I am having MSI's R5450-MD1GD3H in my mind to drive two monitors: 1.1920x1200, 2. 1600x1200
I have concluded that the display card can drive it with HDMI + DVI simultaneously. The last question is my mind is whether these 2 display can run in different resolutions under 'extended desktop' mode in Windows.
If MSI is not capable of doing so, what's your suggestion please (note: a requirement is to use HDMI + DVI at the same time)?
Eyefinity is something different, and I have no experience with it. It's used to run several (more than two) monitors together for things like games spanning all your monitors. As a result, it's probably got stricter requirements on the resolutions you can use.
Plain old desktop extending is fine with whatever resolutions you feel like using though. I don't think I've ever run both of my monitors at the same resolution, since I spend more on my primary display than the secondary. It looks pretty goofy actually, a nice 27" 1080p display next to a crappy 20" display from 2008.