his current setup is :
processor : Pentium® Dual-Core CPU E5400 2,70GHz
RAM : 2,00 GB
System Type : Windows 7 32-Bit
Graphics Card : intel g41 express chipset (microsoft corporation - wddm 1.1)
looking at what kind of games he's willing to play towards, won't help alot too.
It's not worth to get "only" an advanced GPU, unless you want bottleneck-fest.
+ Yes, the Gpu I suggested is more expensive in his region. but if you're having a low standard pc.
It's not worth to let it even struggle with newer kind of componements like a GTX.