GPU optimizing with cpu and mobo to a £100

[ArtificialSquare]

I have E4500 CPU and a P5K motherboard 8GB of ram 677, what would be a good choice of graphics card for me. Graphics card would be for HD video processing (I need it to be with hdmi, dual display (2x DVI maybe)), and 3D rendering and gaming . As I have Intel chipset I might consider of a crossfire. I'm familiar with overclocking so I can do that. I would be grateful for the answer. I'm asking because I don't know a lot of bottlenecking and I don't really know the specifics if you need graphics card for work with video or 3d. What is the main things that change between cards for work with HD videos and cards for 3D modelling? Sorry for so many questions.

 

[amuffin]

Radeon 6770. Also, overclock your E4500!

 

[bobusboy]

Go for a 6790 if you're going for that old mid-range. I had one and it gave me excellent gaming for the price and excellent dual monitor support.

I also did a lot of 3ds max and photoshop work on it.