If you want fanless, there are a lot of radeon hd5450's out there that have no fans, and power 2 displays each if I recall correctly. I'm sure they will long outlast your processors performance needs, running all day. For an at-home trader, with one computer, seems like a good option for the price. Like this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150655
Nice thing about these is they do run higher resolution monitors, like 2560x1600 for example. Not as high as a 7850 would, but enough for most of todays monitors.
Note that not all NVS are fanless, like this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814133493
Probably sounds like a helicopter, and will die in a few months. And it looks like it wont do more than 1920x1200 on dvi. Though it will if you get the displayport version.
I can imagine a scenario where you might want one of these, if the computer was very hot... then maybe these are more stable at high temps. Though I don't know.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150655
Nice thing about these is they do run higher resolution monitors, like 2560x1600 for example. Not as high as a 7850 would, but enough for most of todays monitors.
Note that not all NVS are fanless, like this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814133493
Probably sounds like a helicopter, and will die in a few months. And it looks like it wont do more than 1920x1200 on dvi. Though it will if you get the displayport version.
I can imagine a scenario where you might want one of these, if the computer was very hot... then maybe these are more stable at high temps. Though I don't know.