I was wondering how much power I can really save with my 4 monitors setup .
Whatever videocard(s) I choose, in order to have 4 dvi conections for my monitors I will have to use abaut the same power .
For example power consumption for bellow cards alone ( info from http://benchmarkreviews.com/index.php?option=com_conten... ) :
- HD4850x2 ( 4 dvi connections) alone use 73 W idle and 180 W loaded.
-HD6870 alone ( 4 monitor connections) = 20 W idle / 162 W loaded.
- 2 cheaper cards HD 4670 uses alone 9 W idle and 70 W loaded . x2 cards for my case = 20W /140 W.
So I will save around 50 W per hour with 2 HD 4670 but the system performance will be much much worst . In my case ( 8 hours/day of use / 22 days ) I will save around 9 Kw/month with HD 4670, which is 1euro in my country.
Actually I have 4 monitors , I use them for trading , I use 4 internet live video feeds + 4 websites autorefreshed with data + 4 applications with charts. I dont know what I really need ,large bandwith or more ram memory. My old 3870x2 (4 x dvi ) was doing well but its dead.