I am playing Euro Truck Simulator 2 . ...And i am listening nyan cat , cause I can stay awake only when i am listening this. OMG cant wait 1 hour and 5 minutes !!!!!!
The 8400GS was awful when it was new, and that was 7 years ago. A Pentium 4 and 8400GS machine won't run ANYTHING new.
I honestly don't think Minecraft will run properly on any of those two cards, be it AMD or Nvidia. I insist on my idea of saving up for a much better one. One around 100 bucks should do the job.
I wouldn't expect to run shaders at 30+ fps on anything less than a GTX 650 Ti and that is even pushing it.
I have a 7300 LT in my old desktop and it can't even run minecraft at 30fps on lowest settings. I wouldn't expect a 7300 GS to help any...