» Thu Apr 07, 2011 11:06 pm
a 6800, although the minimum supported can still run the game. However your real problem, even with a videocard upgrade is your RAM. 1GB is pushing minimum. Fallout uses about 550-60MB of system memory when in the outside world, and the operating system takes about 15-25% of your system memory for its own use, leaving you with almost nothing for anything else. This will cause a lot of loading lag and bottlenecking aas the game tries to swap things in and out of memory.
If you do plan to go with a basic videocard upgrade, IE: the 9500GT, be sure to get the 1GB version, as this will significantly help, though it won't solve the problem. Ideally you would want at least 2GB of RAM.
Also keep in mind that if you have a 32bit operating system, looks like XP so i would assume so, that if you ended up getting 4GB of ram and a 1GB 9500, that stacks together totalling 5GB of "ram, and a 32bit OS can only support up to 4GB, so you are losing out on 1 whole GB of memory.
The details of fine tuning a computer for performance are almost endless, as there are so many things you can do, but if you are looking to spend as little as possible (aren't we all) then perhaps something like a 9500GT 1GB might do you wonders. If inclined, upgrading to 2GB of RAM wouldn't be a bad choice either. With those 2 changes, you should be able to run fallout fairly well.
Also, don't trust CanYouRunIt. It fails to recognize videocards power, and instead rates them on how new it is.