I am planning on getting a 6 monitor setup for my home office. The problem is, I want to use those monitors with my Lenovo Thinkpad T420s. The T420s supports only 3 external monitors by itself.
Therefore I would like to get an external graphicscard which will be connected via the ExpressCard slot.
The T420s has:
- PCI Express v2.0 => 1 Lane has 500MB/s
- ExpressCard 34 2.0 supported
I would go for a AMD Radeon 7870 Eyefinity 6 card which has itself 6 miniDisplayPort ports. That card I am going to place in either the ViDock 4 Plus or a not so shiny self made solution.
I want to use the 6 monitors for office applications and development. But it should as well be possible to watch a full hd movie (scaled up) on those 6 monitors.
Is the available bandwith enough for a resolution of 6 times full HD (3*1920 * 2*1080 = 5760*2160) with such a setup using expresscard->external graphics card?
What kind of performance drop might occur because of PCI-E x1 instead of x16?