Quote from: mercSuey on July 17, 2013, 01:32:06 PM

Quote from: gooseta on July 17, 2013, 01:08:49 PM

Quote from: mercSuey on July 17, 2013, 12:53:22 PM

Quote from: gooseta on July 17, 2013, 10:17:59 AM

The sapphire vapor cards seem to be the best for hashing... Agree/disagree?

I don't like 7950s for two reasons. 1) because you have to run them at intensity 20, they draw more electricity than 7970s. 2)because of high intensity, I found them to be less stable and not as efficient as popular consensus claims. Moreover, I had the standard Sapphire 7950s (the ones advertised on coinchoose), and those fans are as loud as a industrial vacuum cleaner. So, if you don't have a basement or garage, or just some separate space for your rig, then it can get really annoying. I have twelve 7970s, both Gigabyte and Sapphire Vapor-X. The Vapor-X are awesome and seem to be most stable. That's not to say the Giga's are bad. It's just that the Vapor-X gpus have worked pretty much flawlessly. The Giga's have had a couple hiccups along the way, but nothing serious. But the Giga's were $400 usd from Amazon and I'm a prime member and I get 764kh on them. The Vapor-X were $450 and I also get 764kh on them. A quad rig pulls 1300 watts, without touching voltage.

-Merc

I was originally thinking of 7970s, but they draw more power : fact. A 5x7970 rig would require more than 1475w like my 5x 7950 build

I forgot to mention resale value of 7970s are much better. This is going to come into play when next gen models hit the market later this year (supposedly).

Yes but 5x 7950 is £1600 and makes 2800-3000kh/s. 4x 7970 is £1600 and makes 2600 kh/s and draws more power