Upgrade Video Card on 5 year old rig

[barensadau]

I built this rig five years ago:

asus a8v deluxe
amd athlon64 3000+
1g ram
ati radeon 9800 pro



i want to play fallout 3.
my ati radeon 9800 pro is not supported chipset, and there are widely documented issues involved with playing fallout 3 on pcs like mine.

so i want to get a new card, i guess one of these:

Supported Video Card Chipsets:

* NVIDIA GeForce 200 series
* NVIDIA Geforce 9800 series
* NVIDIA Geforce 9600 series
* NVIDIA Geforce 8800 series
* NVIDIA Geforce 8600 series
* NVIDIA Geforce 8500 series
* NVIDIA Geforce 8400 series
* NVIDIA Geforce 7900 series
* NVIDIA Geforce 7800 series
* NVIDIA Geforce 7600 series
* NVIDIA Geforce 7300 series
* NVIDIA GeForce 6800 series
* ATI HD 4800 series
* ATI HD 4600 series
* ATI HD 3800 series
* ATI HD 3600 series
* ATI HD 3400 series
* ATI HD 2900 series
* ATI HD 2600 series
* ATI HD 2400 series
* ATI X1900 series
* ATI X1800 series
* ATI X1600 series
* ATI X1300 series
* ATI X850 series


some questions -

anyone have any recommendations to me as far as how any of these video cards (if they're AGP) may perform compared to what I have, and also if with my current set-up would buying more memory improve performance?

[hockey man]

What is your PSU rating? We'll need that to adequately recommend something.

[saphalline]

If your PSU can support a 9800 Pro, then you should buy an HD 3850 (http://www.newegg.com/Product/Product.aspx?Item=N82E16814102730). Add another gig of RAM while you're at it.

And please upgrade soon! Your system specs are hurting my eyes!