These are the specifications. I know that the graphic card out there is not the best but is there an era through which I could run it on the low settings?
That's the thing, you don't even have a graphics card, you're using a processor to process graphics, which first of all has a chance to burn your CPU if you run GTA 4, it might work on minimum settings tho.
Minimum requirementsCPU:Intel Core 2 Duo 1.8GHz, AMD Athlon X2 64 2.4GHz
CPU Speed: 1.8 GHz
RAM: 1 GB for Windows XP / 1.5 GB for Windows Vista)
OS: Windows Vista - Service Pack 1 / XP - Service Pack 3 / Windows 7
Video Card: 256MB NVIDIA 7900+ / 256MB ATI X1900+
Sound Card: Yes
Free Disk Space: 16 GB