How to make a 640x480 screen resolution (Grand Theft Auto 4)

create a text (.txt) file with the name commandline, and shove it into it:

-width 640
-height 480

Save and come out. Whether it will help or not, I don't know

Prescribed, but only on the menu I still shows 800x480

It depends on the monitor.
I have two of them: to the first (1280 x1024) connect the minimum - 640 x480
and the second (1920s1080) minimum - 800 x600

Chort friend you won't believe! O'0
Previously, under the old computer (vidich, percent) the resolution could be reduced to 640 x480 But now the iron has been updated and the minimum resolution which is possibly 800 x600
You try to do shorter as axelite comrad advises:
Create a commandline.txt file and promote it:
-width 640
-height 480

Oh yes, at the root of the game you have to create.

It all worked out, as advised by axelite.

Zom-Bear
It doesn't work

I can't even change the software