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Title: The Lowest heat producing Radeon card? Post by: 420 on May 25, 2013, 09:13:05 PM Which card produces the least heat per hash
I want to buy it Title: Re: The Lowest heat producing Radeon card? Post by: Littleshop on May 26, 2013, 01:56:33 AM Which card produces the least heat? (and hashes efficiently) I want to buy it The least heat per hash would be a 7970. You do need to find one that has unlocked voltage though, that can make a big difference with undervolting. Title: Re: The Lowest heat producing Radeon card? Post by: ssateneth on May 28, 2013, 08:51:18 PM The least heat (period) would be a radeon 5450 or 6450.
Title: Re: The Lowest heat producing Radeon card? Post by: zvs on May 28, 2013, 10:34:06 PM 7790's should get around 300mhash @ max of 85 watts (ed: hmm, probably thinking of the 7770 and like 100 watts? maybe 150 for the 7790?)? what is the 7970?
Title: Re: The Lowest heat producing Radeon card? Post by: crazyates on May 29, 2013, 03:24:21 AM The lowest heat producing card will either mean A) the smallest, cheapest, slowest card you can find, or B) a high end card that's undervolted to all hell.
For the former, you're talking about a 5450 (19MH/s @ 19W TDP), or a 7750 (150Mh/s @ 55W TDP). Both of those also have the advantage of being powered right off the PCIe slot, so you don't need to upgrade your PSU to use them. For the latter, you can't get much better than a 7970. I got mine down to 380MH/s @ 61W (http://postimg.org/image/5oxofpefl/). Those voltage unlocked cards can reach some awesome efficiency numbers. Not the most profitable, but the most energy efficient GPU out there. Title: Re: The Lowest heat producing Radeon card? Post by: 420 on June 13, 2013, 09:18:34 AM obviously i mean the least heat per hash
Title: Re: The Lowest heat producing Radeon card? Post by: abbeytim on June 13, 2013, 11:16:05 AM basically you want best mh/watt cause watts gets transferred into heat
Title: Re: The Lowest heat producing Radeon card? Post by: GenTarkin on June 13, 2013, 04:21:47 PM I would second the 7790 - Ive gotten one to do 315mh/s @ 1200mhz
The thing had hardly any hot air around the HSF and it was running at like 50-60C Used barely any power, it was over 3mh/s/watt |