think these cards represent the best deal out there for miners. There are tons of gamers who are now upgrading to the radeon 6000 series and thus dropping the 5000 series cards like hot potatoes.
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zoro
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 22, 2011, 05:41:51 AM
#5
i totally agree with allinvain!
58xx series have more stream processors than 69xx and i think they are more efficient for opencl purposes
moreover they are less expensive now days and this makes them the perfect mates
Jwu42, not everyone can unlock their 6950 unless it is a reference design and have 2GB of DDR5
"killer app" of BTC = MasterCoin
https://bitcointalk.org/index.php?topic=265488.0Mastercoin(A
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JWU42
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 22, 2011, 02:35:42 PM
#6
Zoro - Understood - the incentive is to get the ref design 2GB model so you can shader unlock. Not sure why you would get the 1GB or non-ref version if BTC and gameplay are your interests. I game on a 2560x1440 display and the 2GB makes a diff...
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OUTSIDE
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 22, 2011, 03:57:39 PM
#7
Quote from: zoro on April 21, 2011, 09:11:45 PM
6970 with 940/350 gives 362Mh.
perhaps you have 6970 bios to the card
How you do 362? I have the same at 1000/150(300) and does 330MH/s
Thx!
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luffy
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 22, 2011, 06:57:39 PM
#8
are you talking about 6950 or 6970 (unlocked 6950)?
if you are using poclbm try the keys -f1 -v -w128 (or -w64)
also, remember to keep memory clocks between 340 and 400, i found those values to give more MH/s
chungenhung
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 23, 2011, 06:20:51 AM
#9
Quote from: luffy on April 22, 2011, 06:57:39 PM
are you talking about 6950 or 6970 (unlocked 6950)?
if you are using poclbm try the keys -f1 -v -w128 (or -w64)
also, remember to keep memory clocks between 340 and 400, i found those values to give more MH/s
How do you get memory clock to 400? The lowest setting on AMD CCC only goes down to 625MHz.
OUTSIDE
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 23, 2011, 07:37:27 AM
#10
Quote from: luffy on April 22, 2011, 06:57:39 PM
are you talking about 6950 or 6970 (unlocked 6950)?
if you are using poclbm try the keys -f1 -v -w128 (or -w64)
also, remember to keep memory clocks between 340 and 400, i found those values to give more MH/s
I put "-v" and push to 383MH/s! I don't remember to put in the 6970 (I put only in the 5850 lol)
Thx!
allinvain
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Re: 6950 vs 5870 - Power Efficiency and Raw Output
April 23, 2011, 03:12:14 PM
#11
Quote from: chungenhung on April 23, 2011, 06:20:51 AM
Quote from: luffy on April 22, 2011, 06:57:39 PM
are you talking about 6950 or 6970 (unlocked 6950)?
if you are using poclbm try the keys -f1 -v -w128 (or -w64)
also, remember to keep memory clocks between 340 and 400, i found those values to give more MH/s
How do you get memory clock to 400? The lowest setting on AMD CCC only goes down to 625MHz.
You gotta use MSI Afterburner
See this thread:
http://bitcointalk.org/index.php?topic=4292.0
Binance - where I trade. Funds are SAFU!
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