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Author Topic: 5770 efficiency  (Read 766 times)
iNs4nePT
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January 30, 2012, 08:11:11 PM
 #1

Considering a super-cheap mining rig, i've came across the 5770.

However, the page at https://en.bitcoin.it/wiki/Mining_hardware_comparison seems awkward:

ModelPriceAvg. Mhash/sMhash/J
5770 $136    212.83       1.45 

if the 5770 has a MAX tdp of around 108W, shouldn't that be more like 2.0 MHash/J?

OC'ing 3 of these could get about 700MH/s with around 400W total load: somewhat efficient and cheap Smiley


The reason for the 5770s, is mainly for how easy it is to buy and sell them used, making for a less risky investment than a high-end card...


Comments welcome



1x HD6850 @ 250MH/s - Like digging a tunnel with a spoon (:
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conspirosphere.tk
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January 30, 2012, 08:35:24 PM
 #2

I think that to get 212 Mhs with a 5770 it must be already well overclocked.
One of my rigs has 2 5750@870/300 hashing at 172 mhs each, running fine 24/7 with an old 500W PSU.
I found them at 50 euros each used (one on ebay included delivery).

iNs4nePT
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January 30, 2012, 09:45:08 PM
 #3

I think that to get 212 Mhs with a 5770 it must be already well overclocked.

Silly me, you're right. I've looked closely at the charts again, about 180MH/s seems to be the default for these cards.

Still, that would mean 1.8MH/J at stock, much better than 1.45.

1x HD6850 @ 250MH/s - Like digging a tunnel with a spoon (:
Under 1BTC: 1Ns4nePtxtRiRmnztqgoqdJqjzvETCJzi5
electronique
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February 03, 2012, 05:57:23 PM
 #4

I have a 5750 (which is 5770 but with insignificant lower speed frequencies) and I'm doing right now 54 Mhash/s. I'm in the BTC Guild, using GUIMiner.


I thought I would have at least 150 Mhash/s... what's the problem?
conspirosphere.tk
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February 03, 2012, 06:07:09 PM
 #5

I have a 5750 (which is 5770 but with insignificant lower speed frequencies) and I'm doing right now 54 Mhash/s. I'm in the BTC Guild, using GUIMiner.


I thought I would have at least 150 Mhash/s... what's the problem?

S/t is way out of wack. You should get triple speed at stock clock. Are you watching videos or playing all the time? If not, try with Phoenix or reinstall the drivers.

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February 03, 2012, 09:18:15 PM
 #6

Thanks for answering!  Grin

I have updated my drivers and now it's working @ 135 Mhash/s. Also, I have added at extra flags this line: -v -w128
ForceField
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February 04, 2012, 06:54:19 PM
 #7

Consider the single-slot 5770. It runs cooler, more efficiently, and has XFX's Lifetime Warranty. See my sig, I have one left if you're interested.

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m5750xx
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May 07, 2013, 09:22:21 AM
 #8

set:

-v -w128 in Extra flags:
christov84
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May 07, 2013, 02:00:38 PM
 #9

set:

-v -w128 in Extra flags:
Its scary how much of a difference this makes. I did this on my 6990 and it shot up to around 720mH/s

Like my post? Donate here: 1PX7e1XY3xhzEYxbgxHha8U5E2LJX8Gey9
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May 07, 2013, 02:20:27 PM
 #10

mark

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Let's flower the moon. SfjURGkYyjo8VFxfFPXS89CHhXS2mao3kA
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