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Author Topic: Accuracy of GPU performance measures  (Read 1200 times)
Sjalq
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May 24, 2011, 12:57:47 PM
 #1

Hi guys,

I'm new to all things mining and abandoned the idea back when we were below $2.00

What I don't understand is why according to the BitCoin wiki the hash rate is going down with new GPUs. ( https://en.bitcoin.it/wiki/Mining_Hardware_Comparison )

Basically what is the most cost effective GPU to buy these days based only on cost of equipment?


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Basiley
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May 24, 2011, 01:03:34 PM
 #2

Ati: from 5850 to 6990. some was use even 5830 and 48xx, but thats not so reasonable.
kjj
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May 24, 2011, 01:14:33 PM
 #3

Is it really that hard to make a spreadsheet to calculate hashing power per dollar?

p2pcoin: a USB/CD/PXE p2pool miner - 1N8ZXx2cuMzqBYSK72X4DAy1UdDbZQNPLf - todo
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Meni Rosenfeld
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May 24, 2011, 01:23:47 PM
 #4

Chalk it up to ATI's confusing naming scheme. 6870 is a weaker card than 5870, also I think miners are not yet optimized for 6XXX.

A rig with two 5970 is very solid if you can find some. If you want to add to an existing machine, a 5870 is good.

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Basiley
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May 24, 2011, 06:16:30 PM
 #5

Chalk it up to ATI's confusing naming scheme. 6870 is a weaker card than 5870, also I think miners are not yet optimized for 6XXX.

A rig with two 5970 is very solid if you can find some. If you want to add to an existing machine, a 5870 is good.
more likely not "miners not optimised", but 69xx less suitable for GPGPU usage and bit more suitable for gaming thanks to improved ROP's and memory size/speed.
google [questionably reasonable]difference between VLIW5 [58x0 GPU's]and VLIW4 [69xx GPU's].
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