What is the cheapest graphics card that will run Fallout 3 on the highest setting?

[qwzxlk]

I want to get Fallout 3 for the PC, but I don't know if my current graphics card is good enough (ATI Radeon X300). What is the cheapest graphics card that I could get to still run Fallout 3 on the highest setting? I don't know much about graphics cards.

[Jarmok]

Hi,
your card is not enough to play at max settings. I've payed at max with my Radeon HD 2900, two generations older than today's HD 4XXX.

You should do it with a Radeon HD 3800 series, about 77€ in my country.

[jbennet]

A Geforce 8600 is cheap and will run it pretty well (on medium/high). Get the 512mb version (not the 256).

P.S if your PC has a crappy X300, it may need an upgraded power supply.