TriplePolice

Well, If you have a Nvidia graphics card that's low end like mine, You probably want to get that extra FPS and play Gta IV smoothly.
 
Well, Your in luck. Because im going to teach you how to overclock your card, Safely.
 
The first thing you do, is download the latest drivers for your Nvidia. Use http://nvidia.com and navigate to the drivers section.
 
Step two, the overclocking tool i recommend is the MSI Afterburner. It is a free software and you can download it here: http://event.msi.com/vga/afterburner/download.htm
 
Step three, After you have downloaded the driver updates and MSI Afterburner, Its time for you too start Overclocking!
 
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How to overclock with MSI Afterburner:
 
Note: This added 12 more FPS to my Gta IV, I use a Nvidia Geforce Gt610.
 
Firstly, I recommend only changing the Core Clock, And the Memory Clock. If you don't know what your doing don't touch the rest.
 
Move the Core Clock to the right, Dragging it around 5-15 Mhz a time. Don't just go to the max and apply it, That can cause over heating problems and causing your Graphics card to fry. 
 
The Memory Clock however, Cannot go to the same frequency as the Core Clock. The memory core will stay at 596 Mhz in my case, And the Core Clock will go up to around 950-1000 Mhz frequency. 
 
Choose the setting where you think it will be just right for you. As i said, I gained 12-13 Average FPS in the Gta IV benchmark.
 
if anything happens to your PC or Laptop, Its not my fault. But, It should all be fine if you follow the steps above.
 
If you need any help at all, Comment.  Hope i helped!
 
 

Ok, Thanks a lot. -Respect from Leytonstone