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Title: Accuracy of GPU performance measures Post by: Sjalq on May 24, 2011, 12:57:47 PM 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? Title: Re: Accuracy of GPU performance measures Post by: Basiley on May 24, 2011, 01:03:34 PM Ati: from 5850 to 6990. some was use even 5830 and 48xx, but thats not so reasonable.
Title: Re: Accuracy of GPU performance measures Post by: kjj on May 24, 2011, 01:14:33 PM Is it really that hard to make a spreadsheet to calculate hashing power per dollar?
Title: Re: Accuracy of GPU performance measures Post by: Meni Rosenfeld on May 24, 2011, 01:23:47 PM 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. Title: Re: Accuracy of GPU performance measures Post by: Basiley on May 24, 2011, 06:16:30 PM 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. 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.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. google [questionably reasonable]difference between VLIW5 [58x0 GPU's]and VLIW4 [69xx GPU's]. |