Which is best graphics card for DG41WV

[Ragu nandhan]

Hi friends,
i need a graphics card for doing CAD works and Gaming(not a hard core gamer) under 5000rs.
my PC configuration
Motherboard : Intel DG41WV
Processor : Pentium E5700
RAM : 6gb(2+4) DDR3 transcend 1333 mhz
HDD : 500gb
Cabinet : iball i9090

 

[Coolboy951]

PSU?

 

[Ragu nandhan]

250W

 

[Coolboy951]

hd 6670 is a great low budget card

 

[Ragu nandhan]

thank you friend...

 

[Ragu nandhan]

friend 1gb or 2gb which one is better...and they mention than its need 450w supply but i have a 250 one...is this work in my pc