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GPU options: single 7950 or 2x7850
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Topic: GPU options: single 7950 or 2x7850 (Read 640 times)
wijawara
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GPU options: single 7950 or 2x7850
June 10, 2013, 01:26:23 AM
Last edit: June 10, 2013, 01:46:01 AM by wijawara
#1
Have anyone measured the power consumption for both GPU? Is single 7950 better than 2x7850 in terms of efficiency (MHS/watt)?
Edit: Two 7850s would have much higher number of processing core than a 7950.
litecoin_messiah
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Re: GPU options: single 7950 or 2x7850
June 10, 2013, 01:34:04 AM
#2
i got gigabyte 7950 flashed with f43 firmware and im sure nothing else can beat it by power to khash ratio.
tigusoft
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Re: GPU options: single 7950 or 2x7850
June 10, 2013, 08:53:52 AM
#3
I would take 1x7950. Hashrate lower than 2x7850 but less power needed. One card is easy to configure for mining, lower temperatures are simpler to maintain (especially in closed case).
Moogle
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KUPO!
Re: GPU options: single 7950 or 2x7850
June 10, 2013, 09:30:39 AM
#4
i have a 9750 and am pretty chuffed with it.
haven't flashed it like. might have to be something i look into
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tonyk2005
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Re: GPU options: single 7950 or 2x7850
June 10, 2013, 09:57:35 AM
#5
You've also gotta think ahead, if you decide in the future to expand your mining operation then having one slot already taken up instead of two will be a big bonus. I personally found my 7950 (MSI Twin Frozr iii) easier to undervolt than my 7850 (Radeon) so I can drop the power consumption of that card even more.
wijawara
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Re: GPU options: single 7950 or 2x7850
June 21, 2013, 01:51:56 AM
#6
Checked with friend's rigs. It looked like heat output is greater in 2x7850 than a single 7950. But a single 7950 has slightly lower hrate.
~660MHS vs ~580MHS
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