DG43RK motherboard with nvidia geforce gtx 970

[impeham]

i currently own DG43RK motherboard:

http://ark.intel.com/products/43604/Intel-Desktop-Board-DG43RK

with a radeon HD6850 graphics card.

few questions:
1. i was wondering if i can and should buy the nvidia geforce gtx 970 and how much will that improve the performance/look of the games with this motherboard:
http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-970/specifications

2. i couldn't find anywhere if the board supports 256bit for bus - is it always supported for pcie 2.1?

3. will this card support 4k and 3D video playbacks?

4. is there a better alternatives i should consider? should i buy a different/newer motherboard (i prefer not to as the current machine works great for me)

 

[A12MO12]

1) Large increase with the gtx 970

2)The way it works is quite simply the bus width pretty much controls the number of memory chips that can be used on the card.
A GPU with 256-bit bus has 8 memory chips minimum, since each memory chip have a 32-bit wide bus. It should work on this mobo but I would think that the CPU would become a bottleneck.

3)This card can run 4k, but not at 60 fps with max settings on games. You would need SLI 970s and to lower a few settings to get steady 45-60 fps on 4k.

4)I would consider a different mobo and CPU honestly.The 970 is a great video card but your current board supports low end CPU which will bottleneck your card. You could get something like i5 4690/i5 4460 and a Z97 mobo like Asus-A.

 

[impeham]

Thanks